Operation
WARNING
● Alw a
ys drive according to the road weather
conditions, the terrain and traffic. Driving rec-
ommendations should never lead to illegal
manoeuvres in surrounding traffic.
● The diesel engine particulate filter may
reac
h extremely high temperatures; in this
case the vehicle should be parked so that it
does not enter into contact with highly flam-
mable materials underneath the vehicle. Oth-
erwise there is a risk of fire. Engine oil pressure
If this warning lamp
is
r
ed it indicates
that the engine oil pressure is too low.
If this warning symbol starts to flash, and is
accompanied by three audible warnings,
switch off the engine and check the oil level.
If necessary, add more oil ›››
page 206.
If the warning lamp flashes although the oil
level is correct, stop driving. Do not even run
the engine at idle speed! Obtain technical as-
sistance.
Checking the oil level
If the warning lamp is yellow the engine
oil level should be checked as soon as possi-
ble. Top up the oil ›››
page 206 at the next
opportunity. Oil level sensor faulty*
If the
y
ellow warning lamp flashes, take
the vehicle to a specialised workshop to have
the oil level sensor checked. Until then it is
advisable to check the oil level every time
you refuel.
Lamp fault* The warning lamp lights up when there is
a f
au
lt on the turn signals, headlights, side
lights and fog lights.
Windscreen washer fluid* This warning lamp lights up to indicate that
the w
ind
s
creen washer level is very low.
This serves as a reminder to fill up the reser-
voir at the earliest opportunity ›››
page 209.
Rear fog light* The warning lamp lights
up when the r
e
ar
fog light is switched on. For further informa-
tion see ›››
page 123. Anti-lock brake system (ABS)* The control lamp
lights up for a f
ew sec-
onds when the ignition is switched on. It
goes out again after the system has run
through an automatic test sequence.
There is a fault in the ABS if:
● The control lamp does not
light up when
the ignition is switched on.
● The control lamp does not go out again af-
ter a few sec
onds.
● The control lamp lights up when the vehicle
is mo
ving.
The vehicle can still be braked in the normal
way, without the ABS function. Take the vehi-
cle to a specialised workshop as soon as
possible. For further information on the ABS
see the ›››
page 171.
If there is a fault in the ABS, the ESC* and the
tyre pressure control lamp will also light up.
Brake system fault
If the ABS warning lamp lights up together
with the brake warning lamp , there is a
fault in the ABS function and in the brake
system ››› .
102
Instruments and warning/control lamps
WARNING
● Bef or
e opening the bonnet, read and ob-
serve the warnings ››› page 201, Working in
the engine compartment.
● If the brake system warning lamp should
light
up together with the ABS warning lamp
, stop the vehicle immediately and check
the brake fluid level in the reservoir
››› page 208, Brake fluid. If the brake fluid
level has dropped below the “MIN” mark you
must not drive on. Risk of accident. Obtain
technical assistance.
● If the brake fluid level is correct, the fault in
the brake sy
stem may have been caused by a
failure of the ABS system. This could cause
the rear wheels to lock quickly when you
brake. This could cause the rear to break
away. Risk of skidding. Stop the vehicle and
seek technical assistance. Differential lock fault (EDS)*
The EDL operates along with the ABS in vehi-
c
l
e
s equipped with Electronic Stability Con-
trol (ESC)*.
A malfunction in the EDL is indicated by the
ABS control lamp . Take the vehicle to a
specialised workshop as soon as possible.
For further information on the EDL see
››› page 170, Electronic differential lock
(EDS)*. Traction control system (ASR)* / The traction control system prevents the driv-
en wheels
fr
om spinning when the vehicle is
accelerating.
There are two control lamps for the traction
control system: and . Both control lamps
light up together when the ignition is switch-
ed on and should turn off after approximately
2 seconds. This is the time taken for the func-
tion check.
The lamp has the following function:
● It flashes when the ASR is working if the ve-
hicl e i
s moving.
If the system is deactivated or if it has any
fault, the warning lamp will remain lit. The
warning lamp will also light up if a fault
should occur in the ABS because the ASR op-
erates in conjunction with the ABS. For fur-
ther information, see ›››
page 172.
The lamp provides information about the
disconnection status of the system:
● It stays lit when the ASR is disconnected
via E
asy Connect.
By means of Easy Connect, the ASR function
is reactivated and the warning lamp switched
off. Electronic Stability Control (ESC)*
/ There are two control lamps for the electronic
st
ab
ility control. The lamp provides infor-
mation concerning function and disconnec-
tion status.
Both control lamps light up together when
the ignition is switched on and should turn
off after approximately 2 seconds. This is the
time taken for the function check.
This programme includes the ABS, EDL and
ASR. It also includes emergency braking as-
sistance (BAS).
The control lamp has the following func-
tions:
● It flashes whilst driving when the ASR/ESC
is activ
ated.
● It will light up if there is a fault in the ESC.
● As the ESC operates in conjunction with the
ABS, the ESC light
will also come on if a fault
should occur in the ABS.
