2010 Mercedes-benz CLS Class Owners Manual

If you have any questions regarding activation, please call the Customer Assistance Center at 1-800-FOR-MERCedes (1-800-367-6372) (USA only) or 1-888-923-8367 (Canada only).

An emergency call is initiated automatically following an accident in which the Emergency Tensioning Devices (ETDs) or air bags have deployed. i An automatically initiated Tele Aid emergency call cannot be canceled. An emergency call can also be initiated manually (Y page 166). Once the emergency call is in progress, the indicator lamp in the SOS button will begin to flash. The message Connecting Call appears in the multifunction display and the COMAND system is muted. When the connection is established, the message Call Connected appears in the multifunction display. All information relevant to the emergency, such as the location of the vehicle (determined by the GPS satellite location system), vehicle model, identification number and color are generated. A voice connection between the Customer Assistance Center and the occupants of the vehicle will be established automatically soon after the emergency call has been initiated. The Customer Assistance Center will attempt to determine the nature of the emergency more precisely, provided they can speak to an occupant of the vehicle. i If no vehicle occupant responds, an ambulance will be sent to the vehicle immediately. G Warning! If the indicator lamp in the SOS button is flashing continuously and there was no voice connection to the Customer Assistance Center established, then the Tele Aid system could not initiate an emergency call (e.g. the

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relevant cellular phone network is not available). The message Call Failed appears in the multifunction display for approximately 10 seconds. Should this occur, assistance must be summoned by other means.

i The “911” emergency call system is a

public service. Using it without due cause is a criminal offense.

Initiating an emergency call manually

signal and cannot make voice contact with the vehicle occupants.

X Terminating calls: Press button ~ on

the multifunction steering wheel.

or X Press the respective button for ending a telephone call on the COMAND system.

Roadside Assistance button

X Briefly press on cover : to open. X Press SOS button ; briefly.

The indicator lamp in SOS button ; will flash until the emergency call is concluded.

X Wait for a voice connection to the

Customer Assistance Center.

X Close cover : after the emergency call is

concluded. G Warning! If you feel at any way in jeopardy when in the vehicle (e.g. smoke or fire in the vehicle, vehicle in a dangerous road location), please do not wait for voice contact after you have pressed the emergency button. Carefully leave the vehicle and move to a safe location. The Customer Assistance Center will automatically contact local emergency officials with the vehicle’s approximate location if they receive an automatic SOS

X Press and hold Roadside Assistance button : for longer than 2 seconds. A call to a Mercedes-Benz Roadside Assistance dispatcher will be initiated. The indicator lamp in Roadside Assistance button : will flash while the call is in progress. The message Connecting Call will appear in the multifunction display and the COMAND system is muted. When the connection is established, the message Call Connected appears in the multifunction display. The Tele Aid system will transmit data generating the vehicle identification number, model, color and location (subject to availability of cellular and GPS signals). i The COMAND system display indicates that a Tele Aid call is in progress. While the call is connected you can change to the navigation menu by pressing the NAVI button on the COMAND system. Spoken commands are not available.

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A voice connection between the Roadside Assistance dispatcher and the occupants of the vehicle will be established. X Describe the nature of the need for

assistance.

The Mercedes-Benz Roadside Assistance dispatcher will either dispatch a qualified Mercedes-Benz technician or arrange to tow your vehicle to the nearest authorized Mercedes-Benz Center. For services such as labor and/or towing, charges may apply. Refer to the Roadside Assistance manual for more information. Sign and Drive services (USA only): Services such as a jump start, a few gallons of fuel or the replacement of a flat tire with the vehicle spare wheel are obtainable at no charge. i If the indicator lamp in Roadside

Assistance button : is flashing continuously and there was no voice connection to the Customer Assistance Center established, then the Tele Aid system could not initiate a Roadside Assistance call (e.g. the relevant cellular phone network is not available). The message Call Failed appears in the multifunction display.

X Terminating calls: Press button ~ on

the multifunction steering wheel.

or X Press the respective button for ending a telephone call on the COMAND system.

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Information button

X Press and hold Information button : for

longer than 2 seconds. A call to the Customer Assistance Center will be initiated. The indicator lamp in Information button : will flash while the call is in progress. The message Connecting Call will appear in the multifunction display and the COMAND system is muted. When the connection is established, the message Call Connected appears in the multifunction display. The Tele Aid system will transmit data generating the vehicle identification number, model, color and location (subject to availability of cellular and GPS signals). i The COMAND system display indicates that a Tele Aid call is in progress. While the call is connected you can change to the navigation menu by pressing the NAVI button on the COMAND system. Spoken commands are not available.

A voice connection between the Customer Assistance Center representative and the occupants of the vehicle will be established. Information regarding the operation of your vehicle, the nearest authorized Mercedes- Benz Center or Mercedes-Benz USA products and services is available to you. For more details concerning the Tele Aid system, please visit www.mbusa.com (USA only), log in to “Owner’s Online” and visit the “My Tele Aid” section to learn more.

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i If the indicator lamp in Information

button : is flashing continuously and there was no voice connection to the Customer Assistance Center established, then the Tele Aid system could not initiate an Information call (e.g. the relevant cellular phone network is not available). The message Call Failed appears in the multifunction display.

X Terminating calls: Press button ~ on

the multifunction steering wheel.

or X Press the respective button for ending a telephone call on the COMAND system.

Call priority If other service calls such as a Roadside Assistance call or Information call are active, an emergency call is still possible. In this case, the emergency call will take priority and override all other active calls. The indicator lamp in the respective button flashes until the call is concluded. Automatic initiated emergency calls can only be terminated by a Customer Assistance Center representative. All other calls can be terminated by pressing button ~ on the multifunction steering wheel or the respective button for ending a telephone call on the COMAND system. i When a Tele Aid call has been initiated, the COMAND system audio is muted. The mobile phone is no longer connected to the COMAND system. If you must use this phone, we recommend that you use it only with the vehicle at a standstill in a safe location.

