Login- Download PDF Manual
-
ces hydrogen gas. If a short circuit occurs or sparks are created, the hydrogen gas can ignite. There is a risk of an explosion. RMake sure that the positive terminal of a
connected battery does not come into con- tact with vehicle parts.
RNever place metal objects or tools on a bat-
tery.
RIt is important that you observe the descri-
bed order of the battery terminals when connecting and disconnecting a battery. RWhen jump-starting, make sure that the battery poles with identical polarity are connected.
RIt is particularly important to observe the described order when connecting and dis- connecting the jump leads.
RNever connect or disconnect the battery
terminals while the engine is running. G WARNING Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the battery. Keep children away from
Battery (vehicle)
305
batteries. Wash battery acid immediately with water and seek medical attention. H Environmental note
Batteries contain pollutants. It is illegal to dispose of them with the household rubbish. They must be collected sep- arately and disposed of in an environmentally responsible recycling system. Dispose of batteries in an environmentally responsible manner. Take discharged batteries to a qualified spe- cialist workshop or to a col- lection point for used batter- ies.
! Have the battery checked regularly at a
qualified specialist workshop. Observe the service intervals in the Service Booklet or contact a qualified specialist workshop for more information.
! Always have work on the battery carried
out at a qualified specialist workshop. Should it, in exceptional circumstances, be absolutely necessary to disconnect the bat- tery yourself, please observe the following: Rswitch off the engine and remove the
key. Check that all the indicator lamps in the instrument cluster are off. Otherwise, you may damage electronic components such as the alternator, for example.
Rfirst, disconnect the negative terminal
clamp, followed by the positive terminal clamp. Never swap the terminal clamps. The vehicle electronics may otherwise be damaged.
Ron vehicles with automatic transmission, the transmission is locked in position P after disconnecting the battery. The vehi- cle is secured against rolling away. You can then no longer move the vehicle.
306 Battery (vehicle)
The battery and the cover of the positive terminal clamp must be fitted securely dur- ing operation.
Comply with safety precautions and take pro- tective measures when handling batteries.
WARNING
Fire, naked flames and smoking are prohibited when handling the battery. Avoid creating sparks. Battery acid is caustic. Avoid con- tact 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 doc- tor if necessary. Wear eye protection.
Keep children away.
Observe this Owner's Manual.
For safety reasons, Mercedes-Benz recom- mends that you only use batteries which have been tested and approved for your vehicle by Mercedes-Benz. These batteries provide increased impact protection to prevent vehi- cle occupants from suffering acid burns should the battery be damaged in the event of an accident. In order for the battery to achieve the maxi- mum possible service life, it must always be sufficiently charged. Like other batteries, the vehicle battery may discharge over time if you do not use the vehicle. In such cases, have the battery dis- connected at a qualified specialist workshop.
You can also charge the battery with a charger recommended by Mercedes-Benz. For more information, please contact a quali- fied specialist workshop. Have the battery charge checked more fre- quently if you use the vehicle mainly for short trips or if you leave it standing idle for a lengthy period. Consult a qualified specialist workshop if you wish to leave your vehicle parked up for a long period of time. i When you park the vehicle, remove the
key if you do not require any electrical con- sumers. The vehicle will then use very little energy, thus conserving battery power.
i If the power supply has been interrupted, e.g. if the battery was discharged, you will have to: Rset the clock (audio system/COMAND
Online, see the separate operating instructions).
Rreset the function for folding the exterior mirrors in/out automatically, by folding the mirrors out once (Y page 99).
Charging the battery G WARNING During charging and jump-starting, explosive gases can escape from the battery. There is a risk of an explosion. Particularly avoid fire, naked flames, creating sparks and smoking. Ensure there is sufficient ventilation while charging and jump-starting. Do not lean over a battery. G WARNING Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the battery. Keep children away from batteries. Wash battery acid immediately with water and seek medical attention.
G WARNING A discharged battery can freeze at tempera- tures below freezing point. When jump-start- ing the vehicle or charging the battery, gases can escape from the battery. There is a risk of an explosion. Allow the frozen battery to thaw out before charging it or jump-starting.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
start connection point.
The jump-starting connection point is in the engine compartment (Y page 308). X Open the bonnet (Y page 285). 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 308).
If the indicator/warning lamps do not light up at low temperatures, it is very likely that the discharged battery has frozen. In this case you may neither jump-start the vehicle nor charge the battery. The service life of a bat- tery that has been thawed could be reduced. The starting characteristics may be impaired, especially at low temperatures. Have the thawed battery checked at a qualified spe- cialist workshop. Only charge the installed battery with a bat- tery charger which has been tested and approved by Mercedes-Benz. 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 a Mercedes-Benz Service Centre for information and availabil- ity. Read the battery charger's operating instructions before charging the battery.
Battery (vehicle)
307
308
Jump-starting
Jump-starting
For the jump-starting procedure, use only the jump-starting connection point, consisting of a positive terminal and an earth point, in the engine compartment. G WARNING Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the battery. Keep children away from batteries. Wash battery acid immediately with water and seek medical attention. G WARNING During charging and jump-starting, explosive gases can escape from the battery. There is a risk of an explosion. Particularly avoid fire, naked flames, creating sparks and smoking. Ensure there is sufficient ventilation while charging and jump-starting. Do not lean over a battery. G WARNING During the charging process, a battery produces hydrogen gas. If a short circuit occurs or sparks are created, the hydrogen gas can ignite. There is a risk of an explosion. RMake sure that the positive terminal of a connected battery does not come into contact with
vehicle parts.
RNever place metal objects or tools on a battery. RIt is important that you observe the described order of the battery terminals when connecting
and disconnecting a battery.
RWhen jump-starting, make sure that the battery poles with identical polarity are connected. RIt is particularly important to observe the described order when connecting and disconnecting
the jump leads.
