136Driving and operating
■ Transfer box and underguard
■ Engine oil pan and underguard
Observe the following: ■ Do not spray high-pressure water directly at the vehicle seals
■ The wheels must be removed to clean all mud and stones from the
brake calipers and to check brake
pad wear
■ The areas on the upper side of the underguards must be cleared of
stones, to prevent damage to the
engine oil pan and the fuel tankBrakes
The brake system comprises two
independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when the brake pedal
is depressed firmly. Considerably
more force is needed for this. The
braking distance is extended. Seek the assistance of a workshop before
continuing your journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
Control indicator R 3 85.
Antilock brake system
Antilock brake system (ABS)
prevents the wheels from locking.ABS starts to regulate brake pressure as soon as a wheel shows a tendency to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that
the pedal is pulsating. Do not reduce
the pressure on the pedal.
After starting off, the system performs a self-test which may be audible.
Control indicator u 3 86.
Fault9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
176Vehicle care
V=up to 240 km/hW=up to 270 km/h
Tyre pressureCheck the pressure of cold tyres at
least every 14 days and before any
long journey. Do not forget the spare
wheel. This also applies to vehicles
with tyre pressure monitoring system.
Use the valve cap key to make
unscrewing the valve caps easier.
The valve cap key is located on the
inside of the tank flap.
Tyre pressure 3 207.
The tyre pressure data refers to cold
tyres. It applies to summer and winter tyres.
Always inflate the spare tyre to the
pressure specified for full load.
The ECO tyre pressure serves to
achieve the smallest amount of fuel
consumption possible.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and
fuel economy and will increase tyre
wear.
The tyre pressure tables show all
possible tyre combinations 3 207.
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 shall be reduced
or increased on a vehicle with tyre
pressure monitoring system, switch
off ignition.
Tyre pressure monitoring
system The tyre pressure monitoring system
checks the pressure of all four wheels
once per 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. If
wheels without sensors are mounted,
the tyre pressure monitoring system
is not operational. Retrofitting of
sensors is possible.
Note
In countries where the tyre pressure monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle type approval.
192Vehicle care
Sunroof
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. Do not apply wax or polishing
agents to the sunroof.
Wheels and tyres Do not use high-pressure jet
cleaners.
Clean rims with a pH-neutral wheel
cleaner.
Rims are painted and can be treated
with the same agents as the body.
Paintwork damage
Rectify minor paintwork damage with
a touch-up pen before rust forms.
Have more extensive damage or rust areas repaired by a workshop.
Underbody Some areas of the vehicle underbody
have a PVC undercoating while other critical areas have a durable
protective wax coating.After the underbody is washed, check
the underbody and have it waxed if
necessary.
Bitumen/rubber materials could
damage the PVC coating. Have
underbody work carried out by a
workshop.
Before and after winter, wash the
underbody and have the protective
wax coating checked.
Towing equipment
Do not clean the coupling ball bar with
a steam-jet or high-pressure jet
cleaner.
Rear carrier system
Clean the rear carrier system with a
steam-jet or high-pressure jet cleaner
at least once a year.
Operate the rear carrier system once
in a while if not in regular use, in
particular during winter.Interior care
Interior and upholstery Only clean the vehicle interior,
including the instrument panel fascia
and panelling, with a dry cloth or
interior cleaner.
Clean the leather upholstery with
clear water and a soft cloth. In case of heavy soiling, use leather care.
The instrument cluster and the
displays should only be cleaned using
a soft damp cloth. If necessary use a
weak soap solution.
Clean fabric upholstery with a
vacuum cleaner and brush. Remove
stains with an upholstery cleaner.
Clothing fabrics may not be
colourfast. This could cause visible
discolourations, especially on light- coloured upholstery. Removable
stains and discolourations should be
cleaned as soon as possible.
Clean seat belts with lukewarm water or interior cleaner.
211
Centre high-mounted brakelight.................................. 110, 165
Change engine oil .......................89
Changing tyre and wheel size ...178
Charging system .......................... 84
Check control.............................. 100
Child locks ................................... 22
Child restraint installation locations ................................... 52
Child restraints.............................. 51
Child restraint systems ................51
Cleaning the vehicle ...................190
Climate control ............................. 15
Climate control systems .............115
Clock ............................................ 77
Clutch fluid .................................. 157
Coin storage ................................. 57
Console box.................................. 58
Console net .................................. 57
Control indicators.......................... 81
Control of the vehicle .................123
Controls ........................................ 73
Controls in steering wheel ............73
Convex shape .............................. 27
Coolant and antifreeze ...............195
Coupling ball bar ........................148
Cruise control ...................... 91, 141
Cupholders .................................. 56
Curtain airbag system .................. 49D
Danger, Warnings and Cautions ...3
Daytime running lights ...............108
Declaration of conformity ............208
Descent control system .......87, 139
Diesel fuel filter .......................... 159
Diesel fuel system bleeding .......159
Diesel particle filter .........85, 88, 128
Door open .................................... 91
Doors ............................................ 23
Drain fuel filter ............................. 90
Drink holders ................................ 56
Driver assistance systems ..........141
Driving characteristics and towing tips .............................. 147
Driving hints ................................ 123
E
Electric adjustment ......................27
Electrical parking brake ........86, 137
Electrical parking brake fault ........86
Electrical system......................... 166
Electronic climate control system 117
Electronic driving programmes ..131
Electronic Stability Control ..87, 138
Electronic Stability Control off....... 88 End-of-life vehicle recovery .......152
Engine compartment fuse box ...167
Engine coolant ........................... 154Engine coolant temperature ........88
Engine data ............................... 202
Engine exhaust .......................... 128
Engine identification ...................198
Engine oil ................... 153, 195, 199
Engine oil life monitor ...................89
Engine oil pressure ......................88
Entry lighting .............................. 113
Event data recorders ..................208
Exhaust gases ............................ 128
Exit lighting ................................ 113
Exterior care .............................. 190
Exterior lighting ....................13, 106
Exterior mirrors ............................. 27
F
Fault ........................................... 132
Fire extinguisher ........................... 70
First aid kit ................................... 70
Fixed air vents ........................... 121
Flex-Fix system ............................ 58
Fog light ....................................... 90
Fog lights .................... 109, 110, 163
Folding mirrors ............................. 28
Front airbag system .....................47
Front fog lights ........................... 109
Front passenger seat undertray ...58
Front seats.................................... 35
Front storage ................................ 57
Fuel............................................. 144