Destination Download to the COMAND system i The components and operating principles of the COMAND system can be found in the separate COMAND system operating instructions.

Destination Download allows you access to a database of over 10 million points of interest (POIs) that can be downloaded to your vehicle’s navigation system. If you know the destination, the address can be downloaded, or can be provided with points of interests near your location. Route guidance You will be prompted to confirm that route guidance to the entered address is to be started. X Select Yes using button = or ; on the COMAND system.

X Press button 9 on the COMAND system

to confirm.

The system calculates the route and subsequently starts the route guidance to the defined address. i If you select No, you can save the address to your address book.

i The Destination Download feature is available if the relevant mobile phone network is available and data connection is possible.

Search & Send “Search & Send” is a navigation destination address entry service. For more information on “Search & Send”, refer to separate COMAND system operating instructions.

Remote door unlock In case you have locked your vehicle unintentionally (e.g. SmartKey inside vehicle), and the reserve SmartKey is not available: X Contact the Customer Assistance Center

at 1-800-FOR-MERCedes (1-800-367-6372) (USA only) or 1-888-923-8367 (Canada only). You will be asked to provide your password.

X Then return to your vehicle at the time arranged with the Customer Assistance Center and pull the trunk recessed handle

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for a minimum of 20 seconds until the indicator lamp in the SOS button is flashing. The message Connecting Call appears in the multifunction display.

As an alternative, you may unlock the vehicle via Internet in the “My Tele Aid” section of “Owner’s Online”, using your ID and password (USA only). i The remote door unlock feature is

available if the relevant cellular phone network is available. The SOS button will flash and the message Connecting Call will appear in the multifunction display to indicate receipt of the door unlock command. If the tailgate recessed handle was pulled for more than 20 seconds before door unlock authorization was received by the Customer Assistance Center, you must wait 15 minutes before pulling the tailgate recessed handle again.

Stolen Vehicle Recovery Services In the event your vehicle was stolen: X Report the incident to the police.

The police will issue a numbered incident report.

X Pass this number on to the Customer

Assistance Center along with your password. The Customer Assistance Center will then attempt to covertly contact the vehicle’s Tele Aid system. Once the vehicle is located, the Customer Assistance Center will contact the local law enforcement and you. The vehicle’s location will only be provided to law enforcement.

i If the anti-theft alarm stays on for more than 30 seconds, the Tele Aid system will notify the Customer Assistance Center automatically.

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Garage door opener The integrated remote control can operate up to three separately controlled devices compatible with HomeLink® or some other systems. G Warning! Before programming the integrated remote control to a garage door opener or gate operator, make sure people and objects are out of the way of the device to prevent potential harm or damage. When programming a garage door opener, the door moves up or down. When programming a gate operator, the gate opens or closes. Do not use the integrated remote control with any garage door opener that lacks safety stop and reverse features as required by U.S. federal safety standards (this includes any garage door opener model manufactured before April 1, 1982). A garage door that cannot detect an object - signaling the door to stop and reverse - does not meet current U.S. federal safety standards. When programming a garage door opener, park vehicle outside the garage. Do not run the engine while programming the integrated remote control. Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains carbon monoxide (CO), and inhaling it can cause unconsciousness and possible death.

Interior rear view mirror with integrated remote control

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Hand-held remote control A is not part of the vehicle equipment.

Programming the integrated remote control X Step 1: Switch on the ignition. X Step 2: If you have previously programmed

a signal transmitter button and wish to retain its programming, proceed to step 3.

or X If you are programming the integrated

remote control for the first time, press and hold the two outer signal transmitter buttons ; and ? and release them when indicator lamp : begins to flash after approximately 20 seconds. Do not hold the buttons for longer than 30 seconds. This procedure erases any previous settings for all three channels and initializes the memory. If you later wish to program a second and/or third hand-held transmitter to the remaining two signal transmitter buttons, do not repeat this step and begin directly with step 3.

X Step 3: Hold the end of hand-held remote control A of the device you wish to train approximately 2 to 12 in (5 to 30 cm) away from the signal transmitter button (;, = or ?) to be programmed, while keeping indicator lamp : in view.

X Step 4: Using both hands, simultaneously press hand-held remote control button B and the desired signal transmitter button (;, = or ?). Do not release the buttons until step 5 is completed. Indicator lamp : will flash, first slowly and then rapidly.

i Indicator lamp : flashes immediately

the first time the signal transmitter button is programmed. If this button has already been programmed, the indicator lamp will start flashing after 20 seconds.

X Step 5: After indicator lamp : changes

from a slow to a rapidly flashing light, release the hand-held remote control button and the signal transmitter button.

X Step 6: Press and hold the just-trained

signal transmitter button (;, = or ?) and observe indicator lamp :. If indicator lamp : stays on constantly, programming is complete and your device should activate when the respective signal transmitter button (;, = or ?) is pressed and released.

i If indicator lamp : flashes rapidly for

approximately 2 seconds and then turns to a constant light, continue with programming steps 8 through 12 as your garage door opener may be equipped with the “rolling code” feature.

X Step 7: To program the remaining two

signal transmitter buttons, repeat the steps above starting with step 3.

Rolling code programming To train a garage door opener (or other rolling code devices) with the rolling code feature, follow these instructions after completing the “Programming” portion (steps 1 through 6) of this text. For your convenience and to complete the procedure faster, you might want to have someone assist you. X Step 8: Locate the “training” button on the

garage door opener motor head unit.

i Exact location and color of the button may

vary by garage door opener brand. Depending on manufacturer, the “training” button may also be referred to as “learn” or “smart” button. If there is difficulty locating the transmitting button, refer to the garage door opener Operator’s Manual.