RNever connect or disconnect the battery terminals while the engine is running. G WARNING A discharged battery can freeze at temperatures below freezing point. When jump-starting the vehicle or charging the battery, gases can escape from the battery. There is a risk of an explosion. Allow the frozen battery to thaw out before charging it or jump-starting. G WARNING Non-combusted fuel can collect in the exhaust system and ignite. There is a risk of fire. Avoid repeated and lengthy starting attempts.
! Vehicles with a petrol engine: avoid repeated and lengthy starting attempts. Otherwise,
the non-combusted fuel may damage the catalytic converter.
If the indicator/warning lamps do not light up at low temperatures, it is very likely that the discharged battery has frozen. In this case you may neither jump-start the vehicle nor charge the battery. The service life of a battery that has been thawed could be reduced. The starting
Jump-starting 309
characteristics may be impaired, especially at low temperatures. Have the thawed battery checked at a qualified specialist workshop. Do not use a rapid charging device to start the vehicle. If your vehicle's battery is discharged, the engine can be jump-started from another vehicle or from a second battery using jump leads. Observe the following points: RThe 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.
RVehicles with a petrol engine: only jump-start the vehicle when the engine and exhaust
system are cold.
RDo not start the engine if the battery is frozen. Let the battery thaw first. RJump-starting may only be performed from batteries with a nominal voltage of 12 V. ROnly use jump leads that have a sufficient cross-section and insulated terminal clamps. RIf 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.
RMake sure that the two vehicles do not touch. Make sure that: Rthe jump leads are not damaged. Rbare parts of the terminal clamp do not come into contact with other metal parts while the
jump leads are connected to the battery.
Rthe jump leads cannot come into contact with parts which can move when the engine is
running, such as the V-belt pulley or the fan.
X Secure the vehicle by applying the electric parking brake. X Manual transmission: shift into neutral. X Automatic transmission: shift the transmission to position P. X Turn the key to position 0 in the ignition lock and remove it. X Switch off all electrical consumers (e.g. radio, blower, etc.). X Open the bonnet (Y page 285).
310 Towing and tow-starting
Position number B identifies the charged battery of the other vehicle or an equivalent jump- starting device. X Press together cover : of positive clamp ; and slide it back. X Connect positive terminal ; on your vehicle to positive terminal = of donor battery B
using the jump lead, 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 B to earth point A of your vehicle using
the jump lead, connecting the jump lead to donor battery B first.
X Start the engine. X Before disconnecting the jump leads, let the engines run for several minutes. X First, remove the jump leads from earth point A and negative terminal ?, then from pos- itive clamp ; and positive terminal =. Begin each time at the contacts on your own vehicle first.
X Close cover : of positive clamp ; after removing the jump leads. X Have the battery checked at a qualified specialist workshop. i Jump-starting is not considered to be a normal operating condition. i Jump-starting cables and further information regarding jump starting can be obtained at
any qualified specialist workshop.
Towing and tow-starting Important safety notes G WARNING Safety-relevant functions are restricted or not available if: Rthe engine is not running. Rthe brake system or the power steering is
malfunctioning
Rthe voltage supply or the vehicle's electrical
system is malfunctioning.
If your vehicle is towed, significantly greater force may be required to steer the vehicle or to brake. There is a risk of an accident. In such circumstances, use a towing bar. Make sure that the steering is moving freely before towing.
G WARNING If the weight of the vehicle to be towed or tow- started is greater than the permissible gross weight of your vehicle: Rthe towing eye could detach itself Rthe vehicle/trailer combination could over-
turn.
There is a risk of an accident. When towing or tow-starting another vehicle, its weight should not be greater than the per- missible gross weight of your vehicle.
Information on your vehicle's gross vehicle weight rating can be found on the vehicle identification plate (Y page 338). 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.
! Only secure the tow rope or towing bar to the towing eyes. The vehicle may otherwise be damaged.
! Observe the following points when towing
with a tow rope: Rsecure the tow rope on the same side on
both vehicles.
Rmake sure that the tow rope is not longer than legally permitted. Mark the tow rope in the middle, e.g. with a white cloth (30 x 30 cm). This makes other road users aware that a vehicle is being towed.
Ronly secure the tow rope to the towing
eye.
Robserve the brake lamps of the towing vehicle while driving. Always maintain a distance so that the tow rope does not sag.
Rdo not use steel cables or chains to tow your vehicle. You could otherwise dam- age the vehicle.
! Do not use the towing eyes for recovery purposes as this could damage the vehicle. If in doubt, recover the vehicle with a crane. ! Pull away smoothly when towing away or tow-starting a vehicle. If the tractive power is too high, the vehicles could be damaged. ! You may tow the vehicle for a maximum of 50km. A towing speed of 50 km/h must not be exceeded. For towing distances over 50 km, the front axle or the entire vehicle must be raised and transported.
! Vehicles with automatic transmission
must not be tow-started. The transmission may otherwise be damaged.
Observe the legal requirements for the rele- vant countries when towing and tow-starting. It is better to have the vehicle transported than to have it towed.
Towing and tow-starting 311
Vehicles with automatic transmission: when towing a vehicle, the transmission must be in position N. The battery must be connected and charged. Otherwise, you: Rcannot turn the key in the ignition lock to
position 2
Rvehicles with automatic transmission: cannot shift the transmission to position N i Deactivate the automatic locking feature
(Y page 223). You could otherwise be locked out when pushing or towing the vehicle. Deactivate tow-away protection (Y page 70) before the vehicle is towed.
Fitting/removing the towing eye Fitting the towing eye
X Remove the towing eye from the stowage
space. The towing eye is located with the vehicle tool kit under the luggage compartment floor (Y page 299).
X Vehicles with manual transmission:
depress the clutch pedal fully and shift to neutral.
or X Vehicles with automatic transmission: shift the automatic transmission to posi- tion P.
