Page 235 of 301

Vehicle care233Depending 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 3 271.
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 248 of 301
246Vehicle 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 274 of 301

272Service 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.
Recommendations for petrol engines
are also valid for Compressed Natural
Gas (CNG), Liquified Petroleum Gas
(LPG) and Ethanol (E85) fuelled
engines.
Select the appropriate engine oil based on its quality and on the
minimum ambient temperature
3 276.
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
3 276.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 3 276.
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. Incold 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.
Page 297 of 301

295Child restraint systems ................58
Climate control ............................. 15
Clock............................................. 82
Collision damage repair ..............289
Control indicators.......................... 96
Control of the vehicle .................152
Controls ........................................ 78
Convex shape .............................. 32
Coolant and antifreeze ...............271
Cruise control ....................102, 177
Cupholders .................................. 67
Curtain airbag system .................. 56
Curve lighting.............................. 129
D Danger, Warnings and Cautions ...4
Daytime running lights ...............129
Declaration of conformity ............287
DEF ............................................ 161
Diesel exhaust fluid ....................161
Diesel fuel system bleeding .......235
Diesel particle filter ....................159
Door open .................................. 102
Doors ............................................ 27
Driver assistance systems ..........177
Driver Information Centre ...........103
Driving characteristics and towing tips .............................. 224
Driving hints ................................ 152E
Electric adjustment ......................32
Electrical system......................... 243
Electric parking brake ...........98, 170
Electric parking brake fault ...........98
Electronic climate control system 142
Electronic key system ...................20
Electronic Stability Control.......... 173
Electronic Stability Control and Traction Control system ............99
Electronic Stability Control off....... 99
End-of-life vehicle recovery .......229
Engine compartment fuse box ...244
Engine coolant ........................... 232
Engine coolant temperature ......100
Engine coolant temperature gauge ....................................... 95
Engine data ............................... 279
Engine exhaust .......................... 159
Engine identification ...................275
Engine oil ................... 231, 271, 276
Engine oil pressure ....................100
Entry lighting .............................. 136
Event data recorders ..................292
Exit lighting ................................ 136
Exterior care .............................. 267
Exterior light ............................... 101
Exterior lighting ....................12, 125
Exterior mirrors ............................. 32F
First aid ......................................... 74
First aid kit ................................... 74
Fixed air vents ........................... 149
Fog light ..................................... 101
Fog lights ................................... 238
Folding mirrors ............................. 32
Following distance ........................99
Following distance indication ......191
Forward collision alert................. 188
Front airbag system .....................55
Front fog lights ........................... 133
Front pedestrian protection ........195
Front seats.................................... 41
Front storage ................................ 68
Fuel............................................. 220
Fuel consumption - CO 2-
Emissions ............................... 223
Fuel for diesel engines ..............221
Fuel for petrol engines ...............220
Fuel gauge ................................... 94
Funnel......................................... 221
Fuses ......................................... 243
G
Gauges ......................................... 92
Gear shifting ................................. 99
General information ...................224
Glovebox ..................................... 67