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A Neutral
Do not shift the transmission to N while driving. The transmission could otherwise be damaged. No power is transmitted from the engine to the drive wheels. Releasing the brakes will allow you to move the vehicle freely, e.g. to push it or tow it. If ESP® is deactivated or faulty: only shift the transmission to position N if the vehicle is in danger of skidding, e.g. on icy roads. ! Rolling in neutral N can damage
the drive train.
7 Drive
The automatic transmission changes gear automatically. All forward gears are available.
Changing gear The automatic transmission shifts to the individual gears automatically when it is in transmission position D. This automatic gearshifting behavior is determined by: Ra shift range restriction, if selected Rthe selected drive program
E/S or M (AMG vehicles) (Y page 156)
Rthe position of the accelerator pedal Rthe road speed
Driving tips AMG vehicles When shifting down, the double-clutch function is active regardless of the currently selected drive program. The double-clutch function reduces load change reactions and is conducive to a sporty driving style. The sound generated by the double-clutch
156 Automatic transmission
function depends on the drive program selected.
Kickdown Use kickdown for maximum acceleration. X Vehicles for USA except AMG vehicles:
fully depress the accelerator pedal. The transmission shifts to a lower gear depending on the engine speed.
X Vehicles for Canada except AMG
vehicles: depress the accelerator pedal beyond the pressure point. The transmission shifts to a lower gear depending on the engine speed.
Rocking the vehicle free Rocking the vehicle free by shifting back and forth between transmission positions D and R can help to free a vehicle that has become stuck in mud or snow. The engine management system of the vehicle limits shifting back and forth between transmission positions D and R to a maximum speed of 5 mph (9 km/h). To shift back and forth between transmission positions D and R, move the selector lever up and down beyond the pressure point.
Working on the vehicle G WARNING When working on the vehicle, engage the parking brake and shift the automatic transmission into park position P. Otherwise the vehicle could roll away which could result in an accident and/or serious personal injury.
Program selector button General information The program selector button allows you to choose between different driving characteristics.
Program selector button on all models except AMG vehicles E Economy
Comfortable, economical driving Sporty driving style
S Sport
i For further information on the automatic
drive program, see (Y page 157). X Press program selector button :
repeatedly until the letter for the desired gearshift program appears in the multifunction display.
i The automatic transmission shifts to
automatic drive program E each time the engine is started.
AMG vehicles
Drive program selector with manual drive program C Controlled Efficiency S Sport
Comfortable, economical driving Sporty driving style
S+ SportPlus
M Manual RS RACE START
Extremely sporty driving style Manual gearshifting Optimal vehicle acceleration from a standstill
i For further information on the automatic
drive program, see (Y page 157).
Only change from automatic drive program C, S or S+ to manual drive program M when the vehicle is stationary. X Turn drive program selector : until the
desired drive program appears in the multifunction display in the speedometer. The drive program indicator on drive program selector : lights up in red.
i The automatic transmission shifts to
automatic drive program C each time the engine is started.
i RS cannot be selected during normal driving. For further information on RACE START, see (Y page 188).
Steering wheel paddle shifters
: Left-hand steering wheel paddle shifter ; Right-hand steering wheel paddle shifter You can restrict or derestrict the shift range by using the steering wheel paddle shifters. You can change gear yourself by using the
Automatic transmission 157
steering wheel paddle shifters in the manual drive program. In the automatic drive program, you can restrict or derestrict the shift range by using the steering wheel paddle shifters (Y page 157). i You can only change gear with the
steering wheel paddle shifters when the transmission is in position D.
Automatic drive program Drive program E (drive program C on AMG vehicles) is characterized by the following: Rthe vehicle pulling away more gently in forward and reverse gears, unless the accelerator pedal is depressed fully
Rincreased sensitivity. This improves driving
stability on slippery road surfaces, for example
Rthe automatic transmission shifting up sooner. This results in the vehicle being driven at lower engine speeds and the wheels being less likely to spin
Drive program S (drive programs S and S+ on AMG vehicles) is characterized by the following: Rsporty engine and automatic transmission
settings
Rthe vehicle pulling away in first gear Rthe automatic transmission shifting up
later
Rthe fuel consumption possibly being higher
as a result of the later automatic transmission shift points
Shift ranges Introduction When the automatic transmission is in position D, it is possible to restrict or derestrict the shift range (Y page 157). The shift range selected is shown in the multifunction display. The automatic
158 Automatic transmission
transmission shifts only as far as the selected gear. Shift range = You can use the engine's braking
effect.
Clearing the shift range restriction X Pull and hold the right-hand steering wheel paddle shifter until D is shown again in the multifunction display. The automatic transmission shifts from the current shift range directly to D.
5 To use the braking effect of the
engine on downhill gradients and for driving: Ron steep mountain roads Rin mountainous terrain Rin arduous conditions
4 To use the braking effect of the
engine on extremely steep downhill gradients and on long downhill stretches
Restricting the shift range X Pull the left-hand steering wheel paddle
shifter. The automatic transmission shifts down one gear and restricts the shift range to the relevant gear.
i If the engine exceeds the maximum engine speed when shifting down, the automatic transmission protects against engine damage by not shifting down.
i If the maximum engine speed for the shift
range is reached and you continue to accelerate, the automatic transmission shifts up in order to prevent the engine from overrevving, even if the shift range is restricted.
Derestricting the shift range X Pull the right-hand steering wheel paddle
shifter. The shift range is derestricted.