X Release the brake pedal. X Release the electric parking brake. X Deactivate automatic locking
X Switch on the hazard warning lamps
(Y page 223).
(Y page 108).
X Turn the key in the ignition lock to position
0 and leave the key in the ignition lock.
When towing your vehicle with the front axle raised, it is important that you observe the safety instructions (Y page 310).
Towing the vehicle with both axles on the ground 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 vehi- cle. Adapt your style of driving accordingly.
i In order to signal a change of direction
when towing with the hazard warning lamps switched on, use the combination switch as usual. In this case, only the turn signals for the desired direction flash. When you reset the combination switch, the hazard warn- ing lamps start flashing again.
312 Towing and tow-starting
Vehicles with a TIREFIT kit: the towing eye is located under the tyre inflation compres- sor.
X Press the mark on cover : inwards in the
direction of the arrow.
X Remove cover : from the opening. X Screw the towing eye in clockwise to the
stop and tighten it.
Vehicles with a trailer tow hitch do not have a bracket for the screw-in towing eye at the back. If you intend to use the vehicle for tow- ing, fold out the ball coupling (Y page 203) and secure the towbar to 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 stowage well
under the luggage compartment floor (Y page 299).
X Vehicles with a TIREFIT kit: replace the tyre
inflation compressor.
Towing the vehicle with the front axle raised Only vehicles without 4MATIC can be towed with the front axle raised. ! Vehicles with 4MATIC must not be towed with the front or rear axle raised; otherwise, the transmission may be damaged.
Vehicles with 4MATIC may either be towed away with both axles on the ground or be loa- ded up and transported. ! The ignition must be switched off if you are towing the vehicle with the front axle raised. Intervention by ESP® could other- wise damage the brake system.
X Turn the key to position 2 in the ignition
lock.
X When the vehicle is stationary, depress the
brake pedal and keep it depressed.
Vehicles with automatic transmission: the automatic transmission automatically shifts to position P when you open the driver's or front-passenger door or when you remove the key from the ignition lock. In order to ensure that the automatic transmission stays in posi- tion N when towing the vehicle, you must observe the following points: X Make sure that the vehicle is stationary. X Turn the key to position 2 in the ignition
lock.
X Depress and hold the brake pedal. X Shift the automatic transmission to posi-
tion N.
Vehicles with manual transmission: X Turn the key to position 2 in the ignition
lock.
X Depress and hold the brake pedal. X Engage neutral. Vehicles with manual or automatic trans- mission: X Leave the key in position 2 in the ignition
lock.
X Release the brake pedal. X Release the electric parking brake. X Switch on the hazard warning lamps
(Y page 108).
It is important that you observe the safety instructions when towing away your vehicle (Y page 310).
Transporting 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. Oth- erwise, the vehicle could be damaged.
Towing and tow-starting 313
X Vehicles with manual transmission:
shift to neutral.
X Vehicles with automatic transmission:
turn the key to position 2 in the ignition lock.
X Move the 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 Vehicles with manual transmission:
engage first or reverse gear.
X Vehicles with automatic transmission:
shift the transmission to position P.
X Turn the key to position 0 in the ignition
lock and remove it. X Secure the vehicle. The towing eyes or trailer tow hitch can be used to pull the vehicle onto a trailer or trans- porter if you wish to transport it.
Notes for 4MATIC vehicles ! Vehicles with 4MATIC must not be towed with the front or rear axle raised; otherwise, the transmission may be damaged.
Vehicles with 4MATIC may only be either towed away with both axles on the ground or be loaded up and transported. If the vehicle has transmission damage or damage to the front or rear axle, have it trans- ported 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 308). Have the vehicle transported on a transporter or trailer.
314 Electrical fuses
Tow-starting (emergency engine starting) ! Do not tow-start vehicles with automatic transmission. You could otherwise damage the automatic transmission.
Before tow-starting, the following conditions must be fulfilled: Rthe battery is connected. Rthe engine has cooled down. Rthe exhaust system has cooled down. X Switch on the hazard warning lamps
(Y page 108).
X Fit the towing eye (Y page 311). X Secure the rigid towing bar or the towing
rope.
X Depress and hold the brake pedal. X Turn the key to position 2 in the ignition
lock.
X Depress the clutch pedal and keep it
depressed.
X Engage neutral. X Release the brake pedal. X Tow-start the vehicle. X Engage second gear. X Release the clutch pedal slowly without
depressing the accelerator pedal. The engine is started.
X Depress the clutch pedal and shift to neu-
tral.
X Stop at a suitable place. X Secure the vehicle by applying the electric
parking brake.
X Remove the rigid towing bar or towing rope. X Remove the towing eye (Y page 312). X Switch off the hazard warning lamps. When tow-starting, it is important that you observe the safety instructions (Y page 310) and the legal requirements for the relevant countries.
Electrical fuses Important safety notes G WARNING If you manipulate, bridge or replace a faulty fuse with a fuse of a higher amperage, the electric cables could be overloaded. This may result in a fire. There is a risk of an accident and injury. Always replace faulty fuses with specified new fuses of the correct amperage.
! Only use fuses that have been approved
for Mercedes-Benz vehicles and which have the correct fuse rating for the system concerned. Only use fuses marked with an "S". Components or systems could other- wise be damaged.
The fuses in your vehicle serve to disconnect faulty circuits. If a fuse blows, all the compo- nents on the circuit and their functions will fail. Blown fuses must be replaced with fuses of the same rating, which you can recognise by the colour and fuse rating. The fuse ratings are listed in the fuse allocation chart. If the newly inserted fuse also blows, have the cause traced and rectified at a qualified spe- cialist workshop, e.g. a Mercedes-Benz Service Centre.
Before replacing a fuse X Secure the vehicle against rolling away
(Y page 162).
