2012 Mercedes-benz CL Class Owners Manual

in the Service Booklet. This may otherwise lead to increased wear and damage to the major assemblies or the vehicle.

Driving abroad An extensive Mercedes-Benz Service network is also available in other countries. You can obtain further information from any authorized Mercedes-Benz Center.

Care Notes on care Regular care of your vehicle is a condition for retaining the quality in the long term.

Use care products and cleaning agents recommended and approved by Mercedes- Benz. G WARNING Many cleaning products can be hazardous. Some are poisonous, others are flammable. Always follow the instructions on the particular container. Always open your vehicle's doors or windows when cleaning the inside. Never use fluids or solvents that are not designed for cleaning your vehicle. Always lock away cleaning products and keep them out of reach of children.

! For cleaning your vehicle, do not use any

of the following: Rdry, rough or hard cloths Rabrasive cleaning agents Rsolvents Rcleaning agents containing solvents Do not scrub. Do not touch the surfaces or protective films with hard objects, e.g. a ring or ice scraper. You could otherwise scratch or damage the surfaces and protective film. H Environmental note Dispose of empty packaging and cleaning cloths in an environmentally responsible manner.

! Do not park the vehicle for an extended period straight after cleaning it, particularly after having cleaned the wheels with wheel cleaner. Wheel cleaners could cause increased corrosion of the brake discs and brake pads/linings. For this reason, you should drive for a few minutes after cleaning. Braking heats the brake discs and the brake pads/linings, thus drying them. The vehicle can then be parked.

Care 415

Exterior care Automatic car wash G WARNING Braking efficiency is reduced after washing the vehicle. This could cause an accident. For this reason, you must drive particularly carefully after washing the vehicle until the brakes have dried. G WARNING The vehicle is braked when the HOLD function or DISTRONIC PLUS is activated. Therefore, deactivate the HOLD function and DISTRONIC PLUS before the vehicle is washed in an automatic car wash.

You can wash the vehicle in an automatic car wash from the very start. ! It is preferable to use car washes with

adjustable21 high-pressure precleaning. In car washes that use high water pressures, there is a risk that a small amount of water may leak into the vehicle.

! Never clean your vehicle in a Touchless Automatic Car Wash as these use special cleaning agents. These cleaning agents can damage the paintwork or plastic parts.

If the vehicle is very dirty, pre-wash it before cleaning it in an automatic car wash. ! In car washes with a towing mechanism, make sure that the automatic transmission is in transmission position N, otherwise the vehicle could be damaged. RVehicles with a SmartKey:

Do not remove the SmartKey from the ignition lock. Do not open the driver's door or front-passenger door when the engine is switched off. Otherwise, the automatic transmission selects park position P automatically and locks the wheels. You can prevent this by shifting

the automatic transmission to N beforehand.

RVehicles with KEYLESS-GO:

Do not open the driver's door or front- passenger door when the engine is switched off. Otherwise, the automatic transmission selects park position P automatically and locks the wheels.

Observe the following to make sure that the automatic transmission stays in position N: X Make sure the vehicle is stationary and the

ignition is switched off.

X Turn the SmartKey to position

2 (Y page 267) in the ignition lock. Use the SmartKey instead of the Start/ Stop button on vehicles with KEYLESS-GO.

X Depress and hold the brake pedal. X Shift the automatic transmission to

position N.

X Release the brake pedal. X Release the electric parking brake. X Switch off the ignition and leave the

SmartKey in the ignition lock.

! Make sure that:

Rthe side windows and the sliding sunroof

are fully closed.

Rthe ventilation/heating is switched off

(the OFF button has been pressed).

Rthe windshield wiper switch is in position

0.

Otherwise, the vehicle might be damaged. After using an automatic car wash, wipe off wax from the windshield and the wiper blades. This will prevent smears and reduce wiping noises caused by residue on the windshield.

Washing by hand Carefully remove all deposits of road salt as soon as possible when driving in winter.

21 Corresponds to the specification for the Cabriolet program.

416 Care

Also, clean the insides of the wheels when washing the underbody of the vehicle. X Do not use hot water and do not wash the

vehicle in direct sunlight.

X Use a soft car sponge for cleaning. X Use a gentle cleaning agent, e.g. a

Mercedes-Benz approved car shampoo.

X Wash down the vehicle with a gentle water

jet.

X Do not point the water jet directly at the air

inlets.

X Use plenty of water and rinse the sponge

frequently.

X Rinse the vehicle with clean water and dry

it thoroughly with a chamois.

X Do not allow the cleaning agent to dry on

the paintwork.

Power washers G WARNING Do not use power washers with circular-jet nozzles (dirt grinders) to clean your vehicle, in particular the tires. You could otherwise damage the tires and cause an accident.

! Always maintain a distance of at least

11.8 in (30 cm) between the vehicle and the power washer nozzle. Information about the correct distance is available from the equipment manufacturer. Move the power washer nozzle around when cleaning your vehicle. Do not aim directly at any of the following: Rtires Rdoor gaps, roof gaps, joints etc. Relectrical components Rbattery Rconnectors Rlights Rseals Rtrim elements Rventilation slots

Damaged seals or electrical components can lead to leaks or failures.

