Page 199 of 231

Vehicle care197Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
Trailer hitch 3 159.
Appearance care
Exterior care
Locks The locks are lubricated at the factoryusing a high quality lock cylinder
grease. Use de-icing agent only when absolutely necessary, as this has adegreasing effect and impairs lockfunction. After using a de-icing agent,
have the locks regreased by a
workshop.
Washing
The paintwork of your vehicle is
exposed to environmental influences, therefore wash your vehicle regularly.
When using automatic vehicle
washes, we recommend one with
textile brushes and a programme
without wax additives. Restrictions for
filmed or matt painted body parts or
decor tapes, see "Polishing and
waxing".
Never use a steam-jet or high-
pressure jet cleaner for the engine
compartment.Wax painted parts of the vehicle
regularly.
Bird droppings, dead insects, resin,
pollen and the like should be cleaned off immediately, as they contain
aggressive constituents which can
cause paint damage.
If using a vehicle wash, comply with
the vehicle wash manufacturer's
instructions. The windscreen wipers
and rear window wiper must be
switched off and the exterior mirrors
must be folded in. 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.
Clean bright metal mouldings with a
cleaning solution approved for
aluminium, to avoid damage.
Page 204 of 231

202Service and maintenanceEngine oil viscosity grades
The SAE viscosity grade gives
information of the thickness of the oil.
Multigrade oil is indicated by two
figures, e.g. SAE 5W-30. The first
figure, followed by a W, indicates the
low temperature viscosity and the
second figure the high temperature viscosity.
Select the appropriate viscosity grade
depending on the minimum ambient
temperature 3 205.
All of the recommended viscosity
grades are suitable for high ambient
temperatures.
Coolant and antifreeze
Use only silicate-free long life coolant (LLC) antifreeze approved for the
vehicle. Consult a workshop.
The system is factory filled with
coolant designed for excellent
corrosion protection and frost
protection down to approx. -28 °C.
This concentration should be
maintained all year round. The use of additional coolant additives that
intend to give additional corrosionprotection or seal against minor leaks
can cause function problems. Liability
for consequences resulting from the
use of additional coolant additives will be rejected.
Washer fluid Use only washer fluid approved for
the vehicle to prevent damage of
wiper blades, paintwork, plastic and
rubber parts. Consult a workshop.
Brake fluid Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified
interval.
AdBlue Only use AdBlue to reduce the
nitrogen oxides in the exhaust
emission 3 137.
Page 224 of 231

222IndexAAbsorptive Glass Mat battery .....168
Accessories and vehicle modifications .......................... 162
Adaptive forward lighting ...........108
AdBlue .................. 98, 103, 137, 201
AdBlue tank ................................ 215
Adjustable air vents ...................125
AGM battery ............................... 168
Airbag and belt tensioners ...........95
Airbag deactivation ................62, 95
Airbag label............................. 57, 62
Airbag system .............................. 57
Air conditioning regular operation ................................ 126
Air conditioning system .............. 115
Air intake .................................... 126
Air recirculation ...................115, 195
Air vents...................................... 125
Alert ............................................ 102
Antifreeze ................................... 166
Antilock brake system ................ 144
Antilock brake system (ABS) .......97
Anti-theft alarm system ................36
Anti-theft bolts............................. 191
Anti-theft locking system .............. 35
Anti-theft security lock ..................24
Appearance care ........................197
Armrest ........................................ 48
Ashtrays ....................................... 88Automatic anti-dazzle ..................41
Automatic fuel cut-off ..................132
Automatic light control ...............107
Automatic locking ........................30
Autostop ............................. 131, 133
Auxiliary heater ........................... 119
B Battery ........................................ 168
Battery discharge protection ......113
Battery, jump starting.................. 194
Belts.............................................. 53 Bench seat.................................... 74
BlueInjection ............................... 137
Bonnet ....................................... 163
Bottle holders................................ 74
Brake and clutch fluid .................201
Brake assist ............................... 145
Brake fluid .................................. 167
Brakes ............................... 144, 167
Brake system ............................... 96
Breakdown.................................. 195 Bulb replacement ....................... 172
C
Capacities .................................. 215
Car Pass ...................................... 20
Catalytic converter .....................137
Central locking system ................24
Centre high-mounted brake light 174
Changing tyre and wheel size ...187