Page 164 of 233

162Vehicle 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 211 of 233

Service and maintenance209
Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 212.
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 3 212.
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 229 of 233

227
Coolant and antifreeze...............208
Cruise control ...................... 90, 138
Cupholders .................................. 53
Curtain airbag system .................. 45
D Danger, Warnings and Cautions ...4
Daytime running lights ...............106
Declaration of conformity ............222
Door open .................................... 90
Doors ............................................ 25
Driver assistance systems ..........138
Driver Information Centre .............90
Driving hints ................................ 122
E
Electric adjustment ......................28
Electrical system......................... 174
Electronic climate control system 115
Electronic driving programmes ..131
Electronic Stability Control.......... 135
Electronic Stability Control and Traction Control system ............88
Electronic Stability Control off....... 88
End-of-life vehicle recovery .......159
Engine compartment fuse box ...175
Engine coolant ........................... 161
Engine coolant temperature gauge ....................................... 81
Engine data ............................... 215Engine exhaust .......................... 127
Engine identification ...................211
Engine oil ................... 160, 208, 212
Engine oil pressure ......................89
Entry lighting .............................. 110
Event data recorders ..................223
Exit lighting ................................ 110
Exterior care .............................. 203
Exterior light ................................. 89
Exterior lighting ....................12, 104
Exterior mirrors ............................. 28
F
Fault ........................................... 132
First aid ......................................... 69
First aid kit ................................... 69
Fixed air vents ........................... 120
Flex-Fix system ............................ 55
Folding mirrors ............................. 28
Front airbag system .....................44
Front seats.................................... 34
Front storage ................................ 54
Front turn signal lights ...............168
Fuel............................................. 151
Fuel consumption - CO 2-
Emissions ............................... 156
Fuel for liquid gas operation .......152
Fuel for petrol engines ...............151
Fuel gauge ................................... 81Fuel selector ................................ 81
Fuses ......................................... 174
G
Gauges ......................................... 80
Glass panel .................................. 32
Glovebox ..................................... 53
Graphic-Info-Display .....................96
H Halogen headlights ....................165
Hand brake ......................... 132, 133
Hazard warning flashers ............106
Headlight flash ........................... 105
Headlight range adjustment ......106
Headlights................................... 104 Headlights when driving abroad 106
Head restraint adjustment .............8
Head restraints ............................ 33
Heated mirrors ............................. 28
Heated rear window ..................... 31
Heated steering wheel .................73
Heating ........................................ 38
Heating and ventilation system . 112
High beam ........................... 89, 105
Hill start assist ........................... 133
Horn ....................................... 13, 73