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248Vehicle 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 3 276.
2. Identify the respective tyre.
The tyre pressure tables show all possible tyre combinations 3 285.
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, 3 117.
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 267 of 299

Vehicle care265
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.
Do not use hard objects to remove
spots of tar. Use tar removal spray on
painted surfaces.
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 cleaner and 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.
Page 295 of 299

293
Child restraint installationlocations ................................... 61
Child restraints.............................. 59
Child restraint systems ................59
Cigarette lighter .........................103
Climate control ............................. 17
Climate control systems .............150
Clock........................................... 101
Code ........................................... 123
Control indicators........................ 107
Control of the vehicle .................159
Controls ........................................ 96
Convex shape .............................. 30
Coolant and antifreeze ...............269
Cruise control ....................116, 179
Cupholders .................................. 66
Curtain airbag system .................. 57
Curve lighting.............................. 141
D Danger, Warnings and Cautions ...4
Daytime running lights ...............141
Declaration of conformity ............289
DEF ............................................ 166
Diesel exhaust fluid ....................166
Diesel fuel system bleeding .......230
Diesel particle filter .............114, 165
Door open .................................. 117
Door panel storage .......................67
Doors ............................................ 26Driver assistance systems..........179
Driver Information Centre ...........117
Driving characteristics and towing tips .............................. 218
Driving hints ................................ 159
E Electric adjustment ......................30
Electrical system......................... 240
Electric parking brake .................112
Electric parking brake fault .........112
Electronic climate control system 152
Electronic driving programmes ..171
Electronic Stability Control.......... 177
Electronic Stability Control and Traction Control system ..........114
Electronic Stability Control off..... 114
End-of-life vehicle recovery .......224
Engine compartment fuse box ...241
Engine coolant ........................... 227
Engine coolant temperature gauge ..................................... 106
Engine data ............................... 276
Engine exhaust .......................... 165
Engine identification ...................272
Engine oil ................... 225, 269, 273
Engine oil pressure ....................115
Entry lighting .............................. 148
Event data recorders ..................289
Exit lighting ................................ 148Exterior care .............................. 264
Exterior light ............................... 116
Exterior lighting ....................14, 138
Exterior mirrors ............................. 30
F
Fault ........................................... 171
First aid kit ................................... 92
Fixed air vents ........................... 157
Flex-Fix system ............................ 70
Fog light ..................................... 116
Fog lights ................................... 235
Folding mirrors ............................. 30
Folding tray .................................. 92
Following distance indication ......192
Forward collision alert................. 189
Front airbag system .....................55
Front fog lights ........................... 145
Front seats.................................... 39
Front storage ................................ 67
Fuel............................................. 209
Fuel consumption - CO 2-
Emissions ............................... 217
Fuel for diesel engines ..............209
Fuel for liquid gas operation .......210
Fuel for natural gas operation ...209
Fuel for petrol engines ...............209
Fuel gauge ................................. 105
Fuel selector .............................. 105
Fuses ......................................... 240