Selecting the ideal shift range X Pull the left-hand steering wheel paddle
shifter and hold it in position. The automatic transmission shifts to the gear which allows optimum acceleration and deceleration. To do this, the automatic transmission shifts down one or more gears.
Manual drive program Switching on the manual drive program The manual drive program is only available for AMG vehicles. Manual drive program M is different from drive programs S and S+ with regard to spontaneity, responsiveness and smoothness of gear changes. Manual drive program M can be selected using the drive program selector. In manual drive program M, you can change gear yourself using the steering wheel paddle shifters if the transmission is in position D. The gear currently selected and engaged is shown in the multifunction display. X Turn the drive program selector
(Y page 156) until M appears in the multifunction display. The indicator M on the drive program selector lights up in red.
Upshifting ! In manual drive program M, the automatic
transmission does not shift up automatically even when the engine limiting speed for the current gear is
Automatic transmission 159
reached. When the engine limiting speed is reached, the fuel supply is cut to prevent the engine from overrevving. Always make sure that the engine speed does not reach the red area of the tachometer. There is otherwise a risk of engine damage.
X Pull the right-hand steering wheel paddle
shifter (Y page 157). The automatic transmission shifts up to the next gear.
Before the engine speed reaches the red area, an upshift indicator appears in the multifunction display.
: Gear indicator ; Upshift indicator
Downshifting X Pull the left-hand steering wheel paddle
shifter (Y page 157). The automatic transmission shifts down to the next gear.
i If you brake the vehicle or stop without shifting down, the automatic transmission will shift down to a gear that will allow the vehicle to accelerate or pull away again.
Kickdown i Kickdown is not possible in manual drive
program M.
Switching off the manual drive program X Turn the drive program selector
(Y page 156) until C, S or S+ appears in the multifunction display.
160 Refueling
Problems with the transmission Problem The transmission has problems shifting gear.
Possible causes/consequences and M Solutions The transmission is losing oil. X Have the transmission checked at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz Center, immediately.
The acceleration ability is deteriorating. The transmission no longer changes gear.
The transmission is in emergency mode. It is only possible to shift into second gear and reverse gear. X Stop the vehicle. X Shift the transmission to position P. X Switch off the engine. X Wait at least 10 seconds before restarting the engine. X Shift the transmission to position D or R.
If D is selected, the transmission shifts into second gear; if R is selected, the transmission shifts into reverse gear.
X Have the transmission checked at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz Center, immediately.
Transfer case This section is only valid for vehicles with 4- wheel drive (4MATIC). Power is always transmitted to both axles. ! Performance tests may only be carried out on a 2-axle dynamometer. The brake system or transfer case could otherwise be damaged. Contact a qualified specialist workshop for a performance test. Mercedes-Benz recommends that you use an authorized Mercedes-Benz Center for this purpose.
! To prevent ESP® from intervening, the
ignition must be switched off (SmartKey or the Start/Stop button in position 0 or 1) if: Rthe parking brake is being tested on a
brake dynamometer.
Rthe vehicle is being towed with only one
axle raised (not permitted for vehicles with 4MATIC).
The brake system could otherwise be damaged.
Refueling Important safety notes G WARNING Gasoline and diesel fuels are highly flammable and poisonous. They burn violently and can cause serious injury. Never allow sparks, flames or smoking materials near gasoline or diesel fuel! Turn off the engine before refueling. Whenever you are around gasoline or diesel fuel, 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.
Refueling 161
G WARNING Overfilling of the fuel tank may create pressure in the system which could cause a gas discharge. This could cause the gasoline to spray back out when removing the fuel pump nozzle, which could cause personal injury. G WARNING Do not fill diesel tanks with gasoline. Do not mix diesel fuel with gasoline. Otherwise the fuel system and engine could be damaged. In addition, the vehicle could catch fire.
! Do not use gasoline to refuel vehicles with a diesel engine. Do not use diesel to refuel vehicles with a gasoline engine. Even a small quantity of the wrong fuel will damage the fuel system and engine. ! Do not switch on the ignition if you
accidentally refuel with the wrong fuel. Otherwise, the fuel will enter the fuel lines. Notify a qualified specialist workshop and have the fuel tank and fuel lines drained completely.
Gasoline Fuel grade ! You should only refuel with unleaded premium-grade gasoline as this avoids damaging the catalytic converter. If engine running problems are apparent, have the cause checked immediately and repaired. Excess unburned fuel can otherwise enter the catalytic converter, leading to overheating and possibly causing a fire.
! Use a filter when refueling from a fuel can. Otherwise, the fuel lines and/or injection system could be blocked by particles from the fuel can.
i Only refuel with premium-grade unleaded gasoline with a specified minimum octane
number of 91 (average value of 96 RON/ 86 MON). You will usually find information about the fuel grade on the pump. If you cannot find the label on the pump, ask the staff for assistance. You can find more information under "Fuel" (Y page 385), or by contacting an authorized Mercedes-Benz Service Center or visiting http://www.mbusa.com (USA only).
Diesel Fuel grade ! Only refuel with ULTRA-LOW SULFUR DIESEL FUEL (ULSD, 15 ppm SULFUR MAXIMUM). Using other diesel fuels could result in increased wear and damage to the engine and/or exhaust system. Never refuel with marine diesel or heating oil. Do not mix these fuels with diesel fuels and do not use any special additives, as this may result in damage.
