2010 Mercedes-benz C Class Owners Manual

Lamp in center console Problem Canada only: 45
The front passenger front air bag off indicator lamp illuminates and remains illuminated (Y page 47).

Possible causes/consequences and M Solutions A BabySmartTM child seat is installed on the front passenger seat. Therefore the front passenger front air bag is switched off.

The system is malfunctioning when there is no BabySmartTM child seat installed on the front passenger seat. X Have the system checked as soon as possible at an authorized

Mercedes-Benz Center.

2009-07-16T17:54:06+02:00 - Seite 308
Version: 2.11.8.1

Possible causes/consequences and M Solutions The system is malfunctioning. X Make sure there is nothing between seat cushion and child seat. X Check installation of the child seat (Y page 57). If the front passenger front air bag off indicator lamp remains out: X Have the system checked as soon as possible at an authorized

Mercedes-Benz Center.

Do not use the BabySmartTM restraint to transport children on the front passenger seat until the system has been repaired.

The system is malfunctioning. X Have the system checked as soon as possible at an authorized

Mercedes-Benz Center.

X Read and observe messages in the multifunction display and

follow corrective steps (Y page 270).

204_AKB; 5; 23, en-US d2ureepe,

308 What to do if …

Problem Canada only: 45
The front passenger front air bag off indicator lamp does not illuminate or does not remain illuminated with a BabySmartTM child seat properly installed on the passenger seat. USA only: 45
The front passenger front air bag off indicator lamp illuminates and remains illuminated with the weight of a typical adult or someone larger than a small individual on the front passenger seat.

G Warning! If the 45 indicator lamp illuminates and remains illuminated with the weight of a typical adult or someone larger than a small

individual on the front passenger seat, do not have any passenger use the front passenger seat until the system has been repaired.

Problem USA only: 45
The front passenger front air bag off indicator lamp does not illuminate and/or does not remain illuminated with the weight of a typical 12-month-old child in a standard child restraint or less on the front passenger seat.

Possible causes/consequences and M Solutions The system is malfunctioning. X Make sure there is nothing between seat cushion and child seat

and check installation of the child seat.

X Make sure no objects applying supplemental weight onto the

seat are present.

X If the front passenger front air bag off indicator lamp remains

out, have the system checked as soon as possible at an authorized Mercedes-Benz Center. Do not transport a child on the front passenger seat until the system has been repaired. X Read and observe messages in the multifunction display and

follow corrective steps (Y page 270).

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 309
Version: 2.11.8.1

Unlocking/locking manually

309

Unlocking the driver’s door

X Insert mechanical key ; into the driver’s

door lock.

X Turn mechanical key ; counterclockwise

to position 1.

X Pull the door handle to open the driver’s

door.

X Turn mechanical key ; back and remove

it from the driver’s door lock.

Unlocking the trunk A minimum height clearance of 5.9 ft (1.8 m) is required to open the trunk lid.

G Warning! If the 45 indicator lamp does not illuminate or remains out with the weight of a typical 12-month-old child in a standard child restraint or less on the front passenger seat, do not transport a child on the front passenger seat until the system has been repaired.

Unlocking/locking manually Unlocking the vehicle If you cannot unlock the vehicle with the SmartKey or with KEYLESS-GO, unlock the driver’s door and the trunk using the mechanical key. The anti-theft alarm system will trigger when you Runlock the driver’s door or the trunk with

the mechanical key and

Ropen the driver’s door or the trunk To cancel the alarm, insert the SmartKey into the starter switch.

Removing the mechanical key

X Move locking tab : in the direction of

arrow.

X Slide mechanical key ; out of the housing.

X Insert mechanical key ; into the trunk lid

lock.

X Turn mechanical key ; counterclockwise

to position 1.

! When you open the trunk, the trunk lid swings open upwards. Always make sure there is sufficient overhead clearance.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 310
Version: 2.11.8.1

310 Unlocking/locking manually

X Turn mechanical key ; back and remove

it from the trunk lid lock.

Locking the vehicle If you cannot lock the vehicle with the SmartKey or with KEYLESS-GO, lock it as follows: X Open the driver’s door. X Close the front passenger door, the rear

doors, and the trunk.

X Press the central locking switch

(Y page 75). The locking knobs of the front passenger door and the rear doors move down.

X If the vehicle battery is disconnected or drained: Press down the locking knobs on the front passenger door and the rear doors.

X Exit the vehicle. X Close the driver’s door.

X Remove mechanical key ; from the

SmartKey (Y page 309).

X Insert mechanical key ; into the driver’s

door lock.

X Turn mechanical key ; clockwise to

position 1. The vehicle is locked.

X Turn mechanical key ; back and remove

it from the driver’s door lock.

X Check whether the doors and the trunk are

locked.

X If necessary, lock the trunk with the

mechanical key (Y page 77).

i This procedure does not arm the anti-

theft alarm system, nor does it lock the fuel filler flap.

Fuel filler flap 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. In case the central locking system does not release the fuel filler flap, you can open it manually. The fuel filler flap release is located on the passenger side in the trunk behind the cover. X Open the trunk (Y page 75). X Open the fuse box cover in the trunk

(Y page 329).

X Pull fuel filler flap release : in direction of

arrow. The fuel filler flap is unlocked.