X Step 9: Press the “training” button on the

garage door opener motor head unit. The “training light” is activated. You have 30 seconds to initiate the following two steps.

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X Step 10: Return to the vehicle and firmly press, hold for 2 seconds and release the programmed signal transmitter button (;, = or ?).

X Step 11: Press, hold for 2 seconds and release same signal transmitter button a second time to complete the training process.

i Some garage door openers (or other

rolling code equipped devices) may require you to press, hold for 2 seconds and release the same signal transmitter button a third time to complete the training process.

X Step 12: Confirm the garage door

operation by pressing the programmed signal transmitter button (;, = or ?). X Step 13: To program the remaining two

signal transmitter buttons, repeat the steps above starting with step 3.

Gate operator/Canadian programming Canadian radio-frequency laws require transmitter signals to “time-out” (or quit) after several seconds of transmission which may not be long enough for the integrated signal transmitter to pick up the signal during programming. Similar to this Canadian law, some U.S. gate operators are designed to “time-out” in the same manner. If you live in Canada or if you are having difficulties programming a gate operator (regardless of where you live) by using the programming procedures, replace step 4 with the following: X Step 4: Press and hold the signal

transmitter button (;, = or ?). Do not release this button until it has been successfully trained.

X While still holding down the signal

transmitter button (;, = or ?), “cycle” your hand-held remote control button B as follows: Press and hold button B for 2 seconds, then release it for 2 seconds, and again press and hold it for 2 seconds.

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Repeat this sequence on the hand-held remote control until the frequency signal has been learned. Upon successful training, indicator lamp : will flash slowly and then rapidly after several seconds.

X Proceed with programming step 5 and

step 6 to complete.

i Upon completion of programming the

integrated remote control, make sure you retain the hand-held remote control that came with the garage door opener, gate operator or other device. You may need it for use in other vehicles, for future programming of an integrated remote control, or simply for continued use as a hand-held remote control to operate the respective device in other situations.

Reprogramming a single signal transmitter button To program a device using a signal transmitter button previously trained, follow these steps: X Switch on the ignition. X Press and hold the desired signal

transmitter button (;, = or ?). Do not release the button. Indicator lamp : will begin to flash after 20 seconds.

X Without releasing the signal transmitter

button, proceed with programming starting with step 3.

Operation of integrated remote control X Switch on the ignition. X Select and press the appropriate

integrated signal transmitter button (;, = or ?) to activate the remote controlled device. The integrated remote control transmitter continues to send the signal as long as the button is pressed – up to 20 seconds.

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Erasing the integrated remote control memory i If you sell your vehicle, erase the codes of

all three channels.

X Switch on the ignition. X Simultaneously press and hold outer signal

transmitter buttons ; and ?, for approximately 20 seconds, until indicator lamp : flashes rapidly. Do not hold for longer than 30 seconds. The codes of all three channels are erased.

Programming tips If you are having difficulty programming the integrated remote control, here are some helpful tips: RCheck the frequency of hand-held remote control A (typically located on the reverse side of the remote). The integrated remote control is compatible with radio-frequency devices operating between 280-390 MHz.

RPut a new battery in hand-held remote

control A. This will increase the likelihood of the hand-held remote control sending a stronger and more accurate signal to the integrated remote control.

RWhile performing step 3, hold hand-held

remote control A at different lengths and angles from the signal transmitter button (;, = or ?) you are programming. Attempt varying angles at the distance of 2
to 12 inches (5 to 30 cm) away or the same angle at varying distances.

RIf another hand-held remote control is available for the same device, try the programming steps again using that other hand-held remote control. Make sure new batteries are in the hand-held remote control before beginning the procedure.

RStraighten the antenna wire from the

garage door opener assembly. This may help improve transmitting and/or receiving signals.

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i Certain types of garage door openers are

incompatible with the integrated remote control. If you should experience further difficulties with programming the integrated remote control, contact an authorized Mercedes-Benz Center, or call the Mercedes-Benz Customer Assistance Center (USA only) at 1-800-FOR-MERCedes, or the HomeLink® Hotline (USA only) at 1-800-355-3515, or the Customer Service (Canada only) at 1-800-387-0100.

i USA only:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful

2.

interference, and this device must accept any interference received, including interference that may cause undesired operation.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

i Canada only:

This device complies with RSS-210 of Industry Canada. Operation is subject to the following two conditions: 1. This device may not cause interference,

and this device must accept any interference received, including interference that may cause undesired operation of the device.

2.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

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Floormats G Warning! Whenever you are using floormats, make sure there is enough clearance and that the floormats are securely fastened. Floormats should always be securely fastened using the fastening equipment. Before driving off, check that the floormats are securely in place and adjust them if necessary. A loose floormat could slip and hinder proper functioning of the pedals. Do not place several floormats on top of each other as this may impair pedal movement.

X Move the driver’s seat or front passenger

seat as far to the rear as possible.

X Removing: Pull floormat off of retainer

pins :.

X Installing: Press floormat eyelets ; onto

retainer pins :.

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Vehicle equipment ............................ 176
The first 1000 miles (1500 km) ....... 176
At the gas station ............................. 176
Engine compartment ........................ 178
Tires and wheels ............................... 182
Winter driving ................................... 208
Driving instructions .......................... 210
Maintenance ...................................... 214
Vehicle care ....................................... 215

175

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176 At the gas station

Vehicle equipment

i This Operator’s Manual describes all

features, standard or optional, potentially available for your vehicle at the time of purchase. Please be aware that your vehicle might not be equipped with all features described in this manual.