! Use a filter when adding fuel from a fuel can. Otherwise, the fuel lines and/or the fuel injection system could be blocked by particles from the fuel can.
i Usually, you will find information about the fuel grade on the pump. If you cannot find the label on the gasoline pump, ask the gas station staff. You can find more information under “Fuel” (Y page 385), or by contacting an authorized Mercedes-Benz Service Center or visiting http://www.mbusa.com (USA only).
Low outside temperatures ! Do not use gasoline to refuel vehicles with
a diesel engine. Never mix diesel with gasoline or kerosene, as this may result in damage to the engine or fuel system.
162 Refueling
Diesel fuel with improved cold flow properties is available during the winter months. Further information on fuel properties can be obtained from oil companies, e.g. at gas stations.
SmartKey. The driver’s door can be closed again.
X Press the fuel filler flap in the direction of
arrow :. The fuel filler flap opens slightly.
Refueling Fuel filler flap The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or using KEYLESS- GO. The position of the fuel filler cap is displayed in the instrument cluster 8. The arrow next to the filling pump indicates the side of the vehicle.
Example: Sedan : To open the fuel filler flap ; To insert the fuel filler cap = Tire pressure table ? Fuel type
Opening X Switch off the engine. X Remove the SmartKey from the ignition
lock. KEYLESS-GO: open the driver’s door. This switches the ignition to position 0, which corresponds to having removed the
X Open the fuel filler flap. X Turn the fuel filler cap counter-clockwise
and remove it.
X Sedan: insert the fuel filler cap into the
bracket on the inside of fuel filler flap ;.
or X Wagon: insert the fuel filler cap into the recesses in the fuel filler flap hinge arm horizontally from above.
X Completely insert the pump nozzle into the
filler neck and refuel.
X Only fill the tank until the pump nozzle
switches off.
! Overfilling the fuel tank could damage the
fuel system.
Closing X Replace the fuel filler cap and turn it clockwise. The fuel filler cap audibly engages.
X Press the fuel filler flap closed until it
engages audibly.
i If you drive with the fuel filler cap open, reserve fuel warning lamp 8 flashes. In addition, the ; Check Engine warning lamp may light up. A message appears in the multifunction display (Y page 248). For further information on warning and indicator lamps in the instrument cluster, see (Y page 267).
i Close the fuel filler flap before locking the vehicle. A locking pin otherwise prevents the fuel filler flap from closing after the vehicle has been locked.
Refueling 163
Fuel filler flap emergency release G WARNING Avoid contact with the vehicle walls as they may contain sharp edges. Otherwise, you could injure yourself while releasing the fuel filler flap.
The emergency release is located in the trunk/cargo compartment behind the side trim on the right-hand side, when viewed in the direction of travel. X Open the trunk lid/tailgate. X Sedan: slide down the parcel net. X Open the side trim. X Remove the first-aid kit (Y page 322).
X Detach the emergency release from
retainer :.
X Pull the emergency release in the direction
of arrow ;. The fuel filler flap is unlocked.
X Open the fuel filler flap. X Wagon: remove the first-aid kit from the
parcel net (Y page 322). Depending on the vehicle's equipment, the first-aid kit is in the parcel net or behind the side trim panel. Open the side trim.
X Fold down the side trim.
X Pull the emergency release in the direction
of arrow :. The fuel filler flap is unlocked.
X Open the fuel filler flap.
164 Refueling
Problems with fuel and the fuel tank Problem Fuel is leaking from the vehicle.
Possible causes/consequences and M Solutions G Risk of explosion or fire The fuel line or the fuel tank is defective. X Turn the SmartKey to position 0(Y page 145) in the ignition lock
immediately and remove it.
The fuel filler flap cannot be opened.
X Do not restart the engine under any circumstances. X Consult a qualified specialist workshop. The fuel filler flap is not unlocked. or The SmartKey battery is discharged. X Unlock the vehicle using the mechanical key (Y page 77). X Open the trunk lid or the tailgate. X Manually unlock the fuel filler flap using the emergency release
(Y page 163).
Refueling 165
Problem
The engine will not start.
Possible causes/consequences and M Solutions The fuel filler flap is unlocked, but the opening mechanism is jammed. X Consult a qualified specialist workshop.
The fuel tank of a vehicle with a diesel engine has been run completely dry. X Refuel the vehicle with at least 5.3 US qt (5 liters) of diesel. X Turn the ignition on for at least 10 seconds (Y page 145). X Start the engine continuously for up to 10 seconds until it runs
smoothly. or
X Start the engine via the touch-start function. To do this, turn the
SmartKey to position 3 (Y page 145) in the ignition lock and then release it immediately.
If the engine does not start: X Turn the ignition on again for approximately 10 seconds
X Start the engine again continuously for up to 10 seconds until
(Y page 145).
it runs smoothly. or
X Start the engine again via the touch-start function. If the engine does not start after three attempts: X Consult a qualified specialist workshop.
DEF Important notes on use To function properly, BlueTEC exhaust gas aftertreatment must be operated with the reducing agent DEF. Adding DEF is one of the tasks performed during maintenance. Under normal operating conditions, a tank of DEF lasts until the next service due date. When the DEF supply has almost run out, the Check Additive See Operator's Manual message is shown in the multifunction display. When the DEF supply sinks to a minimum level, the Remaining Starts: 16 message is shown in the multifunction display.