X Switch off all electrical consumers. X Turn the key to position 0 in the ignition lock and remove it (Y page 143). All indi- cator lamps in the instrument cluster must be off.
The fuses are located in various fuse boxes: 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 front-passenger footwell
The fuse allocation chart is on the fuse box in the front-passenger footwell (Y page 315).
Fuse box in the engine compartment G WARNING When the bonnet is open, and the windscreen wipers are set in motion, you can be injured by the wiper linkage. There is a risk of injury. Always switch off the windscreen wipers and the ignition before opening the bonnet.
! Make sure that no moisture can enter the
fuse box when the cover is open.
! When closing the cover, make sure that it is lying correctly on the fuse box. Moisture seeping in or dirt could otherwise impair the operation of the fuses.
X Open the bonnet. X Remove any existing moisture from the
fuse box using a dry cloth. X To open: open clamps ;. X Fold cover : up in the direction of the
arrow and remove it.
Electrical fuses
315
X To close: check whether the seal is lying
correctly in cover :.
X Insert cover : at the back into openings
= on the fuse box. X Fold down cover :. X Hook clamps ; into the fuse box and
close.
X Close the bonnet.
Fuse box in the front-passenger foot- well
X To open: remove the floormat from the
front-passenger side.
X Fold out perforated floor covering : in the
direction of the arrow.
316 Electrical fuses
X To release cover =, press retaining
clamp ;.
X Fold out cover = in the direction of the
arrow to the catch.
X Remove cover = forwards. i Fuse allocation chart ? is located on the
lower right-hand side of cover =.
X To close: insert cover = on the left-hand
side of the fuse box into the retainer. Cover = engages in the retainers.
X Fold down cover = until clamps ; lock
audibly.
X Fold back perforated floor covering :.
Useful information ............................ 318
Important safety notes .................... 318
Operation ........................................... 318
Winter operation ............................... 320
Tyre pressure .................................... 321
Changing a wheel ............................. 324
Wheel and tyre combinations .......... 329
Emergency spare wheel ................... 332317
318 Operation
Useful information
i This Owner's Manual describes all mod- els, series and optional equipment for your vehicle that were available at the time of going to press. National variations are pos- sible. Note that your vehicle may not be equipped with all of the functions descri- bed. This is also the case for systems and functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 24).
Important safety notes
G WARNING If wheels and tyres of the wrong size are used, the wheel brakes or suspension components may be damaged. There is a risk of an acci- dent. Always replace wheels and tyres with those that fulfil the specifications of the original part. When replacing wheels, make sure to fit the correct: Rdesignation Rtype When replacing tyres, make sure to fit the correct: Rdesignation Rmanufacturer Rtype G WARNING A flat tyre severely impairs the driving, steer- ing and braking characteristics of the vehicle. There is a risk of accident. Tyres without run-flat characteristics: Rdo not drive with a flat tyre. Rimmediately replace the flat tyre with your emergency spare wheel or spare wheel, or consult a qualified specialist workshop.
Tyres with run-flat characteristics: Rpay attention to the information and warn-
ing notices on MOExtended tyres (tyres with run-flat characteristics).
Accessories that are not approved for your vehicle by Mercedes-Benz or that are not being used correctly can impair the operating safety. Before purchasing and using non-approved accessories, visit a qualified specialist work- shop and enquire about: Rsuitability Rlegal stipulations Rfactory recommendations Information on dimensions and types of wheels and tyres for your vehicle can be found (Y page 329). Information on air pressure for the tyres on your vehicle can be found: Ron the tyre pressure label on the fuel filler
flap
Runder "Tyre pressure" Modification work on the brake system and wheels is not permitted. The use of wheel spacers or brake dust shields is not permit- ted. This invalidates the general operating permit for the vehicle. i Further information on wheels and tyres can be obtained at any qualified specialist workshop.
Operation Information on driving RCheck the tyre pressures when the vehicle is heavily laden and, if necessary, adjust. RWhile driving, pay attention to vibrations, noises and unusual handling characteris- tics, e.g. pulling to one side. This may indi- cate that the wheels or tyres are damaged. If you suspect that a tyre is defective, reduce your speed immediately. Stop the vehicle as soon as possible to check the
wheels and tyres for damage. Hidden tyre damage could also be causing the unusual handling characteristics. If you find no signs of damage, have the wheels and tyres checked at a qualified specialist workshop. RWhen parking your vehicle, make sure that the tyres do not get deformed by the kerb or other obstacles. If it is necessary to drive over kerbs, speed humps or similar eleva- tions, try to do so slowly and at an obtuse angle. Otherwise, the tyres, particularly the sidewalls, may be damaged.
Regular checking of wheels and tyres G WARNING Damaged tyres can cause tyre inflation pres- sure loss. As a result, you could lose control of your vehicle. There is a risk of accident. Check the tyres regularly for signs of damage and replace any damaged tyres immediately.
Regularly check the wheels and tyres of your vehicle for damage at least once a month, as well as after driving off-road or on rough roads. Damaged wheels can cause a loss of tyre pressure. Pay particular attention to damage such as: Rcuts in the tyres Rpunctures Rtears in the tyres Rbulges on tyres Rdeformation or severe corrosion on wheels Regularly check the tyre tread depth and the condition of the tread across the whole width of the tyre (Y page 319). If necessary, turn the front wheels to full lock in order to inspect the inner side of the tyre surface. All wheels must have a valve cap to protect the valve against dirt and moisture. Do not fit anything onto the valve other than the stand- ard valve cap or other valve caps approved by Mercedes-Benz for your vehicle. Do not fit any other valve caps or systems, e.g. tyre pres- sure monitoring systems.