X Open the fuel filler flap (Y page 222). X Close the cover. X Close the trunk.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 311
Version: 2.11.8.1

Resetting activated NECK-PRO active front head restraints

311

Manually unlocking the gear selector lever If the vehicle’s electrical system is malfunctioning, the gear selector lever could remain locked in park position P. In this case the gear selector lever can be unlocked manually, e.g. to tow the vehicle. X Engage the parking brake.

! Do not use sharp objects to loosen the

gear selector lever cover in the center console, as this could damage the gear selector lever cover or the center console. X Insert a flat, blunt object into the right edge

of gear selector lever cover : at the positions indicated by the arrows.

X Loosen gear selector lever cover : using

this object.

X Pull gear selector lever cover : out and

remove.

X Simultaneously push down release ; and

move the gear selector lever out of park position P. The gear selector lever is unlocked.

i The gear selector lever is locked again as soon as you move it back to park position P.

Resetting activated NECK-PRO active front head restraints

If the NECK-PRO active front head restraints have been triggered in a rear-end collision, they must be reset. You can tell that the NECK-PRO active front head restraints have been triggered when they have been moved forward and cannot be adjusted. G Warning! For safety reasons, have the NECK-PRO active front head restraints checked at an authorized Mercedes-Benz Center after a rear-end collision. G Warning! When pushing back the head restraint cushion, make sure your fingers do not become caught between the head restraint cushion and the cover. Failing to do so may lead to injury.

i Pressing the head restraint cushion back

requires high force. If you encounter difficulties when pushing the head restraint back, please have the procedure performed at an authorized Mercedes-Benz Center.

X Push the head restraint cushion at the

bottom, back as far as possible ;.

X Push the head restraint cushion down into

the guide =.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 312
Version: 2.11.8.1

312 Replacing SmartKey batteries

X Fold the head restraint cushion by the top,

back firmly until it engages :.

X Repeat this procedure on the NECK-PRO active front head restraint for the second front seat.

For information on NECK-PRO active front head restraints, see “NECK-PRO active front head restraints” (Y page 52). For information on head restraint adjustment, see “Seats” (Y page 79).

Replacing SmartKey batteries

If the batteries in the SmartKey are discharged, the vehicle can no longer be locked or unlocked. It is recommended to have the batteries replaced at an authorized Mercedes-Benz Center. G Warning! Batteries contain poisonous and corrosive substances. Therefore, keep the batteries out of reach of children. If a battery is swallowed, seek medical help immediately. G Warning! SmartKey batteries contain perchlorate material, which may require special handling and regard for the environment. Check with your local government’s disposal guidelines. California residents, see www.dtsc.ca.gov/ HazardousWaste/Perchlorate/ index.cfm. Batteries contain materials that can harm the environment if disposed of improperly. Recycling of batteries is the preferred method of disposal. Many states (USA only) or provinces (Canada only) require sellers of batteries to accept old batteries for recycling. When inserting the batteries, make sure they are clean and free of lint. When replacing batteries, always replace both batteries.

i The required replacement batteries are

available at any authorized Mercedes-Benz Center.

Replacement batteries: Lithium, type CR 2025 or equivalent. X Remove the mechanical key from the

SmartKey (Y page 309).

X Press mechanical key ; into the SmartKey

opening until battery compartment cover : opens. Do not keep the cover shut.

X Remove the battery compartment cover. X Pat the SmartKey against the palm of your

hand until battery = falls out.

X Insert the new battery with the positive

terminal (+) facing up. Use a lint-free cloth. X Insert the tabs of the battery compartment cover into the housing and press the cover closed.

X Check the operation of the SmartKey as

well as the KEYLESS-GO function.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 313
Version: 2.11.8.1

Replacing bulbs

313

Wear eye and hand protection. Because of high voltage in Xenon lamps, it is dangerous to replace the bulb or repair the lamp and its components. We recommend that you have such work done by a qualified technician.

i Since replacing bulbs is a technically

highly demanding process, we recommend to have them replaced at an authorized Mercedes-Benz Center.

i If the headlamps or front fog lamps are fogged up on the inside as a result of high humidity, driving the vehicle a distance with the lights on should clear up the fogging.

Replacing bulbs Safety notes Safe vehicle operation depends on proper exterior lighting and signaling to a large degree. Correct headlamp adjustment is extremely important. Have headlamps checked and readjusted at regular intervals and when a bulb has been replaced. Contact an authorized Mercedes-Benz Center for headlamp adjustment. G Warning! Bulbs and bulb sockets can be very hot. Allow the lamp to cool down before changing a bulb. Keep bulbs out of reach of children. Halogen lamps contain pressurized gas. A bulb can explode if you Rtouch or move it when hot Rdrop the bulb Rscratch the bulb

204_AKB; 5; 23, en-US d2ureepe,

314 Replacing bulbs

Bulbs You can replace the following bulbs yourself: Halogen headlamps

2009-07-16T17:54:06+02:00 - Seite 314
Version: 2.11.8.1

Type : Low-beam lamp: H7 55 W ; Turn signal lamp: 3457A

Bi-Xenon headlamps

Type : Turn signal lamp: Turn signal lamp:

3457A

Rear lamps

Notes on bulb replacement ! Do not replace LEDs or bulbs not described in this section. You could otherwise damage the LEDs, the bulbs or parts of the vehicle. Only have the LEDs and

Type : Passenger side: Tail lamp P 21 W

Driver’s side: Tail lamp and rear fog lamp P 21 W

; Side marker lamp: W 5 W = Turn signal lamp: PY 21 W ? Tail lamp, brake lamp: P 21 W A Tail lamp, brake lamp: P 21 W B Backup lamp: P 21 W

bulbs replaced at an authorized Mercedes- Benz Center.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 315
Version: 2.11.8.1

G Observe Safety notes, see page 313. ROnly use 12-volt bulbs of the same type and with the specified watt rating.