When the Remaining Starts: 16 message is shown in the multifunction display, you can start the engine 16 more times. If DEF is not added, it is then not possible to start the engine again. Fill the DEF tank with about 1 gal (3.8 l) DEF or have the DEF tank refilled at a qualified specialist workshop. Use the special DEF refill bottle when filling between maintenance intervals. Contact an authorized Mercedes-Benz Center with any questions or, if necessary, contact Roadside Assistance (Y page 23). Further information about BlueTEC exhaust gas aftertreatment and DEF is available at any authorized Mercedes-Benz Center.
166 Refueling
Adding DEF G WARNING Make sure RDEF does not come into contact with skin,
eyes, or clothing
Rto keep DEF out of the reach of children If you and/or others have come into contact with DEF: RIf DEF has gotten into contact with eyes,
flush with plenty of water immediately and seek medical help.
RClean affected skin immediately with plenty
of water.
RIf DEF was swallowed, rinse mouth
immediately with plenty of water and drink plenty of water. Consult a physician. G WARNING If you open the DEF tank cap at high temperatures, ammonia vapors can be released. Ammonia vapors have a pungent odor and are particularly irritating to: Rskin Rmucous membranes Reyes You may experience a burning sensation in your eyes, nose and throat, as well as coughing and watering of the eyes. Do not inhale any ammonia vapors that may be released. Only refill the DEF tank in well ventilated areas.
! Only use DEF that complies with ISO 22241. Do not add any special additives to DEF and do not thin DEF with water. This could destroy the BlueTEC exhaust gas aftertreatment.
If the outside temperature is lower than Ò11 †, damage may occur when topping up. If DEF is frozen and there is an active warning indicator, topping up may not be possible. Park the vehicle in a warmer place, e.g. in a garage, until DEF has become fluid again.
Filling is then possible again. Alternatively, have the DEF tank refilled at a qualified specialist workshop. ! Rinse surfaces that have come into
contact with DEF immediately with water or remove DEF using a damp cloth and cold water. If the DEF has already crystallized, use a sponge and cold water to clean it. DEF residues crystallize after time and contaminate the affected surfaces.
! DEF is not a fuel additive and must not be added to the fuel tank. If DEF is added to the fuel tank, this can lead to engine damage.
i If you are adding between maintenance intervals, add approximately 1 gallon (3.8 l) of DEF to the DEF tank. One gallon (3.8 l) of DEF is approximately 2 DEF refill bottles. Then, have the DEF supply checked and filled completely if necessary. For this purpose, Mercedes-Benz recommends a qualified specialist workshop.
Further information on DEF (Y page 387). The DEF filler neck is under the trunk floor. X Switch off the ignition. X Open the trunk. X Lift up the trunk floor (Y page 286).
X Turn DEF cap : counter-clockwise and
remove it.
Parking 167
X Turn DEF filler cap ; counter-clockwise
and open it. Filler cap ; is secured with a plastic strap.
X Unscrew the covering cap from DEF refill
bottle =.
X Place DEF refill bottle = on the filler neck
as shown and screw on clockwise hand- tight.
! Only screw on the DEF refill bottle hand-
tight. It could otherwise be damaged.
X Press DEF refill bottle = down.
The DEF tank is filled. This may take up to one minute.
i If the DEF refill bottle is no longer pressed
down, the filling process stops and the partially emptied bottle can be removed.
X Release DEF refill bottle =. X Turn DEF refill bottle = counter-clockwise
and remove it.
X Place DEF filler cap ; on the filler neck and
turn it clockwise.
X Insert DEF cap : as shown and turn it
clockwise as far as it will go.
X Fold the trunk floor down. X Close the trunk lid. X Drive at a speed above 10 mph (16 km/h). The Check Additive See Operator's Manual message goes out after approximately one minute. i If the Check Additive See Operator's Manual message remains shown in the multifunction display, add an additional bottle of DEF.
i Then, have the DEF supply checked at a
qualified specialist workshop and completely refilled if necessary.
Parking Important safety notes G WARNING Do not park this vehicle in areas where combustible materials can come into contact with the hot exhaust system. Do not park the vehicle on dry grassland or harvested grain fields. Combustible materials, such as grass, hay or leaves could be ignited by the hot exhaust system and cause a vehicle fire.
168 Parking
Unintended vehicle movement can cause serious personal injury or damage to the vehicle or the vehicle drivetrain. To reduce such risks, always do the following before turning off the engine and leaving the vehicle: Rkeep your right foot on the brake pedal. Rengage the parking brake. Rshift the automatic transmission to park
position P.
Rslowly release the brake pedal. Rwhen parked on an incline, always turn the
front wheels towards the road curb.
Rturn the SmartKey in the ignition lock to
position 0 and remove the SmartKey from the ignition lock, or press the KEYLESS-GO Start/Stop button.
Rtake the SmartKey with you and lock the
vehicle when leaving.
Switching off the engine Important safety notes G WARNING Do not turn off the engine before the vehicle has come to a complete stop. With the engine not running, there is no power assistance for the brake and steering systems. In this case, it is important to keep in mind that a considerably higher degree of effort is necessary to brake and steer the vehicle. G WARNING Keep in mind that turning off the engine alone only will shift the automatic transmission into neutral position N automatically. Always shift the automatic transmission into park position P before turning off the engine. Otherwise the vehicle could roll away which could result in an accident and/or serious personal injury.
Vehicles with manual transmission X Shift to either first gear or reverse gear R. X Turn the SmartKey to position 0 in the
ignition lock and remove it. The immobilizer is activated.
X Apply the parking brake firmly.
Vehicles with automatic transmission X Shift the transmission to position P. Using the SmartKey X Turn the SmartKey to position 0 in the
ignition lock and remove it. The immobilizer is activated.
