Page 156 of 217

154Vehicle care
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.
Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Brakes
In the event of minimum thickness ofthe brake lining, a squealing noise
sounds during braking.
Continued driving is possible but
have the brake lining replaced as
soon as possible.
Once new brake linings are installed,
do not brake unnecessarily hard for
the first few journeys.
Brake fluid
9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
Page 198 of 217

196Service and maintenance
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 silicate-free long life coolant
(LLC) antifreeze. 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 213 of 217

211
Cruise control ...................... 86, 130
Cupholders .................................. 50
Curtain airbag system .................. 41
D Danger, Warnings and Cautions ...4
Daytime running lights ...............104
Declaration of conformity ............208
Door open .................................... 87
Doors ............................................ 22
Driver assistance systems ..........130
Driver Information Centre .............87
Driving hints ................................ 119
E
Electric adjustment ......................25
Electrical system......................... 164
Electronic climate control system 113
Electronic Stability Control.......... 127
Electronic Stability Control and Traction Control system ............85
End-of-life vehicle recovery .......151
Engine compartment fuse box ...165
Engine coolant ........................... 153
Engine coolant temperature gauge ....................................... 78
Engine data ............................... 202
Engine exhaust .......................... 124
Engine identification ...................198
Engine oil ................... 152, 195, 199Engine oil pressure ......................86
Entry lighting .............................. 108
Event data recorders ..................208
Exit lighting ................................ 108
Exterior care .............................. 191
Exterior light ................................. 86
Exterior lighting ....................12, 102
Exterior mirrors ............................. 25
F
First aid ......................................... 66
First aid kit ................................... 66
Fixed air vents ........................... 118
Flex-Fix system ............................ 52
Folding mirrors ............................. 26
Front airbag system .....................40
Front seats.................................... 31 Front storage ................................ 51
Front turn signal lights ...............160
Fuel............................................. 144
Fuel consumption - CO 2-
Emissions ............................... 149
Fuel for liquid gas operation .......144
Fuel for petrol engines ...............144
Fuel gauge ................................... 78 Fuel selector ................................ 78
Fuses ......................................... 164G
Gauges ......................................... 77
Glass panel .................................. 29
Glovebox ..................................... 50
Graphic-Info-Display, Colour- Info-Display .............................. 91
H Halogen headlights ....................157
Hand brake ......................... 125, 126
Hazard warning flashers ............104
Headlight flash ........................... 103
Headlight range adjustment ......104
Headlights................................... 102 Headlights when driving abroad 104
Head restraint adjustment .............8
Head restraints ............................ 30
Heated mirrors ............................. 26
Heated rear window ..................... 29
Heated steering wheel .................70
Heating ........................................ 34
Heating and ventilation system . 110
High beam ........................... 86, 103
Hill start assist ........................... 126
Horn ....................................... 13, 70
I
Identification plate .....................197
Ignition switch positions .............120
Immobiliser ............................ 25, 86