Cleaning the wheels ! Do not use acidic wheel cleaning products to remove brake dust. This could damage wheel bolts and brake components.

! Do not park the vehicle for an extended period straight after cleaning it, particularly after having cleaned the wheels with wheel cleaner. Wheel cleaners could cause increased corrosion of the brake discs and brake pads/linings. For this reason, you should drive for a few minutes after cleaning. Braking heats the brake discs and the brake pads/linings, thus drying them. The vehicle can then be parked.

Cleaning the paintwork Scratches, corrosive deposits, areas affected by corrosion and damage caused by inadequate care cannot always be completely repaired. In such cases, visit a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center. X Remove impurities immediately, where

possible, whilst avoiding rubbing too hard. X Soak insect remains with insect remover and rinse off the treated areas afterwards. X Soak bird droppings with water and rinse

off the treated areas afterwards.

X Remove coolant, brake fluid, tree resin, oils, fuels and greases by rubbing gently with a cloth soaked in petroleum ether or lighter fluid.

X Use tar remover to remove tar stains. X Use silicone remover to remove wax. ! Do not affix:

Rstickers Rfilms Rmagnetic plates or similar items to painted surfaces. You could otherwise damage the paintwork.

If water no longer forms "beads" on the paint surface, use the paint care products recommended and approved by Mercedes- Benz. This is the case approximately every three to five months, depending on the climate conditions and the care product used. If dirt has penetrated the paint surface or the paint has become dull, the paint cleaner recommended and approved by Mercedes- Benz should be used. Do not use these care products in the sun or on the hood while the hood is hot. X Use a suitable touch-up stick, e.g. MB

Touch-Up Stick, to correct smaller areas of paint damage quickly and provisionally.

Matte finish care If your vehicle has a clear matte finish, observe the following instructions in order to avoid damage to the paintwork due to incorrect care. These notes also apply to light alloy wheels with a clear matte finish. ! Never polish the vehicle or the light alloy

wheels. Polishing causes the finish to shine.

! The following may cause the paint to

become shiny and thus reduce the matte effect: RVigorous rubbing with unsuitable

materials.

RFrequent use of car washes. RWashing the vehicle in direct sunlight.

! Never use paint cleaner, buffing or

polishing products, or gloss preserver, e.g. wax. These products are only suitable for high-gloss surfaces. Their use on vehicles with matte finish leads to considerable surface damage (shiny, spotted areas). Always have paintwork repairs performed at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.

Care 417

! Do not use wash programs with a hot wax

treatment under any circumstances.

i The vehicle should preferably be washed by hand using a soft sponge, car shampoo and plenty of water.

i Use only insect remover and car shampoo

from the range of recommended and approved Mercedes-Benz care products.

Cleaning the windows G WARNING Before cleaning the windshield or wiper blades, switch off the windshield wipers and remove the SmartKey from the ignition lock. On vehicles with KEYLESS-GO, press the Start/Stop button repeatedly until all indicator lamps in the instrument cluster have gone out. The windshield wipers could otherwise move and injure you.

! Only fold the windshield wipers away from

the windshield when vertical. Otherwise, you will damage the hood.

X Clean the inside and outside of the

windows with a damp cloth and a cleaning agent that is recommended and approved by Mercedes-Benz.

! Do not use dry cloths, abrasive products,

solvents or cleaning agents containing solvents to clean the inside of the windows. Do not touch the insides of the windows with hard objects, e.g. an ice scraper or ring. There is otherwise a risk of damaging the windows.

! Clean the water drainage channels of the windshield and the rear window at regular intervals. Deposits such as leaves, petals and pollen may under certain circumstances prevent water from draining away. This can lead to corrosion damage and damage to electronic components.

418 Care

Cleaning the wiper blades G WARNING Before cleaning the windshield or wiper blades, switch off the windshield wipers and remove the SmartKey from the ignition lock. On vehicles with KEYLESS-GO, press the Start/Stop button repeatedly until all indicator lamps in the instrument cluster have gone out. The windshield wipers could otherwise move and injure you.

! Only fold the windshield wipers away from

the windshield when vertical. Otherwise, you will damage the hood.

! Do not pull the wiper blade. Otherwise,

the wiper blade could be damaged.

! Do not clean wiper blades too often and do not rub them too hard. Otherwise, the graphite coating could be damaged. This could cause wiper noise.

X Fold the wiper arms away from the

windshield.

X Carefully clean the wiper blades with a

damp cloth.

X Fold the windshield wipers back again

before switching on the ignition.

! Hold the wiper arm securely when folding back. The windshield could be damaged if the wiper arm smacks against it suddenly.

Cleaning the exterior lighting X Clean the plastic lenses of the exterior

lights with a wet sponge and a mild cleaning agent, e.g. Mercedes-Benz car shampoo or cleaning cloths.

! Only use cleaning agents or cleaning

cloths which are suitable for plastic light lenses. Unsuitable cleaning agents or cleaning cloths could scratch or damage the plastic light lenses.

Cleaning the sensors

X Clean sensors : of the driving systems with water, car shampoo and a soft cloth. ! When cleaning the sensors with a power washer, maintain a distance between the vehicle and the nozzle of the power washer of at least 11.8 in (30 cm). Information about the correct distance is available from the equipment manufacturer.