X Apply the parking brake firmly. i If you turn off the engine with the
SmartKey and then remove it from the ignition lock or open a front door, the automatic transmission shifts to P automatically.
Using KEYLESS-GO X Press the Start/Stop button (Y page 145).
The engine stops and all the indicator lamps in the instrument cluster go out.
X Apply the parking brake firmly. i If you use the Start/Stop button to switch off the engine, the automatic transmission shifts to N automatically. If you then open the driver's or front-passenger door, the automatic transmission shifts to P.
i In an emergency, the engine can be
turned off while the vehicle is in motion by pressing and holding the Start/Stop button for three seconds.
If you have started the engine with the Start/ Stop button and it cannot be switched off as described: X remove the Start/Stop button from the
ignition lock.
X insert the SmartKey into the ignition lock. The engine switches off. The ignition is in position 0.
Parking brake G WARNING Engaging the parking brake while the vehicle is in motion can cause the rear wheels to lock up. You could lose control of the vehicle and cause an accident. In addition, the vehicle's brake lights do not light up when the parking brake is engaged. G WARNING When leaving the vehicle, always remove the SmartKey from the starter switch, take it with you, and lock the vehicle. Do not leave children unattended in the vehicle, or with access to an unlocked vehicle. Children could release the parking brake and/or shift the automatic transmission out of park position P, either of which could result in an accident and/or serious personal injury.
X To apply: depress parking brake ; firmly. When the engine is running, the $ (USA only) or J (Canada only) indicator lamp lights up in the instrument cluster.
X To release: depress the brake pedal and
keep it depressed.
X Pull release handle :.
When the ignition is switched on or the engine is running, the $ (USA only) or J (Canada only) indicator lamp goes out in the instrument cluster.
Driving tips
169
Parking the vehicle for a long period If you leave the vehicle parked for longer than four weeks, the battery may be damaged by exhaustive discharge. X Connect a trickle charger. i You can obtain information about trickle
chargers from a qualified specialist workshop, e.g. an authorized Mercedes- Benz Center.
If you leave the vehicle parked for longer than six weeks, the vehicle may suffer damage as a result of lack of use. X Visit a qualified specialist workshop and
seek advice.
Driving tips General driving tips Important safety notes G WARNING Always remember that you must concentrate primarily on driving the vehicle. The driver's concentration must always be directed primarily at road traffic. For your own safety and that of others, we recommend that you stop the vehicle at a safe place and in accordance with the traffic conditions before making or accepting a phone call. Comply with all legal requirements if you use the telephone while driving. Use the hands- free system and only use the telephone when road, weather and traffic conditions permit. In some jurisdictions, it is forbidden for drivers to use mobile phones while driving. Only operate the audio system or COMAND (Cockpit Management and Data System) in compliance with all legal requirements and when the road, weather and traffic conditions permit. You may otherwise not be able to observe the traffic conditions, endangering yourself and others. Remember that your vehicle covers a distance of 44 feet (approximately 14 m) a second
170 Driving tips
when it is traveling at only 30 mph (approximately 50 km/h).
Drive sensibly – save fuel Observe the following tips to save fuel: X The tires should always be inflated to the
recommended tire pressure. X Remove unnecessary loads. X Remove roof racks when they are not
needed.
X Warm up the engine at low engine speeds. X Avoid frequent acceleration or braking. X Have all maintenance work carried out as
indicated by the service intervals in the Service Booklet or by the service interval display.
Fuel consumption also increases when driving in cold weather, in stop-and-go traffic and in mountainous terrain.
Drinking and driving G WARNING Drinking and driving and/or taking drugs and driving are very dangerous combinations. Even a small amount of alcohol or drugs can affect your reflexes, perceptions and judgment. The possibility of a serious or even fatal accident are greatly increased when you drink or take drugs and drive. Do not drink or take drugs and drive or allow anyone to drive who has been drinking or taking drugs.
Pedals G WARNING Make sure absolutely no objects are obstructing the pedals' range of movement. Keep the driver's footwell clear of all obstacles. If there are any floormats or carpets in the footwell, make sure that the pedals still have sufficient clearance.
During sudden driving or braking maneuvers, the objects could get caught between the pedals. You could then no longer brake or accelerate. This could lead to accidents and injury.
Rolling with the engine switched off G WARNING There is no power assistance for the steering and the brake when the engine is not running. Steering and braking requires significantly more effort and you could lose control of the vehicle and cause an accident as a result. Do not turn off the engine while the vehicle is in motion.
Exhaust check G WARNING 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. Do not run the engine in confined areas (such as a garage) which are not properly ventilated. If you think that exhaust gas fumes are entering the vehicle while driving, have the cause determined and corrected immediately. If you must drive under these conditions, drive only with at least one window fully open at all times.
Certain engine systems are designed to keep the level of poisonous components in exhaust fumes within legal limits. These systems only work at peak efficiency when they are maintained exactly in accordance with the manufacturer's specifications. For this reason, all work on the engine must be carried out only by qualified and authorized Mercedes-Benz technicians. The engine settings must not be changed in any circumstances. Furthermore, all specific service work must be carried out at regular intervals and in accordance with the
Driving tips
171
Mercedes-Benz service requirements. Details can be found in the Service Booklet.