RSwitch the lights off before changing a bulb

to prevent short circuits.

RAlways use a clean lint-free cloth when

handling bulbs.

RYour hands should be dry and free of oil and

grease.

RIf the newly installed bulb does not come on, contact an authorized Mercedes-Benz Center.

i Mercedes-Benz recommends using

Longlife (LL) bulbs.

Replacing bulbs for front lamps X Switch off the ignition. X Turn the exterior lamp switch to position

$.

X Open the hood (Y page 224). G Warning! Do not remove the cover for the Bi-Xenon headlamp. Because of high voltage in Xenon lamps, it is dangerous to replace the bulb or repair the lamp and its components. It is recommended to have such work done by a qualified technician.

Low-beam bulb (halogen headlamps only)

Replacing bulbs

315

X Turn housing cover : counterclockwise

and remove it.

X Pull electric plug ; off the bulb ?. X Remove wire clip = from bulb holder by pushing down and release from arrestor hook.

X Pull bulb ? at its socket out of bulb holder. X Insert the new bulb so that its socket

locates in the recess of bulb holder and is level to it.

X Fold wire clip = back and press it down on

bulb holder to engage it in the arrestor hook.

X Connect electric plug ; on bulb ?. X Align housing cover and turn it clockwise.

Front turn signal lamp bulb

X Turn bulb socket = with handle ;

counterclockwise and remove it. X Pull bulb out of bulb socket =. X Gently press the new bulb into bulb socket

= until the bulb engages.

X Place bulb socket = back into the housing. Handle ; must be in a horizontal line and mark : must be on the upper part (driver’s side headlamp) or lower part (passenger- side headlamp).

X Turn bulb socket = clockwise until it

engages.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 316
Version: 2.11.8.1

316 Replacing wiper blades

Replacing bulbs for rear lamps Before you start to replace a bulb for a rear lamp, do the following: X Switch off the ignition. X Turn the exterior lamp switch to position

$.

X Open the trunk.

Tail lamp unit X Driver’s side: Lift up the bottom and pull out the trim panel covering the driver side rear light.

X Passenger side: Open the fuse box in the

trunk (Y page 329).

A Backup lamp B Tail lamp, brake lamp C Tail lamp, brake lamp, parking and

standing lamp

D Turn signal lamp Side marker lamp X Turn the bulb socket on backside of tail lamp unit counterclockwise and remove side marker lamp = with bulb socket.

X Turn the new bulb with socket on backside of tail lamp unit clockwise until it engages.

Other lamps X Depending on which bulb needs to be

replaced, press gently onto the respective bulb and turn it counterclockwise out of its bulb socket.

X Gently press the new bulb into its bulb

socket and turn it clockwise until it engages.

Reinstall bulb carrier X Reinstall the bulb carrier and let tabs :

(Y page 316) engage.

X Connect the electrical connector ;

(Y page 316) until it engages.

X Reinstall trim panel.

Replacing wiper blades Safety notes G Warning! For safety reasons, switch off the wipers and remove the SmartKey from the starter switch (vehicles with KEYLESS-GO: Make sure the vehicle’s on-board electronics have status 0) before replacing a wiper blade. Otherwise, the wiper motor could suddenly turn on and cause injury.

X Disconnect electrical connector ;. X Pull tabs : in direction of arrows. X Remove the bulb carrier.

Bulb carrier = Side marker lamp ? Rear fog lamp (driver’s side only), side

marker lamp

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 317
Version: 2.11.8.1

Flat tire 317

G Warning! Wiper blades are components that are subject to wear and tear. Replace the wiper blades twice a year, preferably in the spring and fall. Otherwise the windshield will not be wiped properly. As a result, you may not be able to observe surrounding traffic conditions and could cause an accident.

! Never open the hood when a wiper arm is

folded forward. Hold on to the wiper when folding a wiper arm back. If released, the force of the impact from the tensioning spring could crack the windshield. Do not allow a wiper arm to contact the windshield glass without a wiper blade inserted. Mercedes-Benz recommends that you have this work carried out at an authorized Mercedes-Benz Center.

X Remove the SmartKey from the starter

switch.

Vehicles with KEYLESS-GO: X Make sure the vehicle’s on-board

electronics have status 0 (Y page 78).

Removing wiper blades ! Do not pull on the wiper blade inserts.

They could tear.

X Fold the wiper arm forward until it snaps

into place.

X Turn the wiper blade in direction of

arrow :.

X Slide the wiper blade sideways out of the

retainer in the direction of arrow ;.

Installing wiper blades X Slide the wiper blade onto the wiper arm

until it locks in place.

X Rotate the wiper blade into a position

parallel to the wiper arm.

X Fold the wiper arm backward to rest on the

windshield. Make sure you hold on to the wiper when folding the wiper arm back.

! Make sure the wiper blades are installed properly. Improperly installed wiper blades may cause windshield damage.

