Page 171 of 231
Vehicle care169
In right-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox and
remove the cover. To close, first put
on the cover, then lock it into position.
No.Circuit1–2Instruments, info-display3Radio4Ignition switch5Windscreen washer system6Central locking system, tailgate7Central locking system8–9Courtesy lightNo.Circuit10Electrical power steering11Light switch, brake light12ABS, brake light13Heated steering wheel14Park assist, rain sensor, interior mirror
Load compartment fuse
box
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Vehicle care191Appearance 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 a
degreasing effect and impairs lock function. After using de-icing agent,
have the locks regreased by a
workshop.
Washing The paintwork of your vehicle is
exposed to environmental influences.
Wash and wax your vehicle regularly.
When using automatic car washes,
select a programme that includes
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 car wash, comply with the
car wash manufacturer's instructions.
The windscreen wipers 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.
Page 198 of 231

196Service and maintenance
aging control, whereas viscosity
grade gives information on the oil's
thickness over a temperature range.
Dexos is the newest engine oil quality
that provides optimum protection for
gasoline and diesel engines. If it is unavailable, engine oils of other listed qualities have to be used.
Recommendations for gasoline
engines are also valid for
Compressed Natural Gas (CNG),
Liquified Petroleum Gas (LPG) and
Ethanol (E85) fuelled engines.
Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 199.
Topping up engine oil
Engine oils of different manufacturers
and brands can be mixed as long as
they comply with the required engine
oil quality and viscosity.
Use of engine oil with only
ACEA A1/B1 or only A5/B5 quality is
prohibited, since it can cause long-
term engine damage under certain
operating conditions.Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 199.
Additional 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 3 199.
All of the recommended viscosity
grades are suitable for high ambient
temperatures.Coolant and antifreeze
Use only organic acid type-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. In
northern countries with very low
temperatures the factory filled coolant
provides frost protection down to
approx. -37 °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 and clutch fluid Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified
interval.
Page 226 of 231

224IndexAAccessories and vehicle modifications .......................... 145
Active head restraints ..................35
Adaptive forward lighting ..........
.................................. 85, 100, 156
Adjustable air vents ...................112
Airbag and belt tensioners ...........80
Airbag deactivation ................46, 80
Airbag label................................... 41 Airbag system .............................. 41
Air conditioning regular operation ................................ 113
Air conditioning system .............. 107
Air intake .................................... 113
Air vents...................................... 112
Antilock brake system ................ 128
Antilock brake system (ABS) .......82
Anti-theft alarm system ................25
Anti-theft locking system .............. 25
Appearance care ........................191
Apply footbrake ............................ 84 Ashtrays ....................................... 75
Automatic anti-dazzle ..................29
Automatic light control .................98
Automatic locking ........................24
Automatic transmission .............120
Auxiliary heater ........................... 112B
Battery discharge protection ......105
Battery voltage ............................. 90
Bicycle rack .................................. 54
Bonnet ....................................... 147
Brake and clutch fluid .................195
Brake and clutch system .............81
Brake assist ............................... 130
Brake fluid .................................. 150
Brake light switch ......................... 90
Brakes ............................... 128, 150
Breakdown.................................. 189
Bulb replacement ....................... 153
C Capacities .................................. 216
Car Pass ...................................... 19
Catalytic converter .....................120
Central locking system ................21
Centre console lighting ..............105
Changing tyre and wheel size ...176
Charging system .......................... 80
Child locks ................................... 24
Child restraint installation locations ................................... 49
Child restraints.............................. 48
Child restraint systems ................48
Cigarette lighter ........................... 75
Climate control ............................. 15