Cleaning the rear view camera

X Use clear water and a soft cloth to clean

camera lens :.

! Do not clean the camera lens and the area around the rear view camera with a power washer.

Cleaning the exhaust tail pipes Impurities combined with the effects of road grit and corrosive environmental factors may cause flash rust to form on the surface. You can restore the original shine of the exhaust tail pipe by cleaning it regularly, especially in winter and after washing. ! Do not clean the exhaust tail pipes with alkaline-based cleaning agents, such as wheel cleaner.

X Clean the exhaust tail pipes with a chrome

care product tested and approved by Mercedes-Benz.

Interior care Cleaning the display X Before cleaning the display, make sure that

it is switched off and has cooled down.

X Clean the display surface using a

commercially-available microfiber cloth and TFT/LCD display cleaner.

X Dry the display surface using a dry

microfiber cloth.

Care 419

G WARNING Please do not forget that your primary responsibility is to drive the vehicle. A driver's attention to the road must always be his/her primary focus when driving. For your safety and the safety of others, stop before trying to remove window fogging or cleaning the window in front of the Night View Assist Plus camera. Bear in mind that at a speed of just 30 mph (approximately 50 km/h), your vehicle is covering a distance of 44 feet (approximately 14 m) every second.

X Fold down the camera cover by recess :.

! For cleaning, do not use any of the

following: Ralcohol-based thinner or gasoline Rabrasive cleaning agents Rcommercially-available household

cleaning agents

These may damage the display surface. Do not put pressure on the display surface when cleaning. This could lead to irreparable damage to the display.

Cleaning Night View Assist Plus ! Never clean the camera lens. When

cleaning the field of vision of the driving systems, make sure that you do not spray glass cleaner on the camera lens. If the camera lens is dirty, visit a qualified specialist workshop.

X Use a soft cloth to clean the windshield in

front of camera ;.

Cleaning the plastic trim G WARNING When cleaning the steering wheel boss and dashboard, do not use cockpit sprays or cleaning agents containing solvents. Cleaning

420 Care

agents containing solvents cause the surface to become porous, and as a result, plastic parts may break away and be thrown around the interior when an air bag is deployed, which may result in severe injuries.

! Do not affix the following to plastic

surfaces: Rstickers Rfilms Rscented oil bottles or similar items You can otherwise damage the plastic.

! Do not allow cosmetics, insect repellent or sunscreen to come into contact with the plastic trim. This maintains the high-quality look of the surfaces.

X Wipe the plastic trim with a damp, lint-free

cloth, e.g. a microfiber cloth.

X Heavy soiling: use car care and cleaning products recommended and approved by Mercedes-Benz. The surface may change color temporarily. Wait until the surface is dry again.

Cleaning the steering wheel and gear or selector lever X Thoroughly wipe with a damp cloth or use

leather care agents that have been recommended and approved by Mercedes- Benz.

Cleaning genuine wood and trim elements X Wipe the wooden trim and trim pieces with

a damp, lint-free cloth, e.g. a microfiber cloth.

X Heavy soiling: use car care and cleaning products recommended and approved by Mercedes-Benz.

! Do not use solvent-based cleaning agents

such as tar remover, wheel cleaners, polishes or waxes. There is otherwise a risk of damaging the surface.

! Do not use chrome polish on trim pieces. The trim pieces have a chrome look but are mostly made of anodized aluminum and can lose their shine if chrome polish is used. Use a damp, lint-free cloth instead when cleaning the trim pieces. If the chrome-plated trim pieces are very dirty, you can use a chrome polish. If you are unsure as to whether the trim pieces are chrome-plated or not, consult an authorized Mercedes-Benz Center.

Cleaning the seat covers ! Do not use microfiber cloths to clean

genuine leather, artificial leather or Alcantara® covers. If used often, these can damage the cover.

! Observe the following when cleaning: Rclean genuine leather covers carefully with a damp cloth and then wipe the covers down with a dry cloth. Make sure that the leather does not become soaked. It may otherwise become rough and cracked. Only use leather care agents that have been tested and approved by Mercedes-Benz. You can obtain these from a qualified specialist workshop, e.g. a Mercedes-Benz Service center.

Rclean artificial leather covers with a cloth moistened with a solution containing 1% detergent (e.g. dish washing liquid).

Rclean cloth covers with a microfiber cloth moistened with a solution containing 1% detergent (e.g. dish washing liquid). Rub carefully and always wipe entire seat sections to avoid leaving visible lines. Leave the seat to dry afterwards. Cleaning results depend on the type of dirt and how long it has been there.

Rclean Alcantara® covers with a damp cloth. Make sure you wipe entire seat sections to avoid leaving visible lines.

i Note that regular care is essential to

ensure that the appearance and comfort of the covers is retained over time.

Cleaning the seat belts X Use clean, lukewarm water and soap

solution.

! Do not clean the seat belts using chemical cleaning agents. Do not dry the seat belts by warming them above 176 ‡ (80 †) or placing them in direct sunlight. G WARNING Do not bleach or dye seat belts as this may severely weaken them. In a crash, they may not be able to provide adequate protection.