The first 1000 miles (1500 km)

The more cautiously you treat your vehicle during the break-in period, the more satisfied you will be with its performance later on. RDrive your vehicle during the first

1 000 miles (1 500 km) at varying but moderate vehicle and engine speeds.

RDuring this period, avoid heavy loads (full

throttle driving) and excessive engine speeds (no more than 2/3 of maximum rpm in each gear).

RSelect C as the preferred shift program

(Y page 105) for the first 1 000 miles (1 500 km).

RAvoid accelerating by kickdown. RDo not attempt to slow the vehicle down by

shifting to a lower gear using the gear selector lever.

RSelect gear ranges 3, 2 or 1 (Y page 104) only when driving at moderate speeds (for hill driving).

After 1 000 miles (1 500 km) you may gradually increase vehicle and engine speeds to the permissible maximum. ! Additional instructions for AMG vehicles: RDuring the first 1 000 miles (1 500 km),

do not exceed a speed of 85 mph (140 km/h).

RDuring this period, avoid engine speeds

above 4 500 rpm in each gear. RShift gears in a timely manner.

All of the above instructions, as may apply to your vehicle type, also apply when driving the first 1 000 miles (1 500 km) after the engine or the rear differential has been replaced. i Always obey applicable speed limits.

At the gas station Refueling G Warning! Gasoline is highly flammable and poisonous. It burns violently and can cause serious personal injury. Never allow sparks, flames or smoking materials near gasoline! Turn off the engine before refueling. Whenever you are around gasoline, avoid inhaling fumes and any skin or clothing contact. Extinguish all smoking materials. Direct skin contact with fuels and the inhalation of fuel vapors are damaging your health. G Warning! Overfilling of the fuel tank may create pressure in the system which could cause a gas discharge. This could cause the gas to spray back out when removing the fuel pump nozzle, which could cause personal injury.

! Never refuel vehicles with gasoline engine

with diesel fuel. Even small amounts of diesel fuel will damage the fuel system and engine. Damage resulting from the use of non-approved fuels or fuel additives or resulting from mixing gasoline with diesel fuel is not covered by the Mercedes-Benz Limited Warranty.

! If you have accidentally filled the tank

with incorrect or non-approved fuel, do not switch on the ignition. Otherwise the incorrect or non-approved fuel will get into the fuel lines. The fuel system must be drained completely. Contact an authorized

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Mercedes-Benz Center to have the fuel system drained completely.

! To prevent damage to the catalytic

converters, only use premium unleaded gasoline in this vehicle. Any noticeable irregularities in engine operation should be repaired promptly. Otherwise, excessive unburned fuel may reach the catalytic converter, causing it to overheat and potentially start a fire.

i Only use premium unleaded gasoline with

a minimum Posted Octane Rating of 91
(average of 96 RON/86 MON). Information on gasoline quality can normally be found on the fuel pump. Please contact gas station personnel in case labels on the pump cannot be found. For more information on gasoline, see “Premium unleaded gasoline” (Y page 299), see “Fuel requirements” (Y page 299), or contact an authorized Mercedes-Benz Center, or visit www.mbusa.com (USA only).

Locking/unlocking the vehicle with the SmartKey or KEYLESS-GO automatically locks/unlocks the fuel filler flap. i In case the central locking system does not release the fuel filler flap, see “Fuel filler flap” (Y page 263).

The fuel filler flap is located on the right-hand side of the vehicle towards the rear.

X Turn off the engine.

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i Leaving the engine running and the fuel filler cap open can cause the yellow fuel tank reserve warning lamp to flash and the malfunction indicator lamp = (USA only) or ; (Canada only) to illuminate. For more information, see also “Practical hints” (Y page 257).

X Remove the SmartKey from the starter

switch. KEYLESS-GO: Open the driver’s door. This puts the starter switch in position 0, same as with the SmartKey removed from the starter switch. The driver’s door then can be closed again.

X Opening: Press fuel filler flap : at the

point indicated by the arrow.

X Turn fuel filler cap ; counterclockwise. X Take off fuel filler cap ;. X Place fuel filler cap ; in direction of arrow

into holder =.

X Fully insert filler nozzle unit and refuel. X Only fill your tank until the filler nozzle unit

cuts out – do not top off or overfill.

X Closing: Turn fuel filler cap ; clockwise

until it audibly engages.

i Close the fuel filler flap before locking the vehicle. Otherwise the flap locking pin will prevent closing the fuel filler flap.

X Close fuel filler flap :.

Check regularly and before a long trip For information on quantities and requirements of operating agents, see “Fuels, coolants, lubricants, etc.” (Y page 296). Check the following: REngine oil level (Y page 179) RTire inflation pressure (Y page 185) RCoolant level (Y page 180) RVehicle lighting (Y page 266)

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178 Engine compartment

RWasher system and headlamp cleaning

system (Y page 181)

RBrake fluid (Y page 182)

Engine compartment Hood G Warning! Do not pull the release lever while the vehicle is in motion. Otherwise the hood could be forced open by passing air flow. This could cause the hood to come loose and injure you and/or others.

Opening G Warning! If you see flames or smoke coming from the engine compartment, or if the coolant temperature indicator indicates that the engine is overheated, do not open the hood. Move away from vehicle and do not open the hood until the engine has cooled. If necessary, call the fire department. G Warning! You could be injured when the hood is open – even when the engine is turned off. Parts of the engine can become very hot. To prevent burns, let the engine cool completely before touching any components on the vehicle. Comply with all relevant safety precautions. G Warning! To help prevent personal injury, stay clear of moving parts when the hood is open and the engine is running. The radiator fan may continue to run for approximately 30 seconds or may even restart after the engine has been turned off. Stay clear of fan blades.

G Warning! The engine is equipped with a transistorized ignition system. Because of the high voltage it is dangerous to touch any components (ignition coils, spark plug sockets, diagnostic socket) of the ignition system Rwith the engine running Rwhile starting the engine Rwhen the ignition is switched on and the

engine is turned manually

X Pull hood lock release lever :.