Engine oil ! Vehicles with a diesel particle filter:
If the vehicle is mostly driven for short distances, it is possible that malfunctions may occur during the automatic cleaning of the diesel particle filter. This can lead to engine damage. Therefore, if you frequently drive short distances, make sure to drive on highways or inter-urban roads for 20
minutes at least every 310 miles (500 km).Brakes Important safety notes G WARNING On slippery road surfaces, never downshift in order to obtain braking action. This could result in drive wheel slip and reduced vehicle control. Your vehicle's ABS will not prevent this type of loss of control. G WARNING Make sure that you do not endanger other road users when you apply the brakes.
Downhill gradients ! On long and steep gradients, you must reduce the load on the brakes by shifting early to a lower gear. This allows you to take advantage of the engine braking effect and helps avoid overheating and excessive wear of the brakes. When you take advantage of the engine braking effect, a drive wheel may not turn for some time, e.g. on a slippery road surface. This could cause damage to the drive train. This type of damage is not covered by the Mercedes-Benz warranty.
Heavy and light loads G WARNING Depressing the brake pedal constantly results in excessive and premature wear to the brake pads. It may also cause the brakes to overheat, seriously impairing their effectiveness. It may then not be possible to stop the vehicle in sufficient time to avoid an accident.
If the brakes have been subjected to a heavy load, do not stop the vehicle immediately, but drive on for a short while. This allows the airflow to cool the brakes more quickly.
Wet roads G WARNING After driving in heavy rain for some time without applying the brakes or through water deep enough to wet brake components, the first braking action may be somewhat reduced. You have to depress the brake pedal more firmly. Maintain a safe distance from vehicles in front.
After driving on a wet road or having the vehicle washed, brake firmly while paying attention to the traffic conditions. This will warm up the brake discs, thereby drying them more quickly and protecting them against corrosion.
Limited braking performance on salt treated roads G WARNING The layer of salt on the brake discs and the brake pads/linings may cause a delay in the braking effect, resulting in a significantly longer braking distance, which could lead to an accident. To avoid this danger, you should: Roccasionally brake carefully, without
putting other road users at risk, when you are driving on salted roads. This helps to
172 Driving tips
remove any salt that may have started to build up on the brake discs and the brake pads/linings.
Rmaintain a greater distance to the vehicle
ahead and drive with particular care.
Rcarefully apply the brakes at the end of a trip and immediately after commencing a new trip, so that salt residues are removed from the brake discs.
Servicing the brakes ! If the red brake warning lamp lights up in
the instrument cluster and you hear a warning tone while the engine is running, the brake fluid level may be too low. Observe additional warning messages in the multifunction display. The brake fluid level may be too low due to brake pad wear or leaking brake lines. Have the brake system checked immediately. This work should be carried out at an authorized Mercedes-Benz Center.
All checks and maintenance work on the brake system must be carried out at a qualified specialist workshop. This work should be carried out at an authorized Mercedes-Benz Center. Have the brake pads replaced and the brake fluid renewed at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center. G WARNING If brake pads or brake fluid other than those recommended are used, the braking properties of the vehicle can be degraded to an extent that safe braking is substantially impaired. This could result in an accident.
! Vehicles with 4MATIC: function or
performance tests may only be carried out on a 2-axle dynamometer. If you are planning to have the vehicle tested on such a dynamometer, contact an authorized Mercedes-Benz Center to obtain further
information first. Otherwise, you could damage the drive train or the brake system.
! Vehicles with 4MATIC: as the ESP®
system operates automatically, the engine and the ignition must be switched off (SmartKey in position 0 or 1 in the ignition lock or Start/Stop button in position 0 or 1) while the parking brake is being tested on a brake dynamometer. Braking maneuvers triggered automatically by ESP® may seriously damage the brake system.
! Vehicles with 4MATIC: as the ESP®
system operates automatically, the engine and the ignition system must be switched off (SmartKey in position 0 or 1 in the ignition lock or Start/Stop button in position 0 or 1) when: Rtesting the parking brake on a brake
dynamometer.
Ryou intend to have the vehicle towed with
one of the axles raised.
Braking maneuvers triggered automatically by ESP® may seriously damage the brake system.
If your brake system is subject only to moderate loads, you should test the functionality of your brakes at regular intervals by pressing firmly on the brake pedal at high speeds. This improves the grip of the brake pads. G WARNING Make sure that you do not endanger other road users when you apply the brakes.
You can find a description of Brake Assist (BAS) on (Y page 64) or of BAS PLUS on (Y page 64).
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AMG high-performance and ceramic brakes G WARNING New vehicle brake pads and discs, and replacement brake pads and discs may take several hundred miles of driving until they provide optimum braking efficiency. Until that time, you may need to use increased brake pedal pressure while braking. Please be aware of this and adjust your driving and braking accordingly during this break-in period. Excessive high-demand braking will cause correspondingly high brake wear. Please be attentive to the brake warning lamp in the instrument cluster and brake condition messages in the multifunction display. Especially for high performance driving, it is important to maintain and have the brake system checked regularly.
The AMG brake systems are designed for heavy loads. This may lead to noise when braking. This will depend on: Rspeed Rbraking force Renvironmental conditions, such as
temperature and humidity
The wear of individual components of the brake system, such as the brake pads/linings or brake discs, depends on the individual driving style and operating conditions. For this reason, it is impossible to state a mileage that will be valid under all circumstances. An aggressive driving style will lead to high wear. You can obtain further information about this from your authorized Mercedes-Benz Center.