Cleaning the headliner and carpets X Roof lining: use soft brushes or dry

shampoo if it is particularly dirty.

X Carpets: use carpet and textile cleaners

that have been approved and recommended by Mercedes-Benz.

Care 421

422

Useful information ............................ 424
Where will I find...? ........................... 424
Flat tire .............................................. 425
Battery ............................................... 430
Jump-starting .................................... 433
Towing and tow-starting .................. 435
Fuses .................................................. 437

423

424 Where will I find...?

Useful information

i This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences are possible. Please note that your vehicle may not be equipped with all features described. This also applies to safety- related systems and functions.

i Please read the information on qualified

specialist workshops (Y page 29).

Where will I find...? First-aid kit X Open the trunk lid.

: Folding wheel chock ; Vehicle tool kit tray cover = Vehicle tool kit ? Jack

"Minispare" emergency spare wheel The "Minispare" emergency spare wheel can be found in the stowage well under the trunk floor. X Lift the trunk floor up (Y page 391).

X Release strap :. X Remove first-aid kit ; from the parcel net. i Check the expiration date on the first-aid

kit at least once a year. Replace the contents if necessary, and replace missing contents.

Vehicle tool kit The vehicle tool kit can be found in the stowage well under the trunk floor. X Lift the trunk floor up (Y page 391).

X Turn stowage tray = counter-clockwise and remove together with vehicle tool kit tray ;.

X Remove "Minispare" emergency spare

wheel :.

For further information on changing a wheel and mounting the spare wheel, see (Y page 425).

Flat tire Preparing the vehicle i Vehicle preparation is not necessary on

vehicles with MOExtended tires.

X Stop the vehicle as far away as possible

from traffic on solid, non-slippery and level ground.

X Switch on the hazard warning lamps. X Engage the electric parking brake manually

X Bring the front wheels into the straight-

(Y page 284).

ahead position.

X Move the DIRECT SELECT lever to P. X Switch off the engine. X Vehicles without KEYLESS-GO: remove

the SmartKey from the ignition lock.

X Vehicles with KEYLESS-GO: open the

driver's door. The on-board electronics have status 0, which is the same as the SmartKey having been removed.

X Vehicles with KEYLESS-GO: remove the Start/Stop button from the ignition lock (Y page 267).

X All occupants must get out of the vehicle. Make sure that they are not endangered as they do so.

X Make sure that no one is near the danger

area while a wheel is being changed. Anyone who is not directly assisting in the wheel change should, for example, stand behind the barrier.

X Get out of the vehicle. Pay attention to

traffic conditions when doing so.

X Close the driver's door.

Flat tire 425

Changing a wheel and mounting the spare wheel Preparing the vehicle G WARNING The wheel and tire size of the emergency spare wheel/spare wheel may differ to that of the damaged wheel. When using an emergency spare wheel/spare wheel the handling characteristics of the vehicle may change. Adapt your style of driving accordingly. Never operate the vehicle with more than one emergency spare wheel/spare wheel that differs in size. Only use an emergency spare wheel/spare wheel of a differing size briefly and do not switch off ESP®. When using an emergency spare wheel, you must not exceed the maximum speed of 50 mph (80 km/h). G WARNING Have the emergency spare wheel/spare wheel replaced with a new wheel as soon as possible at a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required. Mercedes-Benz recommends that you use an authorized Mercedes-Benz Center for this purpose. In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop.

i Vehicles without a spare wheel/

emergency spare wheel are not equipped with a tire-change tool kit at the factory. For more information on which tools are required to perform a wheel change on your vehicle, e.g. wheel chock, lug wrench or alignment bolt, consult an authorized Mercedes-Benz Center.

426 Flat tire

X Prepare the vehicle as described

(Y page 425).

X Remove the following items (depending on the vehicle's equipment) from the stowage well under the trunk floor: Rthe emergency spare wheel Rthe vehicle tool kit Rthe folding wheel chock Rthe jack

X Secure the vehicle to prevent it from rolling

away.

Securing the vehicle to prevent it from rolling away G WARNING Only jack up the vehicle on level ground or on slight inclines/declines. The vehicle could otherwise fall off the jack and injure you or others.

If your vehicle is equipped with a wheel chock, it can be found in the vehicle tool kit (Y page 424). The folding wheel chock is an additional securing measure to prevent the vehicle from rolling away, for example when changing a wheel.

X Fold both plates upwards :. X Fold out lower plate ;. X Guide the lugs on the lower plate fully into

the openings in base plate =.

Securing the vehicle on level ground X On level ground: place chocks or other suitable items under the front and rear of the wheel that is diagonally opposite the wheel you wish to change.

Securing the vehicle on slight downhill gradients X On downhill gradients: place chocks or other suitable items in front of the wheels of the front and rear axle.

Raising 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 jacking points built into both sides of the vehicle. The jack saddle must be placed centrally under the jacking point. 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 away from the area under the lifted vehicle. Always lower the vehicle onto sufficient capacity jackstands before working under the vehicle. Always firmly engage the parking brake and block the wheels with wheel chocks or other sizable 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 as a jack underlay. 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.

Flat tire 427

and in front of the wheel housings of the rear wheels (arrows).