The hood is unlocked.

! Never open the hood if the wiper arms are folded forward away from the windshield. Otherwise the windshield wipers or the hood could be damaged.

X Push handle ; under the hood upwards. X Pull up on the hood and then release it. The hood will be held open at shoulder height by gas-filled struts automatically.

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Closing G Warning! When closing the hood, use extreme caution not to catch hands or fingers. Be careful that you do not close the hood on anyone. Make sure the hood is securely engaged before driving off. Do not continue driving if the hood can no longer engage after an accident, for example. The hood could otherwise come loose while the vehicle is in motion and injure you and/or others.

X Let the hood drop from a height of

approximately 8 in (20 cm).

X Check to make sure the hood is fully

closed. If you can raise the hood at a point above the headlamps, then it is not properly closed. Open it again and let it drop with somewhat greater force.

Engine oil The amount of oil your engine consumes will depend on a number of factors, including driving style. Increased oil consumption can occur when the vehicle is new or the vehicle is driven frequently at higher engine speeds. Engine oil consumption checks should only be made after the vehicle break-in period. ! Do not use any special lubricant additives, as these may damage the drive assemblies. Using special additives not approved by Mercedes-Benz may cause damage not covered by the Mercedes-Benz Limited Warranty. For further information contact an authorized Mercedes-Benz Center.

Notes on checking engine oil level When checking the oil level Rthe vehicle must be parked on level ground Rwith the engine at operating temperature, the vehicle must have been stationary for

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179

at least 5 minutes with the engine turned off

Rwith the engine not at operating

temperature, the vehicle must have been stationary for at least 30 minutes with the engine turned off

Checking engine oil level X Open the hood (Y page 178).

X Pull out oil dipstick :. X Wipe oil dipstick : clean. X Slowly insert oil dipstick : fully into the

dipstick guide tube.

X Pull out oil dipstick : again after approximately 3 seconds to obtain accurate reading. The oil level is correct when it is between lower (min) mark = and upper (max) mark ; of oil dipstick :.

i CLS 550:

The filling quantity between the upper and lower marks on the oil dipstick is approximately 2.1 US qt. (2.0 l).

i CLS 63 AMG:

The filling quantity between the upper and lower marks on the oil dipstick is approximately 1.6 US qt. (1.5 l).

X If necessary, add engine oil. For more information on engine oil, see “Fuels, coolants, lubricants etc.” (Y page 296).

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180 Engine compartment

For information on messages in the multifunction display concerning engine oil, see the “Practical hints” section (Y page 246).

Adding engine oil ! Only use approved engine oils and oil

filters required for vehicles with Maintenance System. For a listing of approved engine oils and oil filters, contact an authorized Mercedes-Benz Center or visit www.mbusa.com (USA only). The following will result in engine or emission control system damage not covered by the Mercedes-Benz Limited Warranty: RUsing engine oils and oil filters of

specification other than those expressly required for the Maintenance System. RChanging of oil and oil filter at change

intervals longer than those called for by the Maintenance System.

RUsing any oil additives.

CLS 550

CLS 63 AMG X Unscrew filler cap : from filler neck. X Add engine oil as required. Be careful not

to overfill with oil.

Be careful not to spill any oil when adding. Avoid environmental damage caused by oil entering the ground or water. ! Excess oil must be siphoned or drained off. It could cause damage to the engine and emission control system not covered by the Mercedes-Benz Limited Warranty.

X Screw filler cap : back on filler neck. For more information on engine oil, see the “Technical data” section (Y page 296) and (Y page 298).

Transmission fluid level The transmission fluid level does not need to be checked. If you notice transmission fluid loss or gearshifting malfunctions, have an authorized Mercedes-Benz Center check the transmission.

Coolant level The engine coolant is a mixture of water and anticorrosion/antifreeze. When checking the coolant level, the vehicle must be parked on level ground, and the coolant temperature must be below 158‡ (70†).

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G Warning! In order to avoid any potentially serious burns: RUse extreme caution when opening the hood if there are any signs of steam or coolant leaking from the cooling system, or if the coolant temperature indicator indicates that the coolant is overheated.

RDo not remove the cap on the coolant

expansion tank if the coolant temperature is above 158‡ (70†). Allow the engine to cool down before removing the cap. The coolant expansion tank contains hot fluid and is under pressure.

RUsing a rag, slowly open the cap

approximately 1/2 turn counterclockwise to relieve excess pressure. If opened immediately, scalding hot fluid and steam will be blown out under pressure.

RDo not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn if it comes into contact with hot engine parts.

X Using a rag, slowly open cap :

approximately 1/2 turn counterclockwise to relieve excess pressure.

X Continue turning cap : counterclockwise

and remove it.

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181

The coolant level is correct if the level Rfor cold coolant: reaches marking bar

= in coolant expansion tank ;

Rfor warm coolant: is approximately 0.6 in

(1.5 cm) higher

X Add coolant as required. X Screw cap : back on and tighten it. For more information on coolant, see the “Technical data” section (Y page 297) and (Y page 300).

Washer system and headlamp cleaning system G Warning! Washer solvent/antifreeze is highly flammable. Do not spill washer solvent/ antifreeze on hot engine parts, because it may ignite and burn. You could be seriously burned.

! Always use washer solvent/antifreeze

where temperatures may fall below freezing point. Failure to do so could result in damage to the washer system/fluid reservoir.

! Only use washer fluid which is suitable for plastic lenses. Improper washer fluid can damage the plastic lenses of the headlamps.

! Do not use distilled or deionized water in the washer fluid reservoir. Otherwise, the washer fluid level sensor could be damaged.