Flat tire Safety notes G Warning! The dimensions of the spare wheel are different from those of the road wheels. As a result, the vehicle handling characteristics change when driving with a spare wheel mounted. Adapt your driving style accordingly. The spare wheel is for temporary use only. When driving with a spare wheel mounted, ensure proper tire inflation pressure and do

204_AKB; 5; 23, en-US d2ureepe,

318 Flat tire

not exceed a vehicle speed of 50 mph (80 km/h). Contact the nearest authorized Mercedes- Benz Center as soon as possible to have the spare wheel replaced with a regular road wheel. Never operate the vehicle with more than one spare wheel mounted. Do not switch off the ESP® when a spare wheel is mounted.

Preparing the vehicle X Whenever possible, park the vehicle in a

safe distance from moving traffic on a hard, flat surface.

X Turn on the hazard warning flasher. X Turn the steering wheel so that the front wheels are in a straight-ahead position.

X Engage the parking brake. X Shift the automatic transmission into park position P (manual transmission to 1st or reverse gear R).

X Turn off the engine. X Remove the SmartKey from the starter

switch.

or X Vehicles with 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 can then be closed again. Open doors only when conditions are safe to do so.

X Vehicles with KEYLESS-GO: Remove the KEYLESS-GO start/stop button from the starter switch.

X Have any passenger exit the vehicle at a

safe distance from the roadway. Open doors only when conditions are safe to do so.

2009-07-16T17:54:06+02:00 - Seite 318
Version: 2.11.8.1

Mounting the spare wheel Introduction X Prepare the vehicle as described

(Y page 318).

X Take the following out of the vehicle:

Rspare wheel Rjack Rvehicle tool kit box

For information on where to find the respective items, see “Where will I find ...?” (Y page 268) and (Y page 270). i Vehicles without spare wheel are not

factory-equipped with the tools required for a wheel change such as a jack or a wheel wrench. Some tools required for a wheel change are specific to your vehicle. Contact an authorized Mercedes-Benz Center to obtain the tools approved for your vehicle. This section describes the wheel change using the tools approved and recommended for your vehicle.

Lifting the vehicle G Warning! When jacking up the vehicle, only use the jack which has been specifically approved by Mercedes-Benz for your vehicle. The jack is designed exclusively for jacking up the vehicle at the jack take-up brackets built into both sides of the vehicle. Make sure the jack arm is fully seated in the jack take-up bracket. The jack must always be vertical when in use, especially on inclines or declines. The jack is intended only for lifting the vehicle briefly for wheel changes. It is not suited for performing maintenance work under the vehicle. To help avoid personal injury, use the jack only to lift the vehicle during a wheel change. Never get beneath the vehicle while it is supported by the jack. Keep hands and feet

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 319
Version: 2.11.8.1

away from the area under the lifted vehicle. Always lower the vehicle onto sufficient capacity jackstands before working under the vehicle. Always engage the parking brake firmly and block the wheels with wheel chocks or other sizeable objects before raising the vehicle with the jack. Do not disengage the parking brake while the vehicle is raised. Make sure that the ground on which the vehicle is standing and where you place the jack is solid, level and not slippery. If necessary, use a large underlay. On slippery surfaces, such as tiled floors, you should use a non-slip underlay, for example a rubber mat. Do not use wooden blocks or similar objects to support the jack. Otherwise the jack may not be able to achieve its load-bearing capacity if it is not at its full height. Never start the engine when the vehicle is raised. Also observe the notes on the jack.

X Prevent the vehicle from rolling away by

blocking wheels with wheel chocks or other sizeable objects. When your vehicle is equipped with a wheel chock, it is included with the vehicle tool kit (Y page 268). For information on setting up the collapsible wheel chock, see (Y page 269).

When changing a wheel on a level surface: X Place a wheel chock or other sizeable

object in front of and another wheel chock or other sizeable object behind the wheel that is diagonally opposite to the wheel being changed.

Always try lifting the vehicle using the jack on a level surface. However, should circumstances require you to do so on a hill: X Place wheel chocks or other sizeable

objects on the downhill side in front of both wheels on the side opposite to the side on which the wheel is to be changed.

Flat tire 319

G Warning! Only jack up the vehicle on level ground or on slight inclines/declines. Otherwise, the vehicle could fall off the jack and injure you or others.

X On the wheel to be changed, loosen but do

not yet remove the wheel bolts (approximately one full turn with wheel wrench :).

The jack take-up brackets are located directly behind the front wheel housings and in front of the rear wheel housings. G Warning! The jack is designed exclusively for jacking up the vehicle at the jack take-up brackets. Make sure the jack arm is fully seated in the jack take-up bracket. If you do not position the jack correctly in the jack take-up bracket, the vehicle can fall off the jack and seriously or fatally injure you or others.

! Do not position the jack on the body of the vehicle, as this may cause damage to the vehicle.

204_AKB; 5; 23, en-US d2ureepe,

320 Flat tire

X Place jack = on firm ground. X Position jack = under take-up

bracket ; so that it is always vertical as seen from the side, even if the vehicle is parked on an incline.

X Turn crank ? clockwise until jack = is

fully seated in take-up bracket ; and the jack base evenly meets the ground.

X Jack up the vehicle until the wheel is a

maximum of 1.2 in (3 cm) from the ground.

Removing the wheel X Unscrew and remove the wheel bolts. ! Do not place wheel bolts in sand or dirt. This could result in damage to the wheel bolts and wheel hub threads.

X Remove the wheel.