G WARNING The jack is designed exclusively for jacking up the vehicle at the jacking points. The jack saddle must be placed centrally under the jacking point. If you do not position the jack correctly in the jacking point, the vehicle can fall off the jack and seriously or fatally injure you or others.

! The jack is designed exclusively for

jacking up the vehicle at the jacking points. Otherwise, your vehicle could be damaged.

X Position jack = at jacking point ;.

X Using lug wrench :, loosen the bolts on the wheel you wish to change by about one full turn. Do not unscrew the bolts completely.

The jacking points for the jack are located behind the wheel housings of the front wheels

428 Flat tire

Mounting a new 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. G WARNING Make sure to use the original length wheel bolts when remounting the original wheel after it has been repaired.

X Make sure that the base of the jack is

positioned directly under the jacking point. X Turn crank ? clockwise until jack = sits

completely on jacking point ; and the base of the jack lies evenly on the ground.

X Turn crank ? until the tire is raised a maximum of 1.2 inches (3 cm) off the ground.

Removing a wheel

X Unscrew the uppermost wheel bolt

completely.

X Screw alignment bolt : into the thread

instead of the wheel bolt.

X Unscrew the remaining wheel bolts fully. ! Do not place wheel bolts in sand or on a

dirty surface. The bolt and wheel hub threads could otherwise be damaged when you screw them in. X Remove the wheel.

Wheel bolts for: : All alloy wheels ; A "Minispare" emergency spare wheel ! Always use wheel bolts ; to mount the "Minispare" emergency spare wheel. Using other wheel bolts to mount the "Minispare"

emergency spare wheel could damage the brake system.

X Clean the wheel and wheel hub contact

surfaces.

! To prevent damage to the paintwork, hold the wheel securely against the wheel hub while screwing in the first wheel bolt.

X Slide the emergency spare wheel onto the

alignment bolt and push it on.

X Tighten the wheel bolts until they are

finger-tight.

X Unscrew the alignment bolt. X Tighten the last wheel bolt until it is finger-

tight.

Lowering the vehicle X Turn the crank of the jack counter-

clockwise until the vehicle is once again standing firmly on the ground.

X Place the jack to one side.

X Tighten the wheel bolts evenly in a crosswise pattern in the sequence

Flat tire 429

indicated (: to A). The tightening torque must be 110 lb-ft (150 Nm). G WARNING Have the tightening torque checked immediately after a wheel is changed. The wheels could come loose if they are not tightened to a torque of 110 lb/ft (150 Nm).

X Turn the jack back to its initial position and

store it together with the rest of the tire- change tool kit in the stowage well under the trunk floor.

i When you are driving with the emergency

spare wheel mounted, the tire pressure monitoring system cannot function reliably. Only restart the tire pressure monitoring system when the defective wheel has been replaced with a new wheel. All mounted wheels must be equipped with functioning sensors and the defective wheel should no longer be in the vehicle.

MOExtended tires (tires with run-flat properties) MOExtended tires (tires with run-flat properties) allow you to continue driving your vehicle even if one or more tires are entirely deflated. MOExtended tires may only be used in conjunction with the activated tire pressure loss warning system or with the activated tire pressure monitoring system. The maximum permissible distance which can be driven in run-flat mode depends on the load in the vehicle. You can drive 50 miles (80 km) if the vehicle is partially laden and 18 miles (30 km) if it is fully laden. The maximum permissible distance which can be driven in run-flat mode is counted from the moment the tire pressure loss warning appears in the multifunction display. You must not exceed a maximum speed of 50 mph (80 km/h).

430 Battery

G WARNING The handling characteristics of your vehicle deteriorate in run-flat mode, for example: Rwhen cornering Rwhen braking Rwhen accelerating rapidly Adapt your driving style accordingly and avoid sudden changes in direction and sudden acceleration, as well as driving over obstacles (i.e. curbs, potholes), and driving off-road. This is particularly the case when the vehicle is heavily laden. The maximum permissible distance that can be driven in run-flat mode depends to a large extent on the loads placed on the vehicle. It can be shorter due to high speeds, a heavy load, sudden changes in direction, the road surface condition, outside temperature, etc., or further if you drive carefully and conservatively. Do not continue to drive in run-flat mode if: Ryou hear banging noises. Rthe vehicle starts to shake. Ryou see smoke and smell rubber. RESP® is intervening constantly. Rthere are tears in the sidewalls of the tire. After driving in run-flat mode, you must have the wheel(s) checked for damage at a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required. The defective tire must be replaced in every case. Mercedes-Benz recommends that you use an authorized Mercedes-Benz Center for this purpose. In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop.

i When replacing one or all tires, make sure

that you only use tires marked MOExtended and of the specified size for the vehicle.

Battery Important safety notes In order for the battery to achieve the maximum possible service life, it must always be sufficiently charged. ! Have the battery checked regularly at a qualified specialist workshop, such as an authorized Mercedes-Benz Center. Adhere to the service intervals indicated in the service booklet or ask a qualified specialist workshop, such as an authorized Mercedes-Benz Center.

