
Checking and refilling levels
Working incorrectly can cause serious
injuries.
● Nev er open the bonnet
if you see steam or
cool
ant escaping from the engine compart-
ment. This may cause serious burns. Always
wait until you cannot see or hear the sound of
steam or coolant coming from the engine
compartment.
● Always allow the engine to cool down be-
fore openin
g the bonnet.
● Contact with hot elements of the engine
and the exhau
st system can cause burns.
● Once the engine has cooled, follow the in-
structions
below before opening the bonnet:
– Turn on the electronic parking brake and
place the gear selector lever in P or the
gearbox lever in neutral.
– Remove the key from the ignition.
– Keep children away from the engine com-
partment and never leave them unsuper-
vised.
● When the engine is warm or hot, the cool-
ing sys
tem is pressurised. Do not unscrew
the cap on the expansion tank when the en-
gine is hot. Otherwise, coolant may spray out
under pressure causing burns and serious in-
jury.
– Carefully and slowly unscrew the cap an-
ticlockwise, gently pressing down on it.
– Always protect your face, hands and arms
from hot coolant and steam using a large,
thick cloth. ●
When refi l
ling liquids, avoid spilling them
on parts of the engine and the exhaust sys-
tem. Spilled liquids could cause a fire. WARNING
The high voltages of the electrical system can
giv e el ectric
shocks as well as causing burns
and serious injury and possibly even death!
● Never cause short circuits in the electrical
syst
em. The battery could explode.
● To minimise the risk of electric shock and
serious c
onsequences while the engine is
running or starting the engine, note the fol-
lowing:
– Never touch the electrical wiring of the
ignition system.
– Never touch electric cables or the gas dis-
charge lamps. WARNING
In the engine compartment, there are rotat-
ing p ar
ts that could cause serious injury.
● Never place your hands on or near the radi-
ator fan.
Touching the rotor blades could seri-
ously harm you. The ventilator works accord-
ing to the engine temperature and could start
suddenly even when the ignition is turned off
and the key is removed.
● If any work has to be performed when the
engine is
started or with the engine running,
there is an additional, potentially fatal, safety
risk from rotating parts, such as the drive belts, alternator, radiator fan, etc., as well as
from the high-
v
oltage ignition system. Al-
ways work with the utmost caution.
– Always make sure that no parts of your
body, jewellery, ties, loose clothing and
long hair can be trapped by the rotating
parts of the engine. Before any work, re-
move ties and jewellery (necklaces, etc),
tie long hair back and tie all items of
loose clothing to your body to make sure
that they cannot be trapped by engine
components.
– Take extreme caution when operating the
accelerator and remain attentive. The ve-
hicle could move, even with the electron-
ic parking brake activated.
● Always make sure you have not left any ob-
jects, s
uch as cleaning cloths and tools, in
the engine compartment. If any object is left
in the engine compartment, this could cause
malfunctions, engine faults and even a fire. WARNING
Refill liquids and certain materials can catch
fire e a
sily in the engine compartment, caus-
ing a fire and serious injury!
● Never smoke.
● Never work close to places exposed to
flames
or sparks.
● Never pour service fluids over the engine.
These fluid ma
y ignite hot engine parts and
cause injuries. » 269
Technical data
Advice
Operation
Emergencies
Safety

Advice
●
If it i
s necessary to work on the fuel system
or the electrical system, please follow the in-
structions below:
–Always disconnect the vehicle battery.
When disconnecting the battery, ensure
that the vehicle is unlocked otherwise
the anti-theft alarm will be triggered.
– Never work close to heaters, heat sources
or places exposed to flames or sparks.
● Always keep a recently serviced and per-
fectly w
orking fire extinguisher close by.
● Never cover the engine with additional in-
sul
ating materials such as a blanket. Risk of
fire! CAUTION
When refilling or changing service liquids,
ens ur
e that you put the liquids into the right
tank. Making a mistake when refilling could
cause serious malfunctions and damage the
engine! For the sake of the environment
Service fluids leaks are harmful to the envi-
ronment . F
or this reason you should make
regular checks on the ground underneath
your vehicle. Take the vehicle to a specialised
workshop to be checked if you see stains, oil
or other fluids on the ground. Collect any
spilt service fluids and allow a professional to
dispose of them. Opening and closing the bonnet
Fig. 238
In the footwell on the driver side:
L ev
er f
or unlocking the bonnet Fig. 239
Release lever to open the bonnet in
the r a
di
ator grille Opening the bonnet
The l
ev
er t
o open the bonnet can only be
used if the driver door is open. ●
Befor
e opening the bonnet, make sure that
the windscreen wiper arms are in place
against the windscreen ››› .
