Page 228 of 343

226Vehicle 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.
Power steering fluid
Caution
Extremely small amounts of
contamination can cause steering
system damage and cause it to not work properly. Do not allow
contaminates to contact the fluid
side of the reservoir cap/dipstick or
from entering the reservoir.
Power steering fluid level normally
does not have to be checked. If an
unusual noise sounds during steering or the power steering reacts
unusually, seek the assistance of a workshop.
Page 288 of 343

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
Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified
interval.
Page 339 of 343

337
Child restraints.............................. 54
Child restraint systems ................54
Cigarette lighter .........................107
Climate control ............................. 17
Climate control systems .............150
Clock........................................... 105
Code ........................................... 126
Control indicators........................ 111
Control of the vehicle .................160
Controls ...................................... 100
Convex shape .............................. 31
Coolant and antifreeze ...............285
Cruise control ....................119, 179
Cupholders .................................. 60
Curtain airbag system .................. 52
Curve lighting.............................. 140
D Danger, Warnings and Cautions ...3
Daytime running lights ...............140
Declaration of conformity ............331
Diesel fuel system bleeding .......229
Diesel particle filter .............117, 166
Door open .................................. 119
Doors ............................................ 26
Driver assistance systems ..........179
Driver Information Centre ...........119
Driving characteristics and towing tips .............................. 217
Driving hints ................................ 160E
Electric adjustment ......................31
Electrical system......................... 250
Electric parking brake .........115, 172
Electric parking brake fault .........115
Electronic climate control system 153
Electronic driving programmes ..169
Electronic Stability Control.......... 175
Electronic Stability Control and Traction Control system ..........116
Electronic Stability Control off..... 116
End-of-life vehicle recovery .......223
Engine compartment fuse box ...251
Engine coolant ........................... 225
Engine coolant temperature gauge ..................................... 109
Engine data ............................... 292
Engine exhaust .......................... 166
Engine identification ...................288
Engine oil ................... 224, 285, 289
Engine oil pressure ....................117
Entry lighting .............................. 147
Event data recorders ..................334
Exit lighting ................................ 148
Exterior care .............................. 280
Exterior light ............................... 118
Exterior lighting ....................14, 137
Exterior mirrors ............................. 31F
Fault ........................................... 169
First aid ......................................... 95
First aid kit ................................... 95
Fixed air vents ........................... 158
Flex-Fix system ............................ 64
Fog light ..................................... 119
Fog lights ................................... 235
Folding mirrors ............................. 31
Following distance indication ......192
Forward collision alert................. 189
Front airbag system .....................50
Front fog lights ........................... 144
Front seats.................................... 40
Front storage ................................ 61
Front turn signal lights ...............237
Fuel............................................. 210
Fuel consumption - CO 2-
Emissions ............................... 216
Fuel for diesel engines ..............210
Fuel for liquid gas operation .......211
Fuel for petrol engines ...............210
Fuel gauge ................................. 109 Fuel selector .............................. 109
Fuses ......................................... 250
G
Gauges ....................................... 108
General information ...................217