Have the battery charge checked more frequently if you use the vehicle mainly for short trips or if you leave it standing idle for a lengthy period. Only replace a battery with a battery that has been recommended by Mercedes-Benz. Consult an authorized Mercedes-Benz Center if you wish to leave your vehicle parked for a long period of time. G WARNING Comply with safety precautions and take protective measures when handling batteries.

Risk of explosion

Fire, naked flames and smoking are prohibited when handling the battery. Avoid creating sparks. Battery acid is caustic. Avoid contact with the skin, eyes or clothing. Wear suitable protective clothing, in particular gloves, an apron and a face mask. Immediately rinse acid splashes off with clean water. Consult a doctor if necessary.

Wear eye protection.

Keep children away.

Observe this Operator's Manual.

H Environmental note

Batteries contain dangerous substances. It is against the law to dispose of them with the household rubbish. They must be collected separately and recycled to protect the environment. Dispose of batteries in an environmentally friendly manner. Return discharged batteries to a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center, or to a special collection point for old batteries.

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.

Battery

431

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

! Before working on the battery, e.g.

loosening the battery terminals, switch off the engine and remove the SmartKey from the ignition. On vehicles with KEYLESS-GO, make sure that the ignition is switched off. Check that all the indicator lamps in the instrument cluster are off. You may otherwise destroy electronic components, such as the alternator.

! Like other batteries, the vehicle battery may discharge over time if you do not use the vehicle. In this case have the battery checked at a qualified specialist workshop, such as an authorized Mercedes-Benz Center. You can also charge the battery with a charger recommended by Mercedes- Benz. Contact an authorized Mercedes- Benz Center for more information. The battery and the cover of the positive terminal clamp must be installed securely during operation.

i Remove the SmartKey if you park the vehicle and do not require any electrical consumers. The vehicle will then use very little energy, thus conserving battery power.

The jump-starting connection point is in the engine compartment (Y page 433). X Open the hood (Y page 408). X Connect the battery charger to the positive terminal and earth point in the same order as when connecting the donor battery in the jump-starting procedure (Y page 433).

X Read the battery charger's operating

instructions before charging the battery.

432 Battery

Mercedes-Benz recommends that you do not carry out work on batteries yourself, e.g. removing or charging. Always have this work performed at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.

Charging the battery G WARNING Never charge a battery still installed in the vehicle unless a battery charger unit approved by Mercedes-Benz is being used. Gases may escape during charging and cause explosions that may result in paint damage, corrosion or personal injury. A battery charger unit specially adapted for Mercedes-Benz vehicles and tested and approved by Mercedes-Benz is available as an accessory. It permits the charging of the battery in its installed position. Contact an authorized Mercedes-Benz Center for further information and availability. Charge the battery in accordance with the separate instructions for the battery charger. G WARNING There is a risk of acid burns during the charging process due to the gases which escape from the battery. Do not lean over the battery during the charging process. G WARNING Battery acid is caustic. Avoid contact with the skin, eyes or clothing.

! Only charge the installed battery with a battery charger which has been tested and approved by Mercedes-Benz. These battery chargers allow the battery to be charged while still installed.

! Only use battery chargers with a

maximum charging voltage of 14.8 V.

! Only charge the battery using the jump-

starting connection point.

Jump-starting 433

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 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.

! Avoid repeated and lengthy starting attempts. Otherwise, non-combusted fuel may

damage the catalytic converter22 and create a risk of fire. Do not use a rapid-charging device to start the engine. Make sure the jumper cables are not damaged. Make sure the jumper cables are not touching any other metal objects when they are connected to the battery.

If your vehicle's battery is discharged, the engine can be jump-started from another vehicle or from a second battery using jumper cables. Observe the following points: X The battery is not accessible in all vehicles. If the other vehicle's battery is not accessible,

jump-start the vehicle using a second battery or a jump-starting device.

X Only jump-start the vehicle when the engine is cold and the catalytic converter system has

cooled down23.

X Do not start the engine if the battery is frozen. Let the battery thaw first. X Jump-starting may only be performed from batteries with a nominal voltage of 12 V. X Only use jumper cables which have a sufficient cross-section and insulated terminal clamps. X Make sure that the jumper cables cannot come into contact with parts, such as the pulley

or the fan. These parts move when the engine is started and while it is running.

X If the battery is fully discharged, leave the battery that is being used to jump-start connected

for a few minutes before attempting to start. This charges the empty battery a little.

i Jumper cables and further information about jump-starting can be obtained from any

authorized Mercedes-Benz Center, for example. X Make sure that the two vehicles do not touch. X Secure the vehicle by applying the electric parking brake. X Shift the transmission to position P.

22 Only vehicles with a gasoline engine. 23 Only vehicles with a gasoline engine.

434

Jump-starting

X Switch off all electrical consumers (e.g. radio, blower, etc.). X Open the hood (Y page 408).

Position number A identifies the charged battery of the other vehicle or an equivalent jump- starting device. X Remove the cover from positive terminal :. X Connect positive terminal : on your vehicle to positive terminal ; of donor battery A

using the jumper cable, beginning with your own battery.

X Start the engine of the donor vehicle and run it at idling speed. X Connect negative terminal = of donor battery A to earth point ? of your vehicle using

the jumper cable, connecting the jumper cable to donor battery A first.