Fluid for the washer system and the headlamp cleaning system is supplied from the washer fluid reservoir. During all seasons, use MB Windshield Washer Concentrate “MB SummerFit”. Mix it with water or premixed washer solvent/ antifreeze depending on the ambient temperature (Y page 302).

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X Opening washer fluid reservoir: Pull tab

of cap : upwards.

X Refill the washer fluid reservoir. X Closing washer fluid reservoir: Press cap : onto filler hole until it engages.

For more information, see “Washer system and headlamp cleaning system” (Y page 297).

Brake fluid level ! If you find that the brake fluid in the brake

fluid reservoir has fallen to the minimum mark or below, have the brake system checked for brake pad thickness and leaks immediately. Contact an authorized Mercedes-Benz Center immediately. Do not add brake fluid as this will not solve the problem. For more information, see “Practical hints”.

When checking the brake fluid level, the vehicle must be parked on level ground.

The brake fluid level is correct when it is between lower mark (MIN) ; and upper mark (MAX) : of the brake fluid reservoir.

Tires and wheels Safety notes Contact an authorized Mercedes-Benz Center for information on tested and recommended rims and tires for summer and winter operation. They can also offer advice concerning tire service and purchase. G Warning! Replace rims or tires with the same designation, manufacturer and type as shown on the original part. For further information contact an authorized Mercedes-Benz Center. If incorrectly sized rims and tires are mounted, the wheel brakes or suspension components can be damaged. Also, the operating clearance of the wheels and the tires may no longer be correct. G Warning! Worn, old tires can cause accidents. If the tire tread is worn to minimum tread depth, or if the tires have sustained damage, replace them. When replacing rims, only use genuine Mercedes-Benz wheel bolts specified for the particular rim type. Failure to do so can result in the bolts loosening and possibly an accident. Retreaded tires are not tested or recommended by Mercedes-Benz, since previous damage cannot always be recognized on retreads. The operating safety of the vehicle cannot be assured when such tires are used. G Warning! If you feel a sudden significant vibration or ride disturbance, or you suspect that possible damage to your vehicle has occurred, you

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should turn on the hazard warning flashers, carefully slow down, and drive with caution to an area which is a safe distance from the road. Inspect the tires and the vehicle underbody for possible damage. If the vehicle or tires appear unsafe, have the vehicle towed to the nearest authorized Mercedes-Benz Center or tire dealer for repairs. G Warning! Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You could lose control of the vehicle. Continued driving with a flat tire or driving at high speed with a flat tire will cause excessive heat build- up and possibly a fire.

Important guidelines ROnly use sets of tires and rims of the same

type and make.

RTires must be of the correct size for the rim. RBreak in new tires for approximately

60 miles (100 km) at moderate speeds.

RRegularly check the tires and rims for

damage. Dented or bent rims can cause tire inflation pressure loss and damage to the tire beads.

RIf the vehicle is heavily loaded, check tire inflation pressure and correct as required. RDo not allow your tires to wear down too far. Adhesion properties on wet roads are sharply reduced at tread depths of less than 1/8 in (3 mm).

RWhen replacing individual tires, you should mount new tires on the front wheels first (on vehicles with same-sized wheels all around).

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Recommended tire inflation pressure G Warning! Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated. Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes etc. Do not overload the tires by exceeding the specified load limit as indicated on the Tire and Loading Information placard on the driver’s door B-pillar. Overloading the tires can overheat them, possibly causing a blowout. Overloading the tires can also result in handling or steering problems, or brake failure. Your vehicle is equipped with the Tire and Loading Information placard located on the driver’s door B-pillar (Y page 193). The tire inflation pressure should be checked regularly. Only adjust the tire inflation pressure on cold tires. The tires can be considered cold if the vehicle has been parked for at least 3 hours or driven less than 1 mile (1.6 km). Depending on the ambient temperature, the driving speed and the tire load, the tire temperature changes. When the tire temperature changes by 18‡ (10†), the tire inflation pressure will change by approximately 1.5 psi (0.1 bar). Keep this in mind when checking tire inflation pressure on warm tires and adjust the tire pressure only if the tire inflation pressure is too low for the current operating conditions. If you check the tire inflation pressure when the tires are warm, the reading will be higher than the cold reading. This is normal. Do not let air out to match the specified cold tire inflation

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pressure. Otherwise, the tire will be underinflated. Follow recommended cold tire inflation pressures listed on Tire and Loading Information placard on the driver’s door B-pillar. Keeping the tires properly inflated provides the best handling, tread life and riding comfort. In addition to the Tire and Loading Information placard on the driver’s door B-pillar, also consult the tire inflation pressure label on the inside of the filler flap for any additional information pertaining to special driving situations. For more information, see “Important notes on tire inflation pressure” (Y page 184). i Data shown on Tire and Loading

Information placard example are for illustration purposes only. Tire data are specific to each vehicle and may vary from data shown in the following illustration. Refer to Tire and Loading Information placard on vehicle for actual data specific to your vehicle.

The Tire and Loading Information placard lists the recommended cold tire inflation pressures : for maximum loaded vehicle weight. The tire inflation pressures listed apply to the tires installed as original equipment.

Important notes on tire inflation pressure G Warning! If the tire inflation pressure drops repeatedly, check the tires for punctures from foreign objects and/or whether air is leaking from the valves or from around the rim. Tire temperature and tire inflation pressure are also increased while driving, depending on the driving speed and the tire load. If you will be driving your vehicle at high speeds of 100 mph (160 km/h) or higher, where it is legal and conditions allow, consult the tire inflation pressure label on the inside of the fuel filler flap on how to adjust the cold tire inflation pressure. If you do not adjust the tire inflation pressure, excessive heat can build up and result in sudden tire failure. If you are not sure about the proper tire inflation, contact an authorized Mercedes- Benz Center. i Driving comfort may be reduced when the

tire inflation pressure is adjusted to the value for speeds above 100 mph (160 km/h) as specified on the tire inflation pressure label located on the inside of the fuel filler flap.