If the ESC control lamp lights up and stays
on after the engine is started, this may mean
that the control system has temporarily
switched off the ESC. In this case the ESC can
be reactivated by switching the ignition off
and then on again. If the control lamp goes
out, this means the system is fully functional. »
103
Technical data
Advice
Operation
Emergencies
Safety
Operation
The l amp provides information about the
di s
connection status of the system:
● It stays lit when the ASR is disconnected on
pres
sing the switch or if we select ESC
Sport mode, only by means of Easy Connect.
Brake system* Situations in which the warning lamp lights
up
●
the brake fluid level is too low
› ››
page 208.
● there is a fault in the brake system.
This w
arning lamp can light up together with
the ABS system warning lamp. WARNING
● If the br ak
e warning lamp does not go out
or if it lights up when driving, the brake fluid
level in the reservoir is too low so there is a
risk of an accident ››› page 208, Brake fluid.
Stop the vehicle and do not drive on. Obtain
technical assistance.
● If the brake warning lamp lights up to-
gether w
ith the ABS lamp this could be
due to an ABS fault. This could cause the rear
wheels to lock quickly when you brake. This
could cause the rear to break away. Risk of
skidding. Stop the vehicle and seek technical
assistance. Cruise speed (cruise control system)*
The warning lamp
comes
on when the
cruise control system is switched on. For fur-
ther information on the cruise control system
please see ›››
page 34.
Tyre pressure Fig. 124
Centre console: tyre monitoring sys-
t em b
utt
on. The tyre monitoring lamp* compares wheel
r
ev
o
lutions and with it, using the ESC, the
wheel diameter of each wheel. If the diame-
ter of a wheel changes, the tyre control lamp
lights up. The wheel diameter changes
when:
● Tyre pressure is insufficient.
● The tyre structure is damaged. ●
The vehic
le is unbalanced because of a
load.
● The wheels of one axle are under more
pres
sure (for example, driving with a trailer or
on steep slopes).
● The vehicle is fitted with snow chains.
● The temporary spare wheel is fitted.
● The wheel on one axle is changed.
Tyr
e pressure adjustment
On adjusting tyre pressure or changing one
or more wheels, the ››› Fig. 124 button must
be kept pressed down, with the ignition on,
until an acoustic signal is heard.
Store the new tyre pressure in the Easy Con-
nect system with the button and the func-
tion b utt
on Set
up
› ›
›
page 24.
If the wheels are under excessive load (for ex-
ample, driving with a trailer or heavy load),
the tyre pressure must be increased to the
recommended value for a full load (see the
sticker on the inside of the fuel flap). If the
tyre monitor system button is pressed down,
the new tyre pressures are confirmed.
The tyre pressure control lamp lights up
If the tyre pressure of a wheel is much lower
than the value set by the driver, then the tyre
pressure control lamp ››› will light up.
104
Instruments and warning/control lamps
WARNING
● When the tyr e pr
essure control lamp lights
up, reduce speed immediately and avoid any
sudden turning or braking manoeuvre. Stop
when possible, and check the tyre pressure
and status.
● The driver is responsible for maintaining
correct
tyre pressures. For this reason, tyre
pressure must be regularly checked.
● Under certain circumstances (e.g. when
driving in a s
porty manner, in winter condi-
tions or on a dirt track) the tyre control lamp
may light up belatedly or may function incor-
rectly. Note
If the battery is disconnected, the yellow
warnin g l
amp lights up after turning the
ignition on. This should turn off after a brief
journey. Speed selector lever lock*
The brake pedal must be depressed when
thi
s
w
arning lamp lights up. This is necessary
when the automatic gearbox* selector lever
is moved out of the positions P or N.Fuel Reserve/Level
It lights up when only 7 litres of fuel remain
in the tank, and an
ac
oustic signal* also
sounds. It reminds you to fuel up the fuel
tank as soon as possible ››› page 199.
Main beam headlights The control lamp
lights up when the m ain
be
ams are on or when the headlight flasher
is operated.
For further information see ›››
page 125.
Electromechanical steering* The control lamp should light up for a few
sec
ond
s
when the ignition is switched on. It
should go out once the engine is started.
For further information on steering see
››› page 152.
It lights up red
The electromechani-
cal steering is dam-
aged.Have the steering checked im-
mediately by a specialised work-
shop.
It lights up yellow
Electromechanical
steering operation
is limited.Have the steering checked im-
mediately by a specialised work-
shop.
If the yellow warning lamp does
not light up again after the en-
gine is restarted and the vehicle
has travelled a short distance,
you do not need to take it to a
specialised workshop.
The 12-volt battery
was disconnected
and has been recon-
nected.Take the vehicle for a short run
at 15-20 km/h (9-12 mph).
It flashes yellow
The steering column
is tight.Turn the wheel a little to both
sides.
The steering column
does not unlock or
lock.Remove the key from the ignition
and switch the ignition back on.
If necessary, check the messag-
es displayed on the instrument
panel display.
Do not drive on if
the steering
column remains locked after the
ignition has been switched on.
Seek specialist assistance. WARNING
If the warning lamps and the corresponding
mes s
ages are ignored when they light up, the
vehicle may stall in traffic and cause acci-
dents and severe injuries. » 105
Technical data
Advice
Operation
Emergencies
Safety
Lights and visibility
Note
● To activ at
e the Coming/Leaving home func-
tion, the rotary light switch must be in posi-
tion and the light sensor must detect
darkness.
● If the ignition key is removed while