2009-07-16T17:54:06+02:00 - Seite 320
Version: 2.11.8.1

Attaching the spare wheel G Warning! Always replace wheel bolts that are damaged or rusted. Never apply oil or grease to wheel bolts. Damaged wheel hub threads should be repaired immediately. Do not continue to drive under these circumstances! Contact an authorized Mercedes-Benz Center or call Roadside Assistance. Incorrect wheel bolts or improperly tightened wheel bolts can cause the wheel to come off. This could cause an accident. Make sure to use the correct wheel bolts. G Warning! Only use genuine Mercedes-Benz wheel bolts. Other wheel bolts may come loose. Do not tighten the wheel bolts when the vehicle is raised. Otherwise the vehicle could fall off the jack.

X Clean contact surfaces of wheel and wheel

hub.

! To avoid paint damage, place wheel flat

against hub and hold it there while installing first wheel bolt.

X Guide the spare wheel onto the wheel hub

and push it on.

X Insert the wheel bolts and tighten them

slightly.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 321
Version: 2.11.8.1

Lowering the vehicle X Lower the vehicle by turning the crank

counterclockwise until the vehicle is resting fully on its own weight.

X Remove the jack.

X Tighten the five wheel bolts evenly,

following the diagonal sequence illustrated (: to A), until all bolts are tight. Observe a tightening torque of 96 lb-ft (130 Nm). G Warning! Have the tightening torque checked after changing a wheel. The wheels could come loose if they are not tightened to a torque of 96 lb-ft (130 Nm).

X Fully collapse the jack, with handle folded

in (storage position), see (Y page 269).

X Store the jack and the other vehicle tools

in the designated storage space.

For information on storing the spare wheel after it has been replaced by a regular road wheel, see (Y page 270). i Vehicles with TPMS:

Do not restart the tire inflation pressure monitor until a full size wheel/tire with functioning sensor has been placed back into service on the vehicle.

Battery

321

Battery Safety notes A battery should always be sufficiently charged in order to achieve its rated service life. Refer to Maintenance Booklet for battery maintenance intervals. If you use your vehicle mostly for short- distance trips, you will need to have the battery charge checked more frequently. When replacing a battery, always use a battery approved by Mercedes-Benz. If you do not intend to operate your vehicle for an extended period of time, contact an authorized Mercedes-Benz Center about steps you need to observe. G Warning! Observe all safety instructions and precautions when handling automotive batteries.

Risk of explosion.

Fire, open flames and smoking are prohibited when handling batteries. Avoid creating sparks. Battery acid is caustic. Do not allow it to come into contact with skin, eyes or clothing. Wear suitable protective clothing, especially gloves, apron and faceguard. Wear eye protection. Rinse any acid spills immediately with clear water. Contact a physician if necessary.

204_AKB; 5; 23, en-US d2ureepe,

322 Battery

Keep children away.

Follow the instructions in this Operator’s Manual.

A battery contains materials that can harm the environment if disposed of improperly. A large 12 V storage battery contains lead. Recycling of the battery is the preferred method of disposal. Many states (USA only) or provinces (Canada only) require sellers of batteries to accept the old battery for recycling. G Warning! Failure to follow these instructions can result in severe injury or death. Never lean over batteries while connecting. You might get injured. Battery fluid contains sulfuric acid. Do not allow this fluid to come in contact with eyes, skin or clothing. In case it does, immediately flush affected area with water and seek medical help if necessary. A battery will also produce hydrogen gas, which is flammable and explosive. Keep flames or sparks away from battery, avoid improper connection of jumper cables, smoking etc. G Warning! Do not place metal objects on the battery as this could result in a short circuit. Use leak-proof batteries only to avoid the risk of acid burns in the event of an accident. Take care that you do not become statically charged, e.g. by wearing synthetic clothing or rubbing against textiles. For this reason, you also should not pull or push the battery over carpets or other synthetic materials. Never touch the battery first. First touch the outside body of the vehicle in order to release any possible electrostatic charges.

2009-07-16T17:54:06+02:00 - Seite 322
Version: 2.11.8.1

Do not rub the battery with rags or cloths. The battery could explode if touched due to electrostatic charge or due to spark formation.

! As any other battery, the battery may

discharge if you do not operate the vehicle for an extended period of time. Have the battery disconnected at a qualified workshop or an authorized Mercedes-Benz Center in such a case. You may also connect an accessory battery charge unit expressly approved by Mercedes-Benz for your vehicle model to maintain the battery charge. Contact an authorized Mercedes- Benz Center for further information. The battery, the battery ventilation hose and the lateral plug must always be securely installed when the vehicle is in operation.

! Never loosen or detach battery terminal clamps while the engine is running or the SmartKey is in the starter switch or KEYLESS-GO button is in position 1. Otherwise the alternator and other electronic components could be severely damaged. Have the battery checked regularly at an authorized Mercedes-Benz Center. Refer to Maintenance Booklet for maintenance intervals or contact an authorized Mercedes-Benz Center for further information.

i After battery power was interrupted, do

the following: RReset the automatic exterior mirror fold

in function (Y page 88).

