Page 230 of 331
228Vehicle care
Coolant levelCaution
Too low a coolant level can causeengine damage.
If the cooling system is cold, the
coolant level should be above the
filling line mark. Top up if the level is
low.
9 Warning
Allow the engine to cool before
opening the cap. Carefully open
the cap, relieving the pressure
slowly.
To top up use a 1:1 mixture of
released coolant concentrate mixed
with clean tap water. If no coolant
concentrate is available, use clean
tap water. Install the cap tightly. Have
the coolant concentration checked
and have the cause of the coolant
loss remedied by a workshop.
Washer fluid
Fill with clean water mixed with a
suitable quantity of windscreen
washer fluid which contains
antifreeze. For the correct mixing ratio refer to the washer fluid container.
Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Page 288 of 331

286Service and maintenance
Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 289.
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 3 289.
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
Only use high-performance brake
fluid approved for the vehicle, consult a workshop.Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified interval.
Brake fluid should be stored in a
sealed container to avoid water
absorption.
Ensure brake fluid does not become
contaminated.
Page 327 of 331

325
Child restraints.............................. 56
Child restraint systems ................56
Cigarette lighter .........................109
Climate control ............................. 19
Climate control systems .............155
Clock........................................... 107
Code ........................................... 128
Control indicators........................ 113
Control of the vehicle .................164
Controls ...................................... 102
Convex shape .............................. 33
Coolant and antifreeze ...............285
Cruise control ....................121, 183
Cupholders .................................. 62
Curtain airbag system .................. 54
Curve lighting.............................. 145
D Danger, Warnings and Cautions ...4
Daytime running lights ...............145
Declaration of conformity ............321
Diesel fuel system bleeding .......231
Diesel particle filter .............119, 170
Door open .................................. 121
Doors ............................................ 28
Driver assistance systems ..........183
Driver Information Centre ...........121
Driving characteristics and towing tips .............................. 220
Driving hints ................................ 164E
Electric adjustment ......................33
Electrical system......................... 252
Electric parking brake .................117
Electric parking brake fault .........117
Electronic climate control system 158
Electronic driving programmes ..173
Electronic Stability Control.......... 179
Electronic Stability Control and Traction Control system ..........118
Electronic Stability Control off..... 118
End-of-life vehicle recovery .......225
Engine compartment fuse box ...253
Engine coolant ........................... 227
Engine coolant temperature gauge ..................................... 111
Engine data ............................... 292
Engine exhaust .......................... 170
Engine identification ...................288
Engine oil ................... 226, 285, 289
Engine oil pressure ....................119
Entry lighting .............................. 152
Event data recorders ..................321
Exit lighting ................................ 153
Exterior care .............................. 280
Exterior light ............................... 120
Exterior lighting ....................16, 142
Exterior mirrors ............................. 33F
Fault ........................................... 173
First aid ......................................... 97
First aid kit ................................... 97
Fixed air vents ........................... 163
Flex-Fix system ............................ 66
Fog light ..................................... 120
Fog lights ................................... 237
Folding mirrors ............................. 33
Following distance indication ......196
Forward collision alert................. 193
Front airbag system .....................53
Front fog lights ........................... 149
Front seats.................................... 42
Front storage ................................ 63
Front turn signal lights ...............239
Fuel............................................. 213
Fuel consumption - CO 2-
Emissions ............................... 219
Fuel for diesel engines ..............213
Fuel for liquid gas operation .......213
Fuel for petrol engines ...............213
Fuel gauge ................................. 111 Fuel selector .............................. 111
Fuses ......................................... 252
G
Gauges ....................................... 110
General information ...................219