Make sure to readjust the tire inflation pressure for normal driving speeds. Supplemental tire inflation pressure information for different loading conditions of the vehicle can be found on the tire inflation pressure label. The tire inflation pressure label is located on the inside of the fuel filler flap. For the tire inflation pressure for spare wheels such as Minispare wheels or spare wheels with collapsible tire refer to Rthe yellow label on the spare wheel rim Rthe “Technical data” section of this

Operator’s Manual (Y page 296)

Rthe Tire and Loading Information placard on

the driver’s door B-pillar

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Unless specified otherwise, the tire inflation pressures on the tire inflation pressure label are valid for all approved, factory-equipped tires. When a tire size is specified, the tire inflation pressure that follows applies to that particular tire size only. i Data shown on tire inflation pressure

label examples are for illustration purposes only. Tire inflation pressure data are specific to each vehicle and may vary from data shown in the following illustrations. Refer to the tire inflation pressure label on vehicle for actual data specific to your vehicle.

Example illustration: Tire inflation pressures for all approved, factory equipped tires Some tire inflation pressure labels may only show the rim diameter instead of the entire tire size, e.g. R 18 or 18". The rim diameter is part of the tire size as specified on the tire sidewall (Y page 202).

Example illustration: Tire inflation pressures specific to rim diameter

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Potential problems associated with underinflated and overinflated tires Underinflated tires G Warning! Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated. Underinflated tires can Rcause excessive and uneven tire wear Radversely affect fuel economy Rlead to tire failure from being overheated Radversely affect handling characteristics

Overinflated tires G Warning! Follow recommended tire inflation pressures. Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes etc. Overinflated tires can Radversely affect handling characteristics Rcause uneven tire wear Rbe more prone to damage from road

hazards

Radversely affect ride comfort Rincrease stopping distance

Checking tire inflation pressure Safety notes G Warning! Follow recommended tire inflation pressures.

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Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated. Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes etc. Do not overload the tires by exceeding the specified load limit as indicated on the Tire and Loading Information placard on the driver’s door B-pillar. Overloading the tires can overheat them, possibly causing a blowout. Overloading the tires can also result in handling or steering problems, or brake failure. Check the tire inflation pressure at least once a month. Check and adjust the tire inflation pressure when the tires are cold (Y page 183).

Checking tire inflation pressure manually Follow the steps below to achieve correct tire inflation pressure: X Remove the cap from the valve on one tire. X Firmly press a tire gauge onto the valve. X Read the tire inflation pressure on the tire

gauge and check against the recommended tire inflation pressure on the Tire and Loading Information placard on the driver’s door B-pillar (Y page 193). If necessary, add air to achieve the recommended tire inflation pressure.

X If you have overfilled the tire, release tire

inflation pressure by pushing the metal stem of the valve with e.g. a tip of a pen. Then recheck the tire inflation pressure with the tire gauge. X Install the valve cap. X Repeat this procedure for each tire.

Tire pressure loss warning system (Canada only) While the vehicle is being driven, the tire pressure loss warning system monitors the set tire inflation pressures by evaluating each wheel’s rotational speed. This allows the system to detect a significant loss of pressure in a tire. If a wheel’s rotational speed changes due to falling tire inflation pressure, you will see a corresponding warning message in the multifunction display. The tire pressure loss warning system may function in a restricted manner or with a delay Rwhen snow chains are mounted to the

vehicle

Rin the presence of ice and snow Rwhen you are driving on a loose surface

(e.g. sand or gravel)

Rwhen you are driving in a very sporty

manner (involving rapid acceleration or high speeds in curves)

Rwhen you are driving with a loaded roof

rack or heavily laden vehicle G Warning! When the multifunction display shows the message Tire Pressure Check Tires, one or more of your tires are significantly underinflated. You should stop and check your tires as soon as possible, and inflate them to the proper tire inflation pressure as indicated on the vehicle’s Tire and Loading Information placard or on the tire inflation pressure label. Driving on a significantly underinflated tire causes the tire to overheat and can lead to tire failure. Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability.

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Each tire, including the spare, should be checked at least once a month when cold. Inflate the tires to the recommended tire inflation pressure as specified on Rthe Tire and Loading Information placard on

the driver’s door B-pillar or

Rthe tire inflation pressure label located on

the inside of the fuel filler flap

i The recommended tire inflation pressures

for your vehicle can be found on Rthe Tire and Loading Information placard

located on the driver’s door B-pillar (Y page 193)

Rthe tire inflation pressure label on the

inside of the fuel filler flap

The tire inflation pressures are not listed in the Operator’s Manual. G Warning! The tire pressure loss warning system does not provide a warning for wrongly selected tire inflation pressures. Always adjust tire inflation pressure according to the Tire and Loading Information placard on the driver’s door B-pillar or on the tire inflation pressure label located on the inside of the fuel filler flap. The tire pressure loss warning system does not replace regular checks of the tire inflation pressures since a gradual pressure loss in more than one tire cannot be detected by the tire pressure loss warning system. The tire pressure loss warning system is not able to issue a warning due to a sudden dramatic loss of tire inflation pressure (e.g. tire blowout caused by a foreign object). In this case bring the vehicle to a halt by carefully applying the brakes and avoiding abrupt steering maneuvers.

