Page 195 of 263

Vehicle care193
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 approved
windscreen washer fluid which
contains antifreeze.
Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
after a sudden drop in
temperature.
Use of washer fluid containing
isopropanol can damage exterior
lamps.
Washer fluid 3 234.
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.
Page 237 of 263

Service and maintenance235Dexos is the newest engine oil quality
that provides optimum protection for
petrol and diesel engines. If it is
unavailable, engine oils of other listed qualities must be used.
Select the appropriate engine oil
based on its quality and on the
minimum ambient temperature
3 238.
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
3 238.
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 on 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 3 238.
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
cold regions with very low
temperatures the factory filled coolant provides frost protection down to
approx. -37 °C. This concentrationshould 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.
Washer fluid
Only use washer fluid approved for
the vehicle to prevent damage of wiper blades, paintwork, plastic and
rubber parts. Consult a workshop.
Brake and clutch fluidOver time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified
interval.
AdBlue Only use AdBlue to reduce the
nitrogen oxides in the exhaust
emission 3 143.
Page 259 of 263

257Clock............................................. 82
Code ........................................... 101
Collision damage repair ..............252
Control indicators.......................... 88
Control of the vehicle .................136
Controls ........................................ 79
Convex shape .............................. 31
Coolant and antifreeze ...............234
Cruise control ...................... 94, 157
Cupholders .................................. 71
Curve lighting.............................. 116
D Danger, Warnings and Cautions ...4
Daytime running lights ...............116
Declaration of conformity ............249
DEF ............................................ 143
Diesel exhaust fluid ....................143
Diesel fuel system bleeding .......195
Diesel particle filter ...............92, 142
Door open .................................... 95
Doors ............................................ 26
Driver assistance systems ..........157
Driver Information Centre .............95
Driving characteristics and towing tips .............................. 183
Driving hints ................................ 136
E Electric adjustment ......................31
Electrical system......................... 204Electric parking brake ...........91, 151
Electric parking brake fault ...........91
Electronic climate control system 128
Electronic driving programmes ..148
Electronic Stability Control.......... 154
Electronic Stability Control and Traction Control system ............92
Electronic Stability Control off....... 92 End-of-life vehicle recovery .......190
Engine compartment fuse box ...205
Engine coolant ........................... 192
Engine coolant temperature gauge ....................................... 86
Engine data ............................... 241
Engine exhaust .......................... 142
Engine identification ...................237
Engine oil ................... 191, 234, 238
Engine oil pressure ......................93
Entry lighting .............................. 123
Event data recorders ..................254
Exit lighting ................................ 123
Exterior care .............................. 230
Exterior light ................................. 94
Exterior lighting ....................14, 112
Exterior mirrors ............................. 31
F
Fault ........................................... 149
First aid ......................................... 76
First aid kit ................................... 76Fixed air vents ........................... 133
Fog light ....................................... 94
Fog lights ................................... 199
Folding mirrors ............................. 31
Following distance indication ......162
Forward collision alert................. 160
Front airbag system .....................62
Front fog lights ........................... 120
Front seats.................................... 49
Front storage ................................ 71
Front turn signal lights ...............200
Fuel............................................. 178
Fuel consumption - CO 2-
Emissions ............................... 182
Fuel for diesel engines ..............179
Fuel for petrol engines ...............178
Fuel gauge ................................... 86
Fuses ......................................... 204
G Gauges ......................................... 85
General information ...................183
Glovebox ..................................... 70
Graphic-Info-Display, Colour- Info-Display .............................. 99
Ground clearance .......................136
H Halogen headlights ....................196
Hand brake ......................... 150, 151
Hazard warning flashers ............119