Operation 319
Regularly check the pressure of all the tyres, particularly prior to long trips. Adjust the tyre pressure as necessary (Y page 321). Observe the notes on the emergency spare wheel (Y page 332). The service life of tyres depends on various factors, including the following: Rdriving style Rtyre pressure Rtyre mileage
Tyre tread G WARNING Insufficient tyre tread will reduce tyre trac- tion. The tyre is no longer able to dissipate water. This means that on wet road surfaces, the risk of aquaplaning increases, in particular where speed is not adapted to suit the driving conditions. There is a risk of accident. If the tyre pressure is too high or too low, tyres may exhibit different levels of wear at differ- ent locations on the tyre tread. Thus, you should regularly check the tread depth and the condition of the tread across the entire width of all tyres. Minimum tyre tread depth for: Rsummer tyres: 3 mm RM+S tyres: 4 mm For safety reasons, replace the tyres before the legally prescribed limit for the minimum tyre tread depth is reached..
Selecting, fitting and replacing tyres ROnly fit tyres and wheels of the same type
and make. Exception: it is permissible to fit a different type or make in the event of a flat tyre. Observe the "MOExtended tyres (tyres with run-flat characteristics)" section (Y page 300).
ROnly fit tyres of the correct size onto the
wheels.
320 Winter operation
RRun in new tyres at moderate speeds for the first 100 km. They only reach their full performance after this distance.
RDo not drive with tyres which have too little
tread depth. This otherwise significantly reduces the traction on wet roads (aqua- planing).
RReplace the tyres after six years at the lat-
est, regardless of wear. Observe the notes on the emergency spare wheel (Y page 332).
MOExtended tyres (tyres with run-flat characteristics) With MOExtended tyres (tyres with run-flat characteristics), you can continue to drive your vehicle even if there is a total loss of pressure in one or more tyres. MOExtended tyres may only be used in con- junction with an active tyre pressure loss warning system and only on wheels specifi- cally tested by Mercedes-Benz. Notes on driving with MOExtended tyres with a flat tyre (Y page 300). i Vehicles with MOExtended tyres are not equipped with a TIREFIT kit at the factory. It is therefore recommended that you addi- tionally equip your vehicle with a TIREFIT kit if you fit tyres that do not feature run-flat characteristics, e.g. winter tyres. A TIREFIT kit can be obtained from a qualified spe- cialist workshop.
Winter operation General notes Have your vehicle winterproofed at a qualified specialist workshop at the onset of winter. Observe the notes in the "Changing a wheel" section (Y page 324).
Driving with summer tyres At temperatures below +7 †, summer tyres lose elasticity and therefore traction and braking power. Change the tyres on your vehi- cle to M+S tyres. Using summer tyres at very cold temperatures could cause tears to form, thereby damaging the tyres permanently. Mercedes-Benz cannot accept responsibility for this type of damage.
M+S tyres G WARNING M+S tyres with a tyre tread depth of less than 4 mm are not suitable for use in winter as they do not provide sufficient traction. There is a risk of accident. M+S tyres with a tread depth of less than 4 mm must be replaced.
At temperatures below +7 †, use winter tyres or all-season tyres. Both types of tyre are identified by the M+S marking. Only winter tyres bearing the i snowflake symbol in addition to the M+S marking pro- vide the best possible grip in wintry road con- ditions. Only these tyres will allow driving safety systems such as ABS and ESP® to function optimally in winter. These tyres have been developed specifically for driving in snow. Use M+S tyres of the same make and tread on all wheels to maintain safe handling char- acteristics. Always observe the maximum permissible speed specified for the M+S tyres you have fitted. If you fit M+S tyres that have a lower maxi- mum permissible speed than that of the vehi- cle, affix an appropriate warning sign in the driver's field of vision. This can be obtained at a qualified specialist workshop. Under these circumstances, you should also restrict the maximum speed of the vehicle using permanent SPEEDTRONIC so that it
Tyre pressure 321
does not exceed the maximum permissible speed for the M+S tyres(Y page 172). When you have fitted the M+S tyres: X Check the tyre pressures (Y page 321). X Restart the tyre pressure loss warning sys-
tem (Y page 323).
For more information on driving with the emergency spare wheel, see (Y page 332).
Snow chains G WARNING If snow chains are fitted to the rear wheels, they may scrape against the vehicle body or chassis components. This could cause dam- age to the vehicle or the tyres. There is a risk of an accident. To avoid hazardous situations: Rnever fit snow chains on the rear wheels Ralways fit snow chains in pairs to the front
wheels.
! Vehicles with steel wheels: if you fit
snow chains on steel wheels, you may dam- age the hub caps. Remove the hub caps from the relevant wheels before fitting the snow chains.
For safety reasons, Mercedes-Benz recom- mends that you only use snow chains that have been specially approved for your vehicle by Mercedes-Benz, or that are of a corre- sponding standard of quality. If you intend to fit snow chains, please bear the following points in mind: Rsnow chains cannot be fitted to all wheel- tyre combinations. Permissible wheel-tyre combinations (Y page 329).
Ronly use snow chains when the road sur- face is completely snow-covered. Remove the snow chains as soon as possible when you come to a road that is not snow-cov- ered.
Rlocal regulations may restrict the use of
snow chains. Observe the appropriate reg- ulations if you wish to fit snow chains.
Rdo not exceed the maximum permissible
speed of 50 km/h.
Rwhen snow chains are fitted, never use
Active Parking Assist (Y page 186).
i You may wish to deactivate
ESP®(Y page 65) when pulling away with snow chains fitted. This way you can allow the wheels to spin in a controlled manner, achieving an increased driving force (cut- ting action).
Information about driving with an emergency spare wheel (Y page 332).
Tyre pressure Tyre pressure specifications G WARNING Tyres with too low or too high tyre pressure contain the following hazards: Rthey can burst, in particular if the vehicle is
heavily laden or when driven at high speeds.
Rthe tyres can wear excessively and/or
unevenly, which can severely impair tyre traction.
Rthe driving, steering and braking character-
istics may be severely impaired.
