Page 241 of 321

Vehicle care239Depending on the engine, the
position of the coolant container may be different.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
a sudden drop in temperature.
Washer fluid 3 282.
Brakes
In the event of minimum thickness of
the 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 fluid9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
Page 258 of 321
256Vehicle careNo.Circuit52–53–54–55–56Starter57–58–59Left headlight (LED)60Cooling fan61–62–63–64–65Climate control66–67–68–No.Circuit69Right high beam (Halogen) /
Right headlight (LED)70Left high beam (Halogen)71–72Starter73–74Transmission control module75Engine control module76Exhaust reduction system77–78Horn79Washer system80–81Engine control module82–83Ignition coil84Ignition coil85PowertrainNo.Circuit86–87Diesel fuel heating88Air shutter89–90–91–92After boil pump93Electronic key system94–95Coolant pump96Diesel fuel heating97–98–99Coolant pump
After having changed defective fuses,
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunction may occur.
Page 285 of 321

Service and maintenance283Engine 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 3 286.
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 Use only washer fluid approved for
the vehicle to prevent damage of wiper blades, paintwork, plastic and
rubber parts. Consult a workshop.
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.
AdBlue Only use AdBlue to reduce the
nitrogen oxides in the exhaust
emission 3 166.
Page 317 of 321

315Child restraint systems ................63
Climate control ............................. 15
Clock............................................. 91
Collision damage repair ..............307
Control indicators........................ 104
Control of the vehicle .................157
Controls ........................................ 87
Convex shape .............................. 36
Coolant and antifreeze ...............282
Cruise control ....................110, 181
Cupholders .................................. 72
Curtain airbag system .................. 61
Curve lighting.............................. 137
D Danger, Warnings and Cautions ...4
Daytime running lights ...............137
Declaration of conformity ............303
DEF ............................................ 166
Diesel exhaust fluid ....................166
Diesel fuel system bleeding .......242
Door open .................................. 110
Doors ............................................ 28
Driver assistance systems ..........181
Driver Information Centre ...........111
Driving characteristics and towing tips .............................. 230
Driving hints ................................ 157E
Electric adjustment ......................36
Electrical system......................... 253
Electric parking brake .........106, 175
Electric parking brake fault .........106
Electronic climate control system 147
Electronic driving programmes ..171
Electronic key system ...................21
Electronic Stability Control.......... 178
Electronic Stability Control and Traction Control system ..........107
Electronic Stability Control off..... 107
End-of-life vehicle recovery .......235
Engine compartment fuse box ...254
Engine coolant ........................... 238
Engine coolant temperature ......108
Engine coolant temperature gauge ..................................... 103
Engine data ............................... 289
Engine exhaust .......................... 164
Engine identification ...................285
Engine oil ................... 237, 282, 286
Engine oil pressure ....................108
Entry lighting .............................. 142
Event data recorders ..................310
Exhaust filter ............................... 164
Exit lighting ................................ 142
Exterior care .............................. 278
Exterior light ............................... 109Exterior lighting ....................12, 133
Exterior mirrors ............................. 36
F
Fault ........................................... 172
First aid kit ................................... 83
Fixed air vents ........................... 154
Folding mirrors ............................. 36
Following distance ......................107
Following distance indication ......198
Forward collision alert................. 195
Front airbag system .....................60
Front fog lights ...........109, 139, 245
Front pedestrian protection ........202
Front seats.................................... 46
Front storage ................................ 73
Fuel............................................. 226
Fuel for diesel engines ..............227
Fuel for petrol engines ...............226
Fuel gauge ................................. 102 Funnel......................................... 228
Fuses ......................................... 253
G Gauges ....................................... 100
Gear selection ........................... 169
Gear shifting ............................... 107
General information ...................230
Glovebox ..................................... 72