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246Vehicle care
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and
fuel economy and will increase tyre
wear.
Tyre pressures differ depending on
various options. For the correct tyre
pressure value, follow the procedure
below:
1. Identify the engine identifier code.
Engine data 3 274.
2. Identify the respective tyre.
The tyre pressure tables show all possible tyre combinations 3 283.
For the tyres approved for your
vehicle, refer to the EEC Certificate of
Conformity provided with your vehicle or other national registration
documents.
The driver is responsible for correct
adjustment of tyre pressure.9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to tread separation and even to tyre
blow-out at high speeds.
If the tyre pressure must be reduced
or increased on a vehicle with tyre
pressure monitoring system, switch
off ignition. After adjusting tyre
pressure, switch on ignition and
select the appropriate setting on the
page Tyre load in the Driver
Information Centre, 3 115.
Tyre pressure monitoring system
The tyre pressure monitoring system
checks the pressure of all four wheels once a minute when vehicle speed
exceeds a certain limit.
Caution
Tyre pressure monitoring system
warns only about low tyre pressure condition and does not replace
regular tyre maintenance by the
driver.
All wheels must be equipped with pressure sensors and the tyres must
have the prescribed pressure.
The current tyre pressures can be
shown in the Vehicle Information
Menu in the Driver Information
Centre.
The menu can be selected by the
buttons on the turn signal lever.
Page 265 of 297

Vehicle care263
If using a vehicle wash, comply with
the vehicle wash manufacturer's
instructions. The windscreen wiper and rear window wiper must be
switched off. Remove antenna and
external accessories such as roof
racks etc.
If you wash your vehicle by hand,
make sure that the insides of the
wheel housings are also thoroughly
rinsed out.
Clean edges and folds on opened
doors and the bonnet as well as the
areas they cover.Caution
Always use a cleaning agent with
a pH value of 4 to 9.
Do not use cleaning agents on hot surfaces.
Have the door hinges of all doors
greased by a workshop.
Do not clean the engine compartment with a steam-jet or high-pressure jet
cleaner.
Thoroughly rinse and leather-off the vehicle. Rinse leather frequently. Use
separate leathers for painted and
glass surfaces: remnants of wax on
the windows will impair vision.
Exterior lights
Headlight and other light covers are
made of plastic. Do not use any
abrasive or caustic agents, do not use an ice scraper, and do not clean them
dry.
Polishing and waxing Wax the vehicle regularly (at the
latest when water no longer beads).
Otherwise, the paintwork will dry out.
Polishing is necessary only if the paint
has become dull or if solid deposits
have become attached to it.
Paintwork polish with silicone forms a
protective film, making waxing
unnecessary.
Plastic body parts must not be treated with wax or polishing agents.Windows and windscreen wiper
blades
Use a soft lint-free cloth or chamois leather together with window cleanerand insect remover.
When cleaning the rear window from
inside, always wipe in parallel to the
heating element to prevent damage.
For mechanical removal of ice, use a
sharp-edged ice scraper. Press the
scraper firmly against the glass so
that no dirt can get under it and
scratch the glass.
Clean smearing wiper blades with a
soft cloth and window cleaner.
Glass panel
Never clean with solvents or abrasive
agents, fuels, aggressive media
(e.g. paint cleaner, acetone-
containing solutions etc.), acidic or
highly alkaline media or abrasive
pads.
Wheels and tyres
Do not use high-pressure jet
cleaners.
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291
Child restraint installationlocations ................................... 59
Child restraints.............................. 57
Child restraint systems ................57
Cigarette lighter .........................101
Climate control ............................. 15
Climate control systems .............148
Clock............................................. 99
Code ........................................... 121
Control indicators........................ 105
Control of the vehicle .................157
Controls ........................................ 94
Convex shape .............................. 28
Coolant and antifreeze ...............267
Cruise control ....................114, 177
Cupholders .................................. 64
Curtain airbag system .................. 55
Curve lighting.............................. 139
D Danger, Warnings and Cautions ...4
Daytime running lights ...............139
Declaration of conformity ............287
DEF ............................................ 164
Diesel exhaust fluid ....................164
Diesel fuel system bleeding .......228
Diesel particle filter .............112, 163
Door open .................................. 115
Door panel storage .......................65
Doors ............................................ 24Driver assistance systems..........177
Driver Information Centre ...........115
Driving characteristics and towing tips .............................. 216
Driving hints ................................ 157
E Electric adjustment ......................28
Electrical system......................... 238
Electric parking brake .................110
Electric parking brake fault .........110
Electronic climate control system 150
Electronic driving programmes ..169
Electronic Stability Control.......... 175
Electronic Stability Control and Traction Control system ..........112
Electronic Stability Control off..... 112
End-of-life vehicle recovery .......222
Engine compartment fuse box ...239
Engine coolant ........................... 225
Engine coolant temperature gauge ..................................... 104
Engine data ............................... 274
Engine exhaust .......................... 163
Engine identification ...................270
Engine oil ................... 223, 267, 271
Engine oil pressure ....................113
Entry lighting .............................. 146
Event data recorders ..................287
Exit lighting ................................ 146Exterior care .............................. 262
Exterior light ............................... 114
Exterior lighting ....................12, 136
Exterior mirrors ............................. 28
F
Fault ........................................... 169
First aid kit ................................... 90
Fixed air vents ........................... 155
Flex-Fix system ............................ 68
Fog light ..................................... 114
Fog lights ................................... 233
Folding mirrors ............................. 28
Folding tray .................................. 90
Following distance indication ......190
Forward collision alert................. 187
Front airbag system .....................53
Front fog lights ........................... 143
Front seats.................................... 37
Front storage ................................ 65
Fuel............................................. 207
Fuel consumption - CO 2-
Emissions ............................... 215
Fuel for diesel engines ..............207
Fuel for liquid gas operation .......208
Fuel for natural gas operation ...207
Fuel for petrol engines ...............207
Fuel gauge ................................. 103
Fuel selector .............................. 103
Fuses ......................................... 238