There is a risk of accident. Follow recommended tyre inflation pressures and check the pressure of all the tyres includ- ing the spare wheel: Rat least every two weeks Rif the load changes Rbefore beginning a long journey Rfor changed operating conditions, e.g. off-
road driving
If necessary, correct the tyre pressure.
322 Tyre pressure
G WARNING If you fit unsuitable accessories onto tyre valves, the tyre valves may be overloaded and malfunction, which can cause tyre pressure loss. Due to their design, retrofitted tyre pres- sure monitors keep the tyre valve open. This can also result in tyre pressure loss. There is a risk of accident. Only screw standard valve caps or valve caps specifically provided by Mercedes-Benz for your vehicle onto the tyre valve. G WARNING If the tyre pressure drops repeatedly, the wheel, valve or tyre may be damaged. Tyre pressure that is too low may result in a tyre blow-out. There is a risk of accident. RCheck the tyre for foreign objects. RCheck whether the wheel is losing air or the
valve is leaking.
If you are unable to rectify the damage, con- tact a qualified specialist workshop. H Environmental note Check the tyre pressure regularly, at least every 14 days.
You will find a table of tyre pressures for var- ious operating conditions on the inside of your vehicle's fuel filler flap. Operation with an emergency spare wheel (Y page 332). Operation with a trailer: the applicable value for the rear tyres is the maximum tyre pressure value stated in the table inside the fuel filler flap. The table inside the fuel filler flap may state tyre pressures for different load conditions. These are defined in the table as different numbers of passengers and amounts of lug- gage. The actual number of seats may vary; for more information, please refer to the vehi- cle's registration documents. If tyre sizes are not specified, the tyre pres- sures stated on the tyre pressure information
label apply for all tyres approved for this vehi- cle.
If a tyre size precedes a tyre pressure, the following tyre pressure information is only valid for that tyre size. Use a suitable pressure gauge to check the tyre pressure. The outer appearance of a tyre does not permit any reliable conclusion about the tyre pressure. If possible, only correct tyre pressures when the tyres are cold. The tyres are cold: Rif the vehicle has been parked with the tyres
out of direct sunlight for at least three hours and
Rif the vehicle has not been driven further
than 1.6 km
Depending on the ambient temperature, the speed at which you are driving and the load on the tyres, the tyre temperature and thus the tyre pressure change by approximately 10 kPa per 10 † (0.1 bar/1.5 psi). Take this into account when checking the pressure of warm tyres. Only correct the tyre pressure if it is too low for the current operating condi- tions. Driving with tyre pressure that is too high or too low can: Rshorten the service life of the tyres Rcause increased tyre damage Rhave a negative effect on handling charac-
teristics and thus the driving safety (e.g. aquaplaning)
Tyre pressure 323
i The tyre pressure values given for low
loads are minimum values which offer you good ride comfort characteristics. However, you can also use the values given for higher loads. These are permissible and will not adversely affect the running of the vehicle.
Tyre pressure loss warning system Important safety notes While the vehicle is in motion, the tyre pres- sure loss warning system monitors the set tyre pressure using the rotational speed of the wheels. This enables the system to detect significant pressure loss in a tyre. If the speed of rotation of a wheel changes as a result of a loss of pressure, a corresponding warning message will appear in the multifunction dis- play. The tyre pressure warning system does not warn you of an incorrectly set tyre pressure. Observe the notes on the recommended tyre pressure (Y page 321). The tyre pressure loss warning system does not replace the need to regularly check your vehicle's tyre pressures, since an even loss of pressure on several tyres at the same time cannot be detected by the tyre pressure loss warning system. The tyre pressure monitor is not able to warn you of a sudden loss of pressure, e.g. if the tyre is penetrated by a foreign object. In the event of a sudden loss of pressure, bring the vehicle to a halt by braking carefully. Avoid abrupt steering manoeuvres. The function of the tyre pressure loss warning system is limited or delayed if: Rsnow chains are fitted to your vehicle's
tyres.
Rroad conditions are wintry. Ryou are driving on sand or gravel. Ryou adopt a very sporty driving style (cor- nering at high speeds or driving with high rates of acceleration).
Ryou are towing a very heavy or large trailer. Ryou are driving with a heavy load (in the
vehicle or on the roof).
Restarting the tyre pressure loss warn- ing system Restart the tyre pressure loss warning system if you have: Rchanged the tyre pressure Rchanged the wheels or tyres Rfitted new wheels or tyres X Before restarting, make sure that the tyre pressures are set properly on all four tyres for the respective operating conditions. The recommended tyre pressures can be found in the table on the fuel filler flap. The tyre pressure loss warning system can only give reliable warnings if you have set the correct tyre pressure. If an incorrect tyre pressure is set, these incorrect values will be monitored.
X Observe the notes on tyre pressure
(Y page 321).
X Make sure that the key is in posi-
tion 2(Y page 143) in the ignition lock. X Press the = or ; button on the steer- ing wheel to select the Service menu. X Press the 9 or : button to select Tyre pressure. X Press the a button. The Run Flat Indicator active Restart with OK message appears in the multifunction display.
If you wish to confirm the restart: X Press the a button. The Tyre press. now OK? message appears in the multifunction display. X Press the 9 or : button to select Yes. X Press the a button. The Run Flat Indicator restarted message appears in the multifunction dis- play.
324 Changing a wheel
After a teach-in period, the tyre pressure loss warning system will monitor the set tyre pressures of all four tyres.
or If you wish to cancel the restart: X Press the % button. or X If the Tyre press. now OK? message appears, use the 9 or : button to select Cancel. X Press the a button.
The tyre pressure values stored at the last restart will continue to be monitored.