X Start the engine. X Allow the engine to run for a few minutes before disconnecting the jumper cable. X First, remove the jumper cable from earth point ? and negative terminal =, then from

positive terminal : and positive terminal ;, each time disconnecting from the battery on your own vehicle first.

X Have the battery checked at a qualified specialist workshop, e.g. an authorized Mercedes- Benz Center. The jump-starting procedure is not a standard operating state; therefore, have the battery checked.

Towing and tow-starting Important safety notes G WARNING If you tow the vehicle, you must use a rigid towing bar if: Rthe engine is not running. Rthere is a brake system malfunction. Rthere is a malfunction in the power supply

or the vehicle's electrical system.

The power assistance for the steering and the brake force booster do not work when the engine is not running. You will need more force to steer and brake, you may have to depress the brake pedal with maximum force. Before towing away, make sure that the steering can be moved and is not locked. If you tow or tow-start another vehicle, its weight must not exceed the maximum permissible gross vehicle weight of your vehicle. G WARNING The vehicle is braked when the HOLD function or DISTRONIC PLUS is activated. Therefore, deactivate HOLD and DISTRONIC PLUS if the vehicle is to be towed.

It is better to have the vehicle transported than to have it towed. ! You may only tow the vehicle a maximum

distance of 30 miles (50 km). A towing speed of 30 mph (50 km/h) must not be exceeded. For towing distances over 30 miles (50 km), the vehicle must loaded onto a transporter.

! Make sure that the electric parking brake is released. If the electric parking brake is faulty, visit a qualified specialist workshop. ! Only secure the tow rope or tow bar at the towing eyes. Otherwise, the vehicle could be damaged.

Towing and tow-starting 435

! Do not use the towing eye for recovery,

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

! When towing, pull away slowly and

smoothly. If the tractive power is too high, the vehicles could be damaged.

! Do not tow with sling-type equipment.

This could damage the vehicle.

! When towing vehicles with KEYLESS-GO,

use the key instead of the Start/Stop button. Otherwise, the automatic transmission may shift to position P when the driver's or front-passenger door are opened, which could lead to damage to the transmission.

The automatic transmission must be in position N when the vehicle is being towed. The battery must be connected and charged. Otherwise, you: Rcannot turn the SmartKey to position 2 in

the ignition lock

Rcannot shift the automatic transmission to

position N

i Before the vehicle is towed, switch off the

automatic locking feature (Y page 234). You could otherwise be locked out when pushing or towing the vehicle.

Installing/removing the towing eye Installing the towing eye X Remove the towing eye from the vehicle

tool kit (Y page 424). G WARNING The exhaust tail pipe may be hot. You could burn yourself if you touch the tail pipe. Be particularly careful when removing the rear cover.

The mountings for the removable towing eyes are located in the bumpers. They are at the front and at the rear, under the covers.

436 Towing and tow-starting

X Press the mark on cover : inwards in the

direction of the arrow.

X Take cover : off the opening. X Screw the towing eye in clockwise to the

stop and tighten it.

Removing the towing eye X Loosen the towing eye and unscrew it. X Attach cover : to the bumper and press

until it engages.

X Place the towing eye in the vehicle tool kit.

Towing the vehicle with the rear axle raised Only possible on vehicles without 4MATIC. When towing your vehicle with the rear axle raised, it is important that you observe the safety instructions (Y page 435). ! The ignition must be switched off if you are towing the vehicle with the rear axle raised. Intervention by ESP® could otherwise damage the brake system.

X Switch on the hazard warning lamps

(Y page 247).

X Turn the SmartKey to position 0 in the ignition lock and remove the SmartKey from the ignition lock.

X When leaving the vehicle, take the

SmartKey or the KEYLESS-GO key with you.

Towing a vehicle with both axles on the ground When having your vehicle towed, observe the important safety notes (Y page 435). G WARNING The power assistance for the steering and the brake force booster do not work when the engine is not running. You will then need much more effort to brake and steer the vehicle. Adapt your style of driving accordingly.

The automatic transmission automatically shifts to position P when you open the driver's or front-passenger door or when you remove the SmartKey from the ignition lock. In order to ensure that the automatic transmission stays in position N when towing the vehicle, you must observe the following points: X Make sure that the vehicle is stationary and

the SmartKey in the ignition lock is in position 0.

X Turn the SmartKey to position 2 in the

ignition lock. On vehicles with KEYLESS-GO, use the key instead of the Start/Stop button (Y page 267).

X Depress and hold the brake pedal. X Shift the automatic transmission to

position N.

X Release the brake pedal. X Release the electric parking brake. X Leave the SmartKey in position 2 in the

ignition lock.

Transporting the vehicle The towing eye can be used to pull the vehicle onto a trailer or transporter for transporting purposes. X Turn the SmartKey to position 2 in the

ignition lock.

X Shift the automatic transmission to

position N.

As soon as the vehicle is loaded: X Prevent the vehicle from rolling away by

applying the electric parking brake. X Shift the automatic transmission to

position P.

X Turn the SmartKey to position 0 in the ignition lock and remove the SmartKey from the ignition lock.