RSet the clock (Y page 132). Vehicles with

COMAND: see separate COMAND operating instructions.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 323
Version: 2.11.8.1

Charging the battery G Warning! Never charge a battery while still installed in the vehicle unless the accessory battery charge unit approved by Mercedes-Benz is being used. Gases may escape during charging and could cause an explosion that may result in personal injury, paint damage or corrosion. An accessory battery charge unit specially adapted for Mercedes-Benz vehicles and tested and approved by Mercedes-Benz is available. It permits the charging of the battery in its installed position. Contact an authorized Mercedes-Benz Center for information and availability. Charge battery in accordance with the separate instructions for the accessory battery charger. Have the battery charged at an authorized Mercedes-Benz Center. If you charge the battery yourself, follow the operating instructions for your charging device. Only use a battery charge unit with a maximum charging voltage of 14.8 V. X Charge battery in accordance with the

instructions of the battery charger manufacturer.

Jump starting

G Warning! Failure to follow these directions will cause damage to the electronic components, and can lead to a battery explosion and severe injury or death. Never lean over batteries while connecting or jump starting. You might get injured. Battery fluid contains sulfuric acid. Do not allow this fluid to come in contact with eyes, skin or clothing. In case it does, immediately

Jump starting 323

flush affected area with water, and seek medical help if necessary. A battery will also produce hydrogen gas, which is flammable and explosive. Keep flames or sparks away from battery, avoid improper connection of jumper cables, smoking, etc. Attempting to jump start a frozen battery can result in it exploding, causing personal injury. Read all instructions before proceeding.

! Vehicles with automatic transmission

and/or 4MATIC: Do not tow-start the vehicle. You could otherwise seriously damage the automatic transmission which is not covered by the Mercedes-Benz Limited Warranty.

! Jump starting should only be performed using the jump-start terminals located in the engine compartment. Avoid repeated and lengthy starting attempts. Do not attempt to start the engine using a battery quick-charge unit. If the engine does not run after several unsuccessful starting attempts, have it checked at the nearest authorized Mercedes-Benz Center. Excessive unburned fuel generated by repeated failed starting attempts may damage the catalytic converter and may present a fire risk. Make sure the jumper cables do not have loose or missing insulation. Make sure the cable clamps do not touch any other metal part while the other end is still attached to a battery.

If the battery is discharged, the engine can be started with jumper cables and the fully charged battery of another vehicle or an equivalent starter pack. Observe the following: RAccess to the battery is not possible on all vehicles. If you cannot access the battery

204_AKB; 5; 23, en-US d2ureepe,

324

Jump starting

2009-07-16T17:54:06+02:00 - Seite 324
Version: 2.11.8.1

of the other vehicle, provide jump start power by an external battery or starter pack.

RJump starting should only be performed when the engine and catalytic converter are cold.

RDo not jump start the engine or charge the

battery if the battery is frozen. Let the battery thaw out first.

ROnly jump start from batteries with the

same voltage rating (12 V). Jump starting with a more powerful battery could damage the vehicle’s electrical system. Such damage will not be covered by the Mercedes-Benz Limited Warranty.

ROnly use jumper cables with sufficient

cross-section and insulated terminal clamps.

RAlways make sure the jumper cables are not on or near pulleys, fans or other parts that move when an engine is started or running.

RShould the battery be drained completely, let the donating power source charge the vehicle for several minutes before reattempting the starting process.

The jump-start contacts are located in the engine compartment on the passenger side. X Make sure the two vehicles do not touch. X Switch off all electrical consumers. X Engage the parking brake. X Make sure the automatic transmission is in

park position P (manual transmission to Neutral).

X Open the hood (Y page 224).

Position B represents the charged battery of another vehicle or an equivalent starter pack. X Slide cover : from positive terminal = in

direction of arrow.

! Never invert the terminal connections!

X Connect positive terminal ; of charged

battery B with positive terminal = with a jumper cable. Clamp the cable to positive terminal ; of charged battery B first. X Start engine of the vehicle with charged

battery B and run at idle speed.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 325
Version: 2.11.8.1

X Connect negative terminal ? of charged battery B with negative terminal A with a jumper cable. Clamp the cable to negative terminal ? of charged battery B first.

X Start engine of the vehicle with the

discharged battery and run at idle speed. You can now turn on the electrical consumers. Do not switch on the headlamps under any circumstances.

X Remove the jumper cables from negative

terminals ? and A first.

X Remove the jumper cables from positive

terminals ; and =. You can now switch on the headlamps. X Slide cover : from positive terminal =

back.

X Have the battery checked at the nearest

authorized Mercedes-Benz Center.

Towing the vehicle Safety notes Mercedes-Benz recommends that the vehicle be transported with all wheels off the ground using flatbed or appropriate wheel lift/dolly equipment. This method is preferable to other types of towing. ! To prevent damage during transport, do

not tie down vehicle by its chassis or suspension parts.

If circumstances do not permit the recommended towing methods, the vehicle may be towed with all wheels on the ground or front axle raised (except vehicles with 4MATIC) only so far as necessary to have the vehicle moved to a safe location where the recommended towing methods can be employed. ! Before towing the vehicle observe the

following instructions: RVehicles with automatic transmission and/or 4MATIC: Do not tow-start the

Towing the vehicle 325

vehicle. You could otherwise seriously damage the automatic transmission which is not covered by the Mercedes- Benz Limited Warranty.

RDo not tow with sling-type equipment. Towing with sling-type equipment over bumpy roads will damage radiator and supports.

RTowing of the vehicle should only be

done using the properly installed towing eye bolt. Never attach a tow cable, tow rope or tow rod to the vehicle chassis, frame or suspension parts.

