Page 179 of 209

Vehicle care177Appearance care
Exterior care LocksThe locks are lubricated at the factoryusing a high quality lock cylinder
grease. Use de-icing agent only when
absolutely necessary, as this has a
degreasing effect and impairs lock
function. After using a de-icing agent,
have the locks regreased by a
workshop.
WashingThe paintwork of your vehicle is
exposed to environmental influences.
Wash and wax your vehicle regularly.
When using automatic vehicle
washes, select a programme that
includes waxing. Restrictions for
filmed or matt painted body parts or decor tapes, see "Polishing and
waxing".
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.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.
Unpainted plastic body parts must not
be treated with wax or polishing
agents.
Page 184 of 209

182Service and maintenanceAdditional engine oil additives
The use of additional engine oil
additives could cause damage and
invalidate the warranty.
Engine 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 3 185.
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 corrosion
protection or seal against minor leaks
can cause function problems. Liability
for consequences resulting from the
use of additional coolant additives will be rejected.
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 3 121.
Page 202 of 209

200IndexAAbsorptive Glass Mat battery .....149
Accessories and vehicle modifications .......................... 143
Adaptive forward lighting .............97
Adblue .......................................... 91
AdBlue .......................... 87, 121, 181
AdBlue tank ................................ 195
Adjustable air vents ...................109
AGM battery ............................... 149
Airbag and belt tensioners ...........84
Airbag deactivation ................56, 84
Airbag label............................. 52, 56
Airbag system .............................. 52
Air conditioning regular operation ................................ 110
Air conditioning system .............. 102
Air intake .................................... 110
Air recirculation ...................102, 175
Air vents...................................... 109
Alert .............................................. 90
Antifreeze ................................... 147
Antilock brake system ................ 126
Antilock brake system (ABS) .......86
Anti-theft alarm system ................33
Anti-theft bolts............................. 171
Anti-theft locking system .............. 32
Anti-theft security lock ..................23
Appearance care ........................177
Armrest ........................................ 45Ashtrays ....................................... 78
Automatic anti-dazzle ..................38
Automatic fuel cut-off ..................117
Automatic light control .................95
Automatic locking ........................28
Autostop ............................... 88, 116
Auxiliary heater ........................... 106
B Battery ........................................ 149
Battery, jump starting.................. 174
Belts.............................................. 48 Bench seat.................................... 67
BlueInjection ............................... 121
Bonnet ....................................... 144
Bottle holders................................ 66
Brake and clutch fluid .................181
Brake assist ............................... 127
Brake fluid .................................. 148
Brakes ............................... 126, 148
Brake system ............................... 85
Breakdown.................................. 175
Bulb replacement ....................... 152
C Capacities .................................. 195
Car Pass ...................................... 20
Catalytic converter .....................121
Central locking system ................23
Centre high-mounted brake light 155
Changing tyre and wheel size ...167