Page 245 of 321

Vehicle care243Depending 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 3 284.
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 261 of 321
Vehicle care259No.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.
Instrument panel fuse box
In left-hand drive vehicles, the fuse
box is behind a cover in the
instrument panel.
Disengage cover at the side and
remove.
Page 287 of 321

Service and maintenance285Dexos 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
3 289.
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
3 289.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 3 289.
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 317 of 321

315Child restraints.............................. 62
Child restraint systems ................62
Climate control ............................. 15
Clock............................................. 91
Collision damage repair ..............309
Control indicators........................ 105
Control of the vehicle .................161
Controls ........................................ 87
Convex shape .............................. 35
Coolant and antifreeze ...............284
Cruise control ....................111, 186
Cupholders .................................. 71
Curtain airbag system .................. 60
Curve lighting.............................. 138
D Danger, Warnings and Cautions ...4
Daytime running lights ...............138
Declaration of conformity ............307
DEF ............................................ 170
Diesel exhaust fluid ....................170
Diesel fuel system bleeding .......245
Diesel particle filter ....................168
Door open .................................. 111
Doors ............................................ 26
Driver assistance systems ..........186
Driver Information Centre ...........112
Driving characteristics and towing tips .............................. 234
Driving hints ................................ 161E
Electric adjustment ......................35
Electrical system......................... 256
Electric parking brake .........107, 179
Electric parking brake fault .........107
Electronic climate control system 151
Electronic key system ...................19
Electronic Stability Control.......... 182
Electronic Stability Control and Traction Control system ..........108
Electronic Stability Control off..... 108
End-of-life vehicle recovery .......239
Engine compartment fuse box ...257
Engine coolant ........................... 242
Engine coolant temperature ......109
Engine coolant temperature gauge ..................................... 104
Engine data ............................... 292
Engine exhaust .......................... 168
Engine identification ...................288
Engine oil ................... 241, 284, 289
Engine oil pressure ....................109
Entry lighting .............................. 145
Event data recorders ..................312
Exit lighting ................................ 145
Exterior care .............................. 279
Exterior light ............................... 110
Exterior lighting ....................12, 134
Exterior mirrors ............................. 35F
First aid kit ................................... 82
Fixed air vents ........................... 158
Fog light ..................................... 110
Fog lights ................................... 249
Folding mirrors ............................. 35
Following distance ......................108
Following distance indication ......200
Forward collision alert................. 197
Front airbag system .....................59
Front fog lights ........................... 142
Front pedestrian protection ........204
Front seats.................................... 45
Front storage ................................ 72
Fuel............................................. 229
Fuel consumption - CO 2-
Emissions ............................... 233
Fuel for diesel engines ..............230
Fuel for petrol engines ...............229
Fuel gauge ................................. 103
Funnel......................................... 231
Fuses ......................................... 256
G Gauges ....................................... 101
Gear shifting ............................... 108
General information ...................234
Glovebox ..................................... 71