G Warning! 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. Adapt your driving accordingly.

! Avoid pulling the vehicle abruptly or

diagonally, since it could result in damage to the chassis alignment.

! Do not use the towing eye bolt for

recovery, as this could damage the vehicle. If in doubt, recover the vehicle with a crane.

i If the battery is disconnected or

discharged Rthe SmartKey will not turn in the starter

switch

RVehicles with automatic transmission:

the automatic transmission will remain in park position P

For more information see “Battery” (Y page 321) or “Jump starting” (Y page 323). Vehicles with automatic transmission: For information on manually unlocking the gear selector lever, see (Y page 311).

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 326
Version: 2.11.8.1

326 Towing the vehicle

Installing towing eye bolt Depending on whether you are towing a vehicle or you are being towed, the towing eye bolt can be screwed into threaded holes which are located behind covers on each bumper. The towing eye bolt is supplied with the vehicle tool kit, located underneath the trunk floor (Y page 268). X Take the vehicle tool kit out of the trunk.

Removing cover in front bumper

X Press mark on cover : as indicated by the

arrow.

X Lift cover : off to reveal the threaded hole

for the towing eye bolt.

Removing cover in rear bumper G Warning! In order to avoid possible serious burns or injury, use extreme caution when removing the rear cover, because the rear exhaust pipe is extremely hot.

X Press mark on cover : as indicated by the

arrow.

X Lift cover : off to reveal the threaded hole

for the towing eye bolt.

Fixing towing eye bolt

Example illustration front bumper X Take the towing eye bolt and, if so

equipped, the wheel wrench from the vehicle tool kit (Y page 268).

X Screw towing eye bolt ; clockwise into

threaded hole to its stop.

X Insert wheel wrench into towing eye and tighten towing eye bolt ; by turning it clockwise.

or X If your vehicle is not equipped with a wheel

wrench, use a suitable object to turn the towing eye bolt.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 327
Version: 2.11.8.1

Towing the vehicle 327

X Vehicles with manual transmission: Shift the manual transmission into the neutral position (no gear selected).

or X Vehicles with automatic transmission: Shift

the automatic transmission into neutral position N.

X Release the brake pedal. X If engaged, release the parking brake. X Switch on the hazard warning flasher

(Y page 93).

! The vehicle may be towed only for

distances up to 30 miles (50 km) and at a speed not to exceed 30 mph (50 km/h).

i While being towed with the hazard

warning flasher in use, use the combination switch in the usual manner to signal turns. Only the selected turn signal will operate. Upon canceling the turn signal, the hazard warning flasher will operate again.

Towing with front axle raised ! The vehicle may be towed only for

distances up to 30 miles (50 km) and at a speed not to exceed 30 mph (50 km/h).

! Vehicles with 4MATIC: Do not tow with

one axle raised. Doing so could damage the transfer case, which is not covered by the Mercedes-Benz Limited Warranty. All wheels must be on or off the ground. Observe instructions for towing the vehicle with all wheels on the ground.

X Make sure the ignition is switched on. X With the vehicle at a standstill, depress the

brake pedal and keep it pressed.

Removing towing eye bolt X Loosen towing eye bolt ; by turning it

counterclockwise.

X Unscrew towing eye bolt ;. X Store the towing eye bolt ; and wheel

wrench back into the vehicle tool kit.

Towing with all wheels on the ground G Warning! If circumstances require towing the vehicle with all wheels on the ground, always tow with a tow bar if: Rthe engine will not run Rthere is a malfunction in the brake system Rthere is a malfunction in the power supply

or in the vehicle’s electrical system

This is necessary to adequately control the towed vehicle. Prior to towing the vehicle with all wheels on the ground, make sure the SmartKey is in starter switch position 2. If the SmartKey is left in the starter switch position 0 for an extended period of time, it can no longer be turned in the switch. In this case, the steering is locked. To unlock, remove SmartKey from starter switch and reinsert. G Warning! 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. Adapt your driving accordingly.

X Make sure the ignition is switched on. X With the vehicle at a standstill, depress the

brake pedal and keep it pressed.

204_AKB; 5; 23, en-US d2ureepe,

328 Fuses

X Vehicles with manual transmission: Shift the manual transmission into the neutral position (no gear selected).

or X Vehicles with automatic transmission: Shift

the automatic transmission into neutral position N.

X Release the brake pedal. X If engaged, release the parking brake. X Switch off the automatic central locking

(Y page 135).

X Switch off the ignition and leave the

SmartKey in the starter switch.

X Switch on the hazard warning flasher

(Y page 93).

! Vehicles without 4MATIC:

Because the ESP® operates automatically, the engine and ignition must be shut off (SmartKey in starter switch position 0 or 1 or KEYLESS-GO start/stop button in position 0 or 1) when the vehicle is being towed with the front axle raised. Active braking action through the ESP® may otherwise seriously damage the brake system which is not covered by the Mercedes-Benz Limited Warranty.

Fuses Introduction The electrical fuses in your vehicle serve to switch off malfunctioning power circuits. If a fuse is blown, the components and systems secured by that fuse will stop operating. G Warning! Only use fuses approved by Mercedes-Benz with the specified amperage for the system in question and do not attempt to repair or bridge a blown fuse. Using other than approved fuses or using repaired or bridged fuses may cause an overload leading to a fire, and/or cause damage to electrical

2009-07-16T17:54:06+02:00 - Seite 328
Version: 2.11.8.1

components and/or systems. Have the cause determined and remedied by an authorized Mercedes-Benz Center. A blown fuse must be replaced by an appropriate spare fuse (recognizable by its color or the fuse rating given on the fuse) of the amperage recommended in the fuse chart. Any Mercedes-Benz Center will be glad to advise you on this subject. i In case of a blown fuse contact Roadside

Assistance or an authorized Mercedes- Benz Center.

