Page 193 of 263
Vehicle care191Coolant 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 approved
windscreen washer fluid which
contains antifreeze.
Page 236 of 263

234Service and maintenanceDexos 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
3 237.
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
3 237.
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 3 237.
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 3 141.
Page 259 of 263

257Clock............................................. 80
Code ............................................. 99
Collision damage repair ..............251
Control indicators.......................... 86
Control of the vehicle .................134
Controls ........................................ 77
Convex shape .............................. 29
Coolant and antifreeze ...............233
Cruise control ...................... 92, 155
Cupholders .................................. 69
Curve lighting.............................. 114
D Danger, Warnings and Cautions ...4
Daytime running lights ...............114
Declaration of conformity ............248
DEF ............................................ 141
Diesel exhaust fluid ....................141
Diesel fuel system bleeding .......194
Diesel particle filter ...............90, 140
Door open .................................... 93
Doors ............................................ 24
Driver assistance systems ..........155
Driver Information Centre .............93
Driving characteristics and towing tips .............................. 181
Driving hints ................................ 134
E Electric adjustment ......................29
Electrical system......................... 202Electric parking brake ...........89, 149
Electric parking brake fault ...........89
Electronic climate control system 126
Electronic driving programmes ..146
Electronic Stability Control.......... 152
Electronic Stability Control and Traction Control system ............90
Electronic Stability Control off....... 90
End-of-life vehicle recovery .......188
Engine compartment fuse box ...203
Engine coolant ........................... 190
Engine coolant temperature gauge ....................................... 84
Engine data ............................... 240
Engine exhaust .......................... 140
Engine identification ...................236
Engine oil ................... 189, 233, 237
Engine oil pressure ......................91
Entry lighting .............................. 121
Event data recorders ..................253
Exit lighting ................................ 121
Exterior care .............................. 228
Exterior light ................................. 92
Exterior lighting ....................12, 110
Exterior mirrors ............................. 29
F
Fault ........................................... 147
First aid ......................................... 74
First aid kit ................................... 74Fixed air vents ........................... 131
Fog light ....................................... 92
Fog lights ................................... 197
Folding mirrors ............................. 29
Following distance indication ......160
Forward collision alert................. 158
Front airbag system .....................60
Front fog lights ........................... 118
Front seats.................................... 47
Front storage ................................ 69
Front turn signal lights ...............198
Fuel............................................. 176
Fuel consumption - CO 2-
Emissions ............................... 180
Fuel for diesel engines ..............177
Fuel for petrol engines ...............176
Fuel gauge ................................... 84
Fuses ......................................... 202
G Gauges ......................................... 83
General information ...................181
Glovebox ..................................... 68
Graphic-Info-Display, Colour- Info-Display .............................. 97
Ground clearance .......................134
H Halogen headlights ....................195
Hand brake ......................... 148, 149
Hazard warning flashers ............117