Driving on wet roads Hydroplaning If water has accumulated to a certain depth on the road surface, there is a danger of hydroplaning occurring, even if: Ryou drive at low speeds. Rthe tires have adequate tread depth. For this reason, in the event of heavy rain or in conditions in which hydroplaning can occur you must drive in the following manner: Rreduce your speed Ravoid ruts Rbrake carefully
Driving on flooded roads ! Do not drive through flooded areas.
Check the depth of any water before driving through it. Drive slowly through standing water. Otherwise, water may enter the vehicle interior or the engine compartment. This can damage the electronic components in the engine or the automatic transmission. Water can also be drawn in by the engine's air suction nozzles and this can cause engine damage.
Winter driving Important safety notes G WARNING If the vehicle becomes trapped in snow, ensure that snow is kept away from the exhaust pipe and from around the vehicle as long as the engine is running. Otherwise, poisonous carbon monoxide (CO) may enter the vehicle, resulting in loss of consciousness and even death. To assure sufficient fresh air ventilation, open a window slightly on the side of the vehicle not facing the wind.
At the onset of winter, have your vehicle winterproofed at a qualified specialist
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workshop, e.g. at an authorized Mercedes- Benz Center. i Vehicles with a diesel engine: do not
cover the radiator, e.g. with a protective cover. The measuring function of the Onboard Diagnosis System may otherwise provide inaccurate values. Some of these values are required by law and must therefore always be accurate.
Winter tires At temperatures below 45 ‡(+7 †), use winter tires or all-season tires. Both types of tire are identified by the M+S marking. Only winter tires bearing the i snowflake symbol in addition to the M+S marking provide the best possible grip in wintry road conditions. Only these tires will allow driving safety systems such as ABS and ESP® to function optimally in winter, as these tires have been designed specifically for driving on snow. Use M+S tires of the same make and tread on all wheels to maintain safe handling characteristics. G WARNING M+S tires with a tread depth of less than 1/6
inch (4 mm) must be replaced immediately. They are no longer suitable for use in winter.Always observe the maximum permissible speed specified for the M+S tires you have mounted. Once you have mounted the winter tires: X Check the tire pressures (Y page 353). X Restart the tire pressure monitor
(Y page 355). G WARNING If you use your spare wheel when M+S tires are mounted on the other wheels, be aware that the difference in tire characteristics impairs cornering ability and reduces driving stability. Adapt your driving style accordingly.
Have the spare wheel replaced by a normal wheel with an M+S tire at the nearest Mercedes-Benz Center.
Snow chains For safety reasons, Mercedes-Benz recommends that you only use snow chains which have been specially approved for your vehicle by Mercedes-Benz, or are of a corresponding standard of quality. ! On vehicles with AIRMATIC, you must
drive at raised vehicle level if snow chains have been mounted. The vehicle may otherwise be damaged.
! There is not enough space for snow
chains on some wheel sizes. Observe the information under "Tires and wheels" in the "Technical Data" section to avoid damage to the vehicle or the wheels.
ROnly use snow chains when driving on
roads completely covered by snow. Do not exceed the maximum permissible speed of 30 mph (50 km/h). Remove the snow chains as soon as possible when you are no longer driving on snow-covered roads.
RLocal regulations may restrict the use of snow chains. Applicable regulations must be observed if you wish to mount snow chains.
RSnow chains must not be mounted on
emergency spare wheels.
If you intend to mount snow chains, please bear the following points in mind: Ryou may not attach snow chains to all
wheel-tire combinations; see the information under "Wheel and tire combinations" in the "Wheels and tires" section.
Rmount snow chains only in pairs and only
to the rear wheels. Observe the manufacturer's installation instructions.
! If snow chains are mounted on the front
wheels, the snow chains could grind against the bodywork or components of the
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chassis. This could result in damage to the vehicle or the tires.
! Vehicles with steel wheels: if you wish
to mount snow chains on steel wheels, make sure that you remove the respective wheels' hubcaps first. The hubcaps may otherwise be damaged.
i You may wish to deactivate
ESP®(Y page 66) when pulling away with snow chains mounted. This way you can allow the wheels to spin in a controlled manner, achieving an increased driving force (cutting action).
Slippery road surfaces G WARNING The outside temperature indicator is not designed to serve as an ice-warning device and is therefore unsuitable for that purpose. Indicated temperatures just above the freezing point do not guarantee that the road surface is free of ice. The road may still be icy, especially in wooded areas or on bridges. G WARNING On slippery road surfaces, never downshift in order to obtain braking action. This could result in drive wheel slip and reduced vehicle control. Your vehicle's ABS will not prevent this type of loss of control.
Drive particularly carefully on slippery road surfaces. Avoid sudden acceleration, steering and braking maneuvers. Do not use cruise control or DISTRONIC PLUS. If the vehicle threatens to skid or cannot be stopped when moving at low speed: X Shift the transmission to position N. i For more information on driving with
snow chains, see (Y page 174). G WARNING Make sure that you do not endanger other road users when you apply the brakes.
Driving systems Cruise control Important safety notes Cruise control maintains a constant road speed for you. It brakes automatically in order to avoid exceeding the set speed. On long and steep downhill gradients, especially if the vehicle is laden, you must select shift range 1, 2 or 3 in good time. By doing so, you will make use of the braking effect of the engine, which relieves the load on the brake system and prevents the brakes from overheating and wearing too quickly. Use cruise control only if road and traffic conditions make it appropriate to maintain a steady speed for a prolonged period. You can set any road speed above 20 mph (30 km/h). G WARNING The cruise control is a convenience system designed to assist the driver during vehicle operation. The driver is and must always remain responsible for the vehicle's speed and for safe brake operation. Only use the cruise control if the road, traffic, and weather conditions make it advisable to travel at a constant speed. RThe use of the cruise control can be
dangerous on winding roads or in heavy traffic because conditions do not allow safe driving at a constant speed.