If a newly inserted fuse blows again, have the cause determined and rectified by an authorized Mercedes-Benz Center. The fuse chart is located in the trunk with the vehicle tool kit (Y page 268). The fuse chart explains the fuse allocation and fuse amperages.

Before replacing fuses X Engage the parking brake. X Make sure the automatic transmission is in

park position P (manual transmission to Neutral).

X Switch off all electrical consumers. X Turn off the engine. X Remove the SmartKey from the starter

switch.

X Vehicles with 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.

Fuse box in passenger compartment ! Do not use sharp objects such as a

screwdriver to open the fuse box cover in the dashboard. You could damage the fuse box cover or the dashboard.

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 329
Version: 2.11.8.1

Fuses

329

Fuse box in engine compartment X Open the hood.

X Open the driver’s door. X Opening: Using your hands, pull fuse box

cover : in direction of arrow = and remove in direction of arrow ;.

X Closing: Hook fuse box cover : into the

opening at the front.

X Press fuse box cover : back on until it

engages.

! The fuse box cover must be properly

positioned as described. Otherwise, moisture or dirt could enter the fuse box and possibly impair fuse operation.

Fuse box in trunk

X Open the trunk. X Opening: Turn lock : clockwise. X Pull cover ; downward in direction of

arrow.

X Closing: Press cover ; backward. X Turn lock : counterclockwise.

X With a dry cloth, remove any moisture from

fuse box cover.

X Opening: Release wire ; from fuse box

cover.

X Release clamps :. X Remove fuse box cover. X Closing: Make sure the sealing rubber is

positioned properly.

X Press fuse box cover down and secure with

clamps :.

X Fasten wire ; on fuse box cover. ! The fuse box cover must be properly

positioned as described. Otherwise, moisture or dirt could enter the fuse box and possibly impair fuse operation.

X Close the hood after checking or replacing

fuses.

204_AKB; 5; 23, en-US d2ureepe,

330

2009-07-16T17:54:06+02:00 - Seite 330
Version: 2.11.8.1

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 331
Version: 2.11.8.1

331

Vehicle equipment ............................ 332
Parts service ..................................... 332
Warranty coverage ........................... 332
Identification labels .......................... 332
Vehicle specification C 250
(204.052) ........................................... 334
Vehicle specification C 250 Sport (204.052) ........................................... 334
Vehicle specification C 250
4MATIC (204.085) ............................. 335
Vehicle specification C 250
4MATIC Sport (204.085) .................. 336
Vehicle specification C 300
(204.054) ........................................... 337
Vehicle specification C 300 Sport (204.054) ........................................... 338
Vehicle specification C 300
4MATIC (204.081) ............................. 339
Vehicle specification C 300
4MATIC Sport (204.081) .................. 340
Vehicle specification C 350
(204.056) ........................................... 341
Vehicle specification C 350 Sport (204.056) ........................................... 342
Vehicle specification C 350
4MATIC (204.087) ............................. 343
Vehicle specification C 63 AMG (204.077) ........................................... 343
Rims and tires ................................... 344
Fuels, coolants, lubricants, etc. ...... 349

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 332
Version: 2.11.8.1

332

Identification labels

RNew Vehicle Limited Warranty REmission System Warranty REmission Performance Warranty RCalifornia, Connecticut, Maine,

Massachusetts, New York, Pennsylvania, Rhode Island, and Vermont Emission Control Systems Warranty

RState Warranty Enforcement Laws (Lemon

Laws)

Replacement parts and accessories are covered by the Mercedes-Benz Parts and Accessories warranties, copies of which are available at any authorized Mercedes-Benz Center.

Loss of Service and Warranty Information booklet Should you lose your Service and Warranty Information booklet, have an authorized Mercedes-Benz Center arrange for a replacement. It will be mailed to you.

Identification labels

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.

Parts service

All authorized Mercedes-Benz Centers maintain a stock of Genuine Mercedes-Benz Parts required for maintenance and repair work. In addition, strategically located parts distribution centers provide quick and reliable parts service. More than 300 000 different parts for Mercedes-Benz models are available. Genuine Mercedes-Benz Parts are subjected to stringent quality inspections. Each part has been specifically developed, manufactured or selected for and adapted to Mercedes-Benz vehicles. Therefore, Genuine Mercedes-Benz Parts should be installed. ! Do not use non-genuine Mercedes-Benz parts and accessories not authorized by Mercedes-Benz. Doing so could damage the vehicle, which is not covered by the Mercedes-Benz Limited Warranty. Also, it could compromise the vehicle’s durability or safety.

Warranty coverage

Your vehicle is covered under the terms of the warranties printed in the Service and Warranty Information booklet. Your authorized Mercedes-Benz Center will exchange or repair any defective parts originally installed in the vehicle in accordance with the terms of the following warranties:

204_AKB; 5; 23, en-US d2ureepe,

2009-07-16T17:54:06+02:00 - Seite 333
Version: 2.11.8.1