Changing a wheel Flat tyre You can find information on what to do in the event of flat tyre in the "Flat tyre" section (Y page 300). You will also find information on driving with MOExtended tyres in the event of a flat tyre. Vehicles with an emergency spare wheel: in the event of a flat tyre, the emer- gency spare wheel is fitted according to the description under "Fitting a wheel" (Y page 325).
Interchanging the wheels G WARNING Interchanging the front and rear wheels may severely impair the driving characteristics if the wheels or tyres have different dimensions. The wheel brakes or suspension components may also be damaged. There is a risk of acci- dent. Interchange front and rear wheels only if the wheels and tyres are of the same dimensions.
Interchanging the front and rear wheels of differing dimensions can render the general operating permit invalid.
Always pay attention to the instructions and safety notes when changing a wheel (Y page 324). The wear patterns on the front and rear tyres differ, depending on the operating conditions. Interchange the wheels before a clear wear pattern has formed on the tyres. Front tyres typically wear more on the shoulders and the rear tyres in the centre. On vehicles that have the same size front and rear wheels, you can interchange the wheels every 5,000km to 10,000 km depending on the degree of tyre wear. Maintain the direc- tion of tyre rotation. Clean the contact surfaces of the wheel and the brake disc thoroughly every time a wheel is interchanged. Check the tyre pressure and, if necessary, restart the tyre pressure loss warning system.
Direction of rotation Tyres with a specified direction of rotation have additional benefits, e.g. if there is a risk of aquaplaning. You will only gain these ben- efits if the correct direction of rotation is observed. An arrow on the sidewall of the tyre indicates its correct direction of rotation.
Storing wheels Store wheels that are not being used in a cool, dry and preferably dark place. Protect the tyres against oil, grease, petrol and diesel.
Cleaning the wheels G WARNING The water jet of circular-jet nozzles (dirt grind- ers) can cause damage not visible from the outside to tyres or chassis components. Com- ponents damaged in this way can unexpect- edly fail. There is a risk of an accident.
Do not use high-pressure cleaners with circu- lar-jet nozzles to clean the vehicle. Have dam- aged tyres or chassis components replaced immediately.
Fitting a wheel Preparing the vehicle X Stop the vehicle on solid, non-slippery and
level ground.
X Apply the electric parking brake manually
X Bring the front wheels into the straight-
(Y page 163).
ahead position.
X Vehicles with manual transmission:
engage first or reverse gear.
X Vehicles with automatic transmission:
move the DIRECT SELECT lever to P.
X Switch off the engine. X Remove the key from the ignition lock. X If a trailer is coupled to the vehicle, uncou-
ple it.
X If included in the vehicle equipment,
remove the tyre-change tool kit from the vehicle.
X Secure the vehicle to prevent it from rolling
away.
i Apart from certain country-specific varia- tions, vehicles are not equipped with a tyre- change tool kit. For information on which tools are required to perform a wheel change on your vehicle, consult a Mercedes-Benz Service Centre. Necessary wheel-changing tools can include, for example: RJack RWheel chock RWheel wrench
Changing a wheel
325
Securing the vehicle against rolling away
If your vehicle is equipped with a wheel chock, it can be found in the tyre-change tool kit (Y page 299). 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.
326 Changing a wheel
Securing the vehicle on slight downhill gradients X On light downhill gradients: place
chocks or other suitable items in front of the wheels of the front and rear axle.
Raising the vehicle G WARNING If you do not position the jack correctly at the appropriate jacking point of the vehicle, the jack could tip over with the vehicle raised. There is a risk of injury. Only position the jack at the appropriate jack- ing point of the vehicle. The base of the jack must be positioned vertically, directly under the jacking point of the vehicle.
Observe the following when raising the vehicle: Rto raise the vehicle, only use the vehicle-
specific jack that has been tested and approved by Mercedes-Benz. If the jack is used incorrectly, it could tip over while the vehicle is raised.
Rthe jack is designed only to raise and hold the vehicle for a short time while a wheel is being changed. It is not suitable for per- forming maintenance work under the vehi- cle.
Ravoid changing the wheel on uphill and
downhill slopes.
Rbefore raising the vehicle, secure it from
rolling away by applying the parking brake and positioning wheel chocks. Never release the parking brake while the vehicle is raised.
Rthe jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a large, load-bearing underlay must be used. On a slippery surface, a non-slip underlay must be used, e.g. rubber mats.
Rdo not use wooden blocks or similar
objects as a jack underlay. Otherwise, the jack will not be able to achieve its load- bearing capacity due to the restricted height.
Rmake sure that the distance between the underside of the tyres and the ground does not exceed 3 cm.
Rnever place your hands or feet under the
raised vehicle.
Rnever lie under the raised vehicle. Rnever start the engine when the vehicle is
raised.
Rnever open or close a door or the tailgate
when the vehicle is raised.
Rmake sure that no persons are present in
the vehicle when the vehicle is raised.
Steel wheel with wheel trim X Vehicles with steel wheels: carefully
reach into two of the wheel trim openings and remove the wheel trim.
Vehicles with hub caps: the hub cap covers the wheel bolts. Before you can unscrew the wheel bolts, you must remove the hub cap.
Changing a wheel
327
X To remove: turn the centre cover of hub
cap : anti-clockwise and remove.
X To fit: before fitting, ensure that hub
cap : is in the open position. To do so, turn the centre cover anti-clockwise.
X Put hub cap : in position and turn the centre cover clockwise until you feel and hear hub cap : engage.
X Make sure that hub cap : is fitted
securely.
X Using wheel wrench :, loosen the bolts on the wheel you wish to change by about one full turn. Do not unscrew the bolts com- pletely.
The jacking points are located just behind the front wheel arches and just in front of the rear wheel arches (arrows).
Covers, front (example: vehicles with AMG equip- ment) AMG vehicles and vehicles with AMG equipment: the vehicle has covers fitted next to the jacking points on the outer sills to pro- tect the vehicle body. X AMG vehicles and vehicles with AMG
equipment: fold cover ; upwards.
