Page 259 of 345

Vehicle care257
Depending 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 3 300.
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 275 of 345
Vehicle care273No.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 303 of 345

Service and maintenance301Use of engine oils for all petrol
engines with only ACEA quality is
prohibited, since it can cause engine
damage under certain operating
conditions.
Select the appropriate engine oil based on its quality and on the
minimum ambient temperature
3 304.
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 3 304.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 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.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 3 185.
Page 339 of 345

337Central locking system ................25
Centre console lighting ..............141
Centre console storage ...............74
Changing tyre and wheel size ...281
Charging system ........................ 107
Child locks ................................... 28
Child restraint installation locations ................................... 67
Child restraints.............................. 64
Child restraint systems ................64
Climate control ............................. 16
Clock............................................. 92
Collision damage repair ..............328
Connected navigation .................156
Connecting a phone ...................161
Control elements ........................144
Control indicators........................ 105
Control of the vehicle .................176
Controls ........................................ 88
Convex shape .............................. 37
Coolant and antifreeze ...............300
Cruise control ....................111, 201
Cupholders .................................. 73
Curtain airbag system .................. 62
Curve lighting.............................. 134
D
DAB announcements .................152
DAB-DAB linking ........................152
DAB-FM linking........................... 152Danger, Warnings and Cautions ...4
Daytime running lights ...............134
Declaration of conformity ............324
DEF ............................................ 185
Diesel exhaust fluid ....................185
Diesel fuel system bleeding .......259
Display operation ........................148
Door open .................................. 111
Doors ............................................ 29
Driver assistance systems ..........201
Driver Information Centre ...........112
Driving characteristics and towing tips .............................. 249
Driving hints ................................ 176
E
Electric adjustment ......................37
Electrical system......................... 270
Electric parking brake .........107, 194
Electric parking brake fault .........107
Electronic climate control system 166
Electronic key system ...................22
Electronic Stability Control.......... 197
Electronic Stability Control and Traction Control system ..........108
Electronic Stability Control off..... 108
End-of-life vehicle recovery .......253
Engine compartment fuse box ...271
Engine coolant ........................... 256
Engine coolant temperature ......109Engine coolant temperature
gauge ..................................... 104
Engine data ............................... 307
Engine exhaust .......................... 183
Engine identification ...................303
Engine oil ................... 255, 300, 304
Engine oil pressure ....................109
Entry lighting .............................. 141
Event data recorders ..................331
Exhaust filter ............................... 183
Exit lighting ................................ 141
Extended status view .................144
Exterior care .............................. 295
Exterior light ............................... 110
Exterior lighting ....................13, 131
Exterior mirrors ............................. 37
F
First aid kit ................................... 84
Fixed air vents ........................... 173
Folding mirrors ............................. 38
Following distance ......................108
Following distance indication ......217
Forward collision alert................. 214
Front airbag system .....................61
Front fog lights ...........110, 138, 262
Front pedestrian protection ........221
Front seats.................................... 47
Front storage ................................ 74
Fuel............................................. 244