X Secure the vehicle. ! Only lash the vehicle down by the wheels or wheel rims, not by parts of the vehicle such as axle or steering components. Otherwise, the vehicle could be damaged.

Notes for 4MATIC vehicles ! Vehicles with 4MATIC must not be towed with either the front or the rear axle raised, as doing so will damage the transmission.

If the vehicle has transmission damage or damage to the front or rear axle, have it transported on a transporter or trailer. In the event of damage to the electrical system If the battery is defective, the automatic transmission will be locked in position P. To shift the automatic transmission to position N, you must provide power to the vehicle's electrical system in the same way as when jump-starting (Y page 433). Have the vehicle transported on a transporter or trailer.

Fuses

437

Tow-starting (emergency starting) ! Vehicles with automatic transmission

must not be started by tow-starting. This could otherwise damage the transmission.

Fuses Important safety notes The fuses in your vehicle serve to close down faulty circuits. If a fuse blows, all the components on the circuit and their functions 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 components and/or systems. Have the cause determined and remedied by an authorized Mercedes-Benz Center.

Blown fuses must be replaced with fuses of the same rating, which you can recognize by the color and value. The fuse ratings are listed in the fuse allocation chart. An authorized Mercedes-Benz Center will be happy to advise you. i If a fuse has blown, contact a breakdown

service or an authorized Mercedes-Benz Center.

If the newly inserted fuse also blows, have the cause traced and rectified at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center. ! Only use fuses that have been approved

for Mercedes-Benz vehicles and which have the correct fuse rating for the system concerned. Otherwise, components or systems could be damaged.

438 Fuses

Before changing a fuse X Park the vehicle and apply the electric

parking brake.

X Switch off all electrical consumers. X Remove the SmartKey from the ignition

lock.

The fuses are located in various fuse boxes: Rfuse box on the right and left-hand sides of

the dashboard

Rfuse box in the rear Rfuse box in the engine compartment on the left-hand side of the vehicle, when viewed in the direction of travel

Rfuse box in the engine compartment on the right-hand side of the vehicle, when viewed in the direction of travel

The fuse allocation chart is in the vehicle document wallet.

Dashboard fuse box There is a fuse box located on both the driver's side and the front-passenger side. ! Do not use a pointed object such as a

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

X To open: pull cover : outwards in the

direction of the arrow and remove it.

X To close: clip in cover : on the front of

the dashboard.

X Fold cover : inwards until it engages.

Fuse box in the rear The fuse box is behind the armrest in the rear.

X To open: fold down the armrest. X Pull handle : on the trim behind the rear

seat armrest up in the direction of the arrow.

X Fold down trim ;.

Driver's side illustrated

X Loosen cover ? with a suitable object =. X Remove cover ? upwards in the direction

of the arrow.

! The cover must be seated properly,

otherwise moisture or dirt could impair the function of the fuses.

Fuse box in the engine compartment Fuse box on the left in the direction of travel X Open the hood (Y page 408).

X Remove any existing moisture from the

fuse box using a dry cloth.

X AMG vehicles: remove the control unit

above the fuse box.

X To open: undo screws : with an Allen

key.

X Remove bracket =. X Remove cover ;. X To close: check whether the rubber seal is

lying correctly in cover ;.

X Put cover ; back in position. X Replace bracket =. X Tighten screws : using an Allen key. ! The cover must be seated properly,

otherwise moisture or dirt could impair the function of the fuses.

X Close the hood (Y page 409).

Fuse box on the right in the direction of travel X Open the hood (Y page 408).

Fuses

439

X Remove any existing moisture from the

fuse box using a dry cloth. X To open: open clamps ;. X Remove cover ; upwards. X To close: check whether the rubber seal is

lying correctly in cover ;.

X Put cover ; back in position. X Fold down cover : and close clamps ;. ! The cover must be seated properly,

otherwise moisture or dirt could impair the function of the fuses.

X Close the hood (Y page 409).

Engine emergency off If the engine cannot be switched off as described, observe the following procedure: X Take the fuse allocation chart out of the

vehicle document wallet.

X Search for “Emergency engine shutdown”

in the fuse allocation chart.

X Remove the fuses listed under "Emergency

engine shutdown".

440

Useful information ............................ 442
Important safety notes .................... 442
Operation ........................................... 442
Winter operation ............................... 444
Tire pressure ..................................... 445
Loading the vehicle .......................... 452
Maximum load rating ....................... 456
Uniform Tire Quality Grading Standards .......................................... 457
Tire labeling ....................................... 458
Definition of terms for tires and loading ............................................... 462
Changing a wheel ............................. 465
Wheel and tire combinations ........... 466

441

442 Operation

Useful information

i This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences are possible. Please note that your vehicle may not be equipped with all features described. This also applies to safety- related systems and functions.

i Please read the information on qualified

specialist workshops (Y page 29).

Important safety notes

Consult an authorized Mercedes-Benz Center if you require information on approved and recommended tires and wheels for summer and winter operation. Advice on purchasing and caring for tires is also available there. G WARNING Replace rims or tires with the same designation, manufacturer and type as shown on the original part. For further information contact an authorized Mercedes-Benz Center. If incorrectly sized rims and tires are mounted, the wheel brakes or suspension