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Restarting the tire pressure loss warning system The tire pressure loss warning system must be restarted in the following situations: Rafter you have changed the tire inflation

pressure

Rafter you have replaced the wheels or tires Rafter you have installed new wheels or tires X Using the Tire and Loading Information placard on the driver’s door B-pillar or, if available, the tire inflation pressure label on the inside of the fuel filler flap, make sure the tire inflation pressure of all four tires is correct. G Warning! The tire pressure loss warning system can only warn you in a reliable manner if you have set the correct tire inflation pressures for each tire. If an incorrect tire inflation pressure was set, the system will monitor the pressure according to the incorrect value.

X Switch on the ignition. X Make sure the standard display appears in

the multifunction display (Y page 112).

X Press button * or & on the

multifunction steering wheel repeatedly until the following message appears in the multifunction display: Run Flat Indicator Active Menu: R-Button X Press the reset button (Y page 109).

The following message will appear in the multifunction display: Restart Run Flat Indicator? X If you wish to confirm: Press button

W. The following message will appear in the multifunction display: Run Flat Indicator Restarted

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After a certain “learning phase”, the tire pressure loss warning system checks the set pressure values for all four tires.

X If you wish to cancel: Press button X.

Tire Pressure Monitoring System (TPMS), (USA only) Your vehicle is equipped with a Tire Pressure Monitoring System (TPMS). It measures the tire inflation pressure in the vehicle’s tires and issues warnings in case of pressure loss. The Tire Pressure Monitoring System (TPMS) is equipped with a combination low tire pressure/TPMS malfunction telltale in the instrument cluster. Depending on how the telltale illuminates, it indicates a low tire pressure condition or a malfunction in the TPMS system itself: RIf the telltale illuminates continuously, one

or more of your tires are significantly underinflated. There is no malfunction in the TPMS.

RIf the telltale flashes for 60 seconds and then stays illuminated, the TPMS system itself is not operating properly.

The TPMS only functions on wheels that are equipped with the proper electronic sensors. It monitors the tire inflation pressure, as selected by the driver, in all four tires. A warning is issued to alert you to a decrease in pressure in one or more of the tires. G Warning! The TPMS does not indicate a warning for wrongly selected inflation pressures. Always adjust tire inflation pressure according to the Tire and Loading Information placard or the supplemental tire inflation pressure information on the inside of the fuel filler flap. The TPMS is not able to issue a warning due to a sudden dramatic loss of pressure (e.g. tire blowout caused by a foreign object). In this case bring the vehicle to a halt by carefully applying the brakes and avoiding abrupt steering maneuvers.

G Warning! Each tire, including the spare (if provided), should be checked at least once a month when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the Tire and Loading Information placard on the driver’s door B- pillar or the tire inflation pressure label on the inside of the fuel filler flap. If your vehicle has tires of a different size than the size indicated on the Tire and Loading Information placard or the tire inflation pressure label, you should determine the proper tire inflation pressure for those tires. As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pressure telltale when one or more of your tires are significantly underinflated. Accordingly, when the low tire pressure telltale illuminates, you should stop and check your tires as soon as possible, and inflate them to the proper pressure. Driving on a significantly underinflated tire causes the tire to overheat and can lead to tire failure. Underinflation also reduces fuel efficiency and tire tread life, and may affect the vehicle’s handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver’s responsibility to maintain correct tire pressure, even if underinflation has not reached the level to trigger illumination of the TPMS low tire pressure telltale. Your vehicle has also been equipped with a TPMS malfunction indicator to indicate when the system is not operating properly. The TPMS malfunction indicator is combined with the low tire pressure telltale. When the system detects a malfunction, the telltale will flash for approximately 1 minute and then remain continuously illuminated. This sequence will continue upon subsequent vehicle start-ups as long as the malfunction exists. When the malfunction indicator is

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illuminated, the system may not be able to detect or signal low tire pressure as intended. TPMS malfunctions may occur for a variety of reasons, including the installation of incompatible replacement or alternate tires or wheels on the vehicle that prevent the TPMS from functioning properly. Always check the TPMS malfunction telltale after replacing one or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly.

i If a condition causing the TPMS to

malfunction develops, it may take up to 10 minutes for the system to signal a malfunction using the TPMS telltale flashing and illumination sequence. The telltale extinguishes after a few minutes driving if the malfunction has been corrected.

i Operating radio transmission equipment (e.g. wireless headsets, two-way radios) in or near the vehicle could cause the TPMS to malfunction.

i This device complies with Part 15 of the

FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful

2.

interference, and this device must accept any interference received, including interference that may cause undesired.

Any unauthorized modification to this device could void the user’s authority to operate the equipment.

Tire inflation pressure warnings If the system detects a significant loss of tire inflation pressure in one or more than one tire, a message appears in the multifunction display. In addition, an acoustic warning sounds and the low tire pressure telltale in the instrument cluster comes on.

Example illustration Restarting the TPMS G Warning! It is the driver’s responsibility to set the tire inflation pressure to the recommended cold tire inflation pressure. Underinflated tires affect the ability to steer or brake the vehicle. You might lose control over the vehicle. When you restart the TPMS, the system sets new reference values for each tire. The TPMS must be restarted when you have adjusted the tire inflation pressure to a new level (e.g. because of different load or driving conditions). The TPMS is then recalibrated to the current tire inflation pressures. Restart the TPMS after adjusting the tire inflation pressure to the inflation pressure recommended for the vehicle operating condition. Tire inflation pressure should only be adjusted on cold tires. Observe the recommended tire inflation pressure on the Tire and Loading Information placard on the driver’s door B-pillar. Some vehicles may have supplemental tire inflation pressure information for driving at high speeds or for vehicle loads less than the maximum loaded vehicle condition. If such information is provided, it can be found on the inside of the fuel filler flap. X Using the Tire and Loading Information

placard on the driver’s door B-pillar (Y page 193) or, if available, the supplemental tire inflation pressure information on the inside of the fuel filler flap, make sure the tire inflation pressure of all four tires is correct.

X Switch on the ignition.

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