X Take the ratchet ring spanner out of the tyre-changing tool kit and place it on the hexagon nut of the jack so that the letters AUF are visible.
328 Changing a wheel
X Position jack ? at jacking point =.
X Make sure that the base of the jack is posi-
tioned vertically under the jacking point. X Turn ratchet ring spanner A until jack ? sits completely on jacking point = and the base of the jack lies evenly on the ground. X Turn ratchet ring spanner A until the tyre
is raised a maximum of 3 cm from the ground.
Removing a wheel ! Do not place wheel bolts in sand or dirt. The threads of the wheel bolts and wheel hubs could otherwise be damaged when the bolts are tightened.
X Unscrew the wheel bolts. X Remove the wheel.
Fitting a new wheel G WARNING Oiled or greased wheel bolts or damaged wheel bolts/hub threads can cause the wheel bolts to come loose. As a result, you could lose a wheel while driving. There is a risk of accident. Never oil or grease wheel bolts. In the event of damage to the threads, contact a qualified specialist workshop immediately. Have the damaged wheel bolts or hub threads replaced/renewed. Do not continue driving. G WARNING If you tighten the wheel bolts or wheel nuts when the vehicle is raised, the jack could tip over. There is a risk of injury. Only tighten the wheel bolts or wheel nuts when the vehicle is on the ground.
Always pay attention to the instructions and safety notices in "Changing a wheel" (Y page 324). Only use wheel bolts that have been designed for the wheel and the vehicle. For safety rea- sons, Mercedes-Benz recommends that you only use wheel bolts which have been approved for Mercedes-Benz vehicles and the respective wheel.
X Clean the wheel and wheel hub contact
surfaces.
X Place the new wheel on the wheel hub and
push it on.
X Tighten the wheel bolts until they are fin-
ger-tight.
Lowering the vehicle G WARNING The wheels could work loose if the wheel nuts and bolts are not tightened to the specified tightening torque. There is a risk of accident. Have the tightening torque immediately checked at a qualified specialist workshop after a wheel is changed.
X Place the ratchet ring spanner onto the
hexagon nut of the jack so that the letters AB are visible.
X Turn the ratchet ring spanner until the vehi-
cle is once again standing firmly on the ground.
X Place the jack to one side. X Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indicated (: to A). The tightening torque must be 130 Nm.
X Turn the jack back to its initial position. X Stow the jack and the rest of the vehicle
tools in the vehicle again.
X Vehicles with AMG equipment: insert the
cover into the outer sill.
X Check the air pressure of the newly fitted
wheel and adjust accordingly. Observe the recommended tyre pressure (Y page 321).
Wheel and tyre combinations
329
Wheel and tyre combinations General notes ! For safety reasons, Mercedes-Benz rec-
ommends that you only use tyres and wheels which have been approved by Mercedes-Benz specifically for your vehi- cle. These are specially adapted to the control systems, such as ABS or ESP® and are marked as follows: RMO = Mercedes-Benz Original RMOE = Mercedes-Benz Original Extended (tyres featuring run-flat characteristics) RMO1 = Mercedes-Benz Original (only cer-
tain AMG tyres)
Mercedes-Benz Original Extended tyres may only be used on wheels that have been specifically approved by Mercedes-Benz. Only use tyres, wheels or accessories tes- ted and approved by Mercedes-Benz. Cer- tain characteristics, e.g. handling, vehicle noise emissions or fuel consumption, may otherwise be adversely affected. In addi- tion, when driving with a load, tyre dimen- sion variations could cause the tyres to come into contact with the bodywork and axle components. This could result in dam- age to the tyres or the vehicle. Mercedes-Benz accepts no liability for damage resulting from the use of tyres, wheels or accessories other than those tes- ted and approved. Further information about wheels, tyres and approved combinations can be obtained from any qualified specialist workshop.
! Retreaded tyres are neither tested nor recommended by Mercedes-Benz, since previous damage cannot always be detec- ted on retreaded tyres. As a result, Mercedes-Benz cannot guarantee vehicle safety if retreaded tyres are fitted. Do not fit used tyres if you have no information about their previous usage.
In the following table, the wheel/tyre combi- nations are allocated to the vehicle models through variants, e.g. V1, V2 etc.:
V1 A 18012
V2 A 180 CDI12
V3 A 20012, A 220 CDI12
V4 A 200 CDI12
V5 A 25012
V6 A 250 Sport V7 A 45 AMG 4MATICi Not all wheel/tyre combinations can be
fitted at the factory in all countries.
330 Wheel and tyre combinations
! Large wheels: the lower the section width for a certain wheel size, the lower the ride comfort is on poor road surfaces. Roll com- fort and suspension comfort are reduced and the risk of damage to the wheels and tyres as a result of driving over obstacles increases.
Overview of abbreviations used in the follow- ing tyre tables: RBA: both axles RFA: front axle RRA: rear axle You will find a table with recommended tyre pressures for various operating conditions on the inside of your vehicle's fuel filler flap. For further information on tyre pressure, see (Y page 321). Check tyre pressures regularly and only when the tyres are cold. Notes on the vehicle equipment – always fit the vehicle: Rwith tyres of the same size on a given axle
(left/right)
Rwith the same type of tyres at a given time (summer tyres, winter tyres, MOExtended tyres) Exception: it is permissible to fit a different type or make in the event of a flat tyre. Observe the "MOExtended tyres (tyres with run-flat characteristics)" section (Y page 300).
Vehicles with MOExtended tyres are not equipped with a TIREFIT kit at the factory. It is therefore recommended that you addition- ally equip your vehicle with a TIREFIT kit if you fit tyres that do not feature run-flat charac- teristics, e.g. winter tyres. A TIREFIT kit can be obtained from a qualified specialist work- shop.