RThe use of the cruise control can be dangerous on slippery roads. Rapid changes in tire traction can result in wheel spin and loss of control.
RDeactivate the cruise control when driving
in fog.
The "Resume" function should only be operated if the driver is fully aware of the previously set speed and wishes to resume this particular preset speed.
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G WARNING The cruise control brakes automatically so that the set speed is not exceeded.
Cruise control lever
: To switch on or to increase the speed ; To switch on or to reduce the speed = To deactivate cruise control ? To switch on with the current speed or
with the last stored speed
When you activate cruise control, the stored speed is shown in the multifunction display for five seconds. In the multifunction display, the segments between the stored speed and the maximum speed light up.
Storing and maintaining the current speed You can store the current speed if you are driving faster than 20 mph (30 km/h). X Accelerate the vehicle to the desired
speed.
X Briefly press the cruise control lever
up : or down ;.
X Remove your foot from the accelerator
pedal. Cruise control is activated. The vehicle automatically maintains the speed.
i Cruise control may be unable to maintain the stored speed on uphill gradients. The stored speed is resumed when the gradient evens out. Cruise control maintains the
stored speed on downhill gradients by automatically applying the brakes.
Storing the current speed or calling up the last stored speed G WARNING The set speed stored in memory should only be set again if prevailing road conditions and legal speed limits permit. Possible acceleration or deceleration differences arising from returning to the preset speed could cause an accident and/or serious injury to you and others.
X Briefly pull the cruise control lever towards
you ?.
X Remove your foot from the accelerator
pedal. The first time cruise control is activated, it stores the current speed or regulates the speed of the vehicle to the previously stored speed.
Setting a speed G WARNING Keep in mind that it may take a brief moment until the vehicle has made the necessary adjustments. Increase or decrease the set vehicle speed to a value that the prevailing road conditions and legal speed limits permit. Otherwise, sudden and unexpected acceleration or deceleration of the vehicle could cause an accident and/ or serious injury to you and others.
X Press the cruise control lever up : for a higher speed or down ; for a lower speed. X Keep the cruise control lever pressed until
the desired speed is reached.
X Release the cruise control lever.
The new speed is stored.
i Cruise control is not deactivated if you
depress the accelerator pedal. For example, if you accelerate briefly to
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overtake, cruise control adjusts the vehicle's speed to the last speed stored after you have finished overtaking.
Making adjustments in 1 mph (Canada: 1 km/h) increments X Briefly press the cruise control lever to the pressure point, up : for a higher speed or down ; for a lower speed. The last speed stored is increased or reduced.
Making adjustments in 5 mph (Canada: 10 km/h) increments X Briefly press the cruise control lever
beyond the pressure point, up : for a higher speed or down ; for a lower speed. The last speed stored is increased or reduced.
Deactivating cruise control There are several ways to deactivate cruise control: X Briefly press the cruise control lever
forwards =.
or X Brake. Cruise control is automatically deactivated if: Ryou depress the parking brake. Ryou are driving below 20 mph (30 km/h). RESP® intervenes or you deactivate ESP®. Ryou shift the transmission to position N
while driving. If cruise control is deactivated, you will hear a warning tone. You will see the Cruise Control Off message in the multifunction display for approximately five seconds. i The last speed stored is cleared when you
switch off the engine.
DISTRONIC PLUS Important safety notes DISTRONIC PLUS regulates the speed and automatically helps you maintain the distance to the vehicle detected in front. It brakes automatically in order to avoid exceeding the set speed. On long and steep downhill gradients, especially if the vehicle is laden, you must select shift range 1, 2 or 3 in good time. By doing so, you will make use of the braking effect of the engine, which relieves the load on the brake system and prevents the brakes from overheating and wearing too quickly. If a slower-moving vehicle is detected in front, DISTRONIC PLUS causes your vehicle to brake and maintain a preset distance to the vehicle in front. G WARNING The DISTRONIC PLUS requires familiarity with its operational characteristics. We strongly recommend that you review the following information carefully before operating the system. G WARNING The DISTRONIC PLUS is a convenience system. Its speed adjustment reduction capability is intended to make cruise control more effective and usable when traffic speeds vary. It is not however, intended to, nor does it, replace the need for extreme care. The responsibility for the vehicle's speed, distance to the preceding vehicle and, most importantly, brake operation to ensure a safe stopping distance, always remains with the driver. The DISTRONIC PLUS cannot take street and traffic conditions into account. Complex driving situations are not always fully recognized by the DISTRONIC PLUS. This could result in wrong or missing distance warnings.
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If you want DISTRONIC PLUS to assist you, the radar sensor system must be activated (Y page 229) and operational. If there is no vehicle driving in front of you, DISTRONIC PLUS functions like cruise control at a speed range between 20 mph (Canada: 30 km/h) and 120 mph (Canada: 200 km/h). If a vehicle is driving in front of you, it functions at a speed range between 0 mph (0 km/h) and 120 mph (Canada: 200 km/h). Do not use DISTRONIC PLUS while driving on roads with steep gradients. As DISTRONIC PLUS transmits radar waves, it can resemble the radar detectors of the responsible authorities. You can refer to the applicable section in the Operator's Manual if there are any questions concerning this. i USA only:
This device has been approved by the FCC