● Open the driver door.
● Pull the release lever ››
›
Fig. 238 in the di-
rection of the arrow. The bonnet is released
from the lock carrier by a spring mechanism
››› .
● Lift the bonnet using the release lever
› ›
›
Fig. 239 (arrow) and open the bonnet fully.
The bonnet is held open thanks to the gas
strut.
Closing the bonnet
● To close the bonnet, pull it down to over-
come the ga
s strut pressure ››› .
● Allow the bonnet to fall into the lock carrier.
Do not pr
e
ss down.
If the bonnet is not correctly closed, open it
once again and close it correctly.
The bonnet is correctly closed when it is flush
with the corresponding parts on the body-
work. WARNING
If the bonnet is not correctly closed, it could
sud den
ly open while driving leaving the driv-
er without visibility. This could result in a se-
rious accident. 270

Index
Environment en v
ir
onmental compatibility . . . . . . . . . . . . . . 197
Environmental ecological driving . . . . . . . . . . . . . . . . . . . . . . . 198
Environmental tip refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
ESC electronic stability control . . . . . . . . . . . . . . . . 203
Ethanol (fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Event Data Recorder . . . . . . . . . . . . . . . . . . . . . . . 247
Exhaust gas purification system . . . . . . . . . . . . . 200
Exterior mirrors adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
vehicle care . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Exterior rear view mirrors control of the function . . . . . . . . . . . . . . . . . . . 140
electric exterior mirrors . . . . . . . . . . . . . . . . . . 140
exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
folding the rear view mirrors . . . . . . . . . . . . . . 140
Exterior view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5, 6
Extinguisher driving with a trailer . . . . . . . . . . . . . . . . . . . . . 236
F Fabrics: cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 256
Fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Fault dynamic chassis control (DCC) . . . . . . . . . . . . 231
panoramic sunroof . . . . . . . . . . . . . . . . . . . . . . 127
park assist system . . . . . . . . . . . . . . . . . . . . . . 212
parking distance warning system . . . . . . . . . . 210
rear assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Fault memory connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248 Filling capacities
AdBlue tank . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Filling the tank . . . . . . . . . . . . . . . . . . . . . . 261, 263
Fire extinguisher . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
First-aid kit storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Fitting tow hitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Fluid Level control . . . . . . . . . . . . . . . . . . . . . . . . . 39
Fog light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Folding down rear seats load space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Folding table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Folding the backrest of the front passenger seat 148
Folding wheel chocks . . . . . . . . . . . . . . . . . . . . . . . 83
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Front passenger front airbag control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
disconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Front seat manual adjustment . . . . . . . . . . . . . . . . . . . . . . 13
Front wiper blades change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39, 264 diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
savings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Fuel consumption why does fuel consumption increase? . . . . . . 201
Fuel gauge control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Fuel tank cap opening and closing . . . . . . . . . . . . . . . . . . . . . 39 Fuel tank flap
opening and clo sing . . . . . . . . . . . . . . . . . . . . . 39
Function control tow hitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42, 90 fuse box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
identification using colours . . . . . . . . . . . . . . . . 42
identifying blown fuses . . . . . . . . . . . . . . . . . . . 43
preparation before replacing . . . . . . . . . . . . . . . 43
replacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
G
Gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192 emergency release . . . . . . . . . . . . . . . . . . . . . . . 35
Gearbox lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Gear change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 automatic gearbox . . . . . . . . . . . . . . . . . . 34, 193
changing gears manually . . . . . . . . . . . . . . . . . 193
gear recommendation . . . . . . . . . . . . . . . . . . . 196
manual gear change . . . . . . . . . . . . . . . . . . . . . . 34
putting the vehicle in gear (automatic gear-box) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
putting the vehicle in gear (manual gearbox) 193
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Gear engaged . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
General instrument panel instrument panel . . . . . . . . . . . . . . . . . . . . . . . . 99
General overview of the engine compartment . . 271
Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Glove compartment . . . . . . . . . . . . . . . . . . . . . . . 166
Glove compartment lighting . . . . . . . . . . . . . . . . 134
H
Hand brake see Parking brake . . . . . . . . . . . . . . . . . . . . . . . 189
Hazard warning lights . . . . . . . . . . . . . . . . . 25, 132
Head-on collisions and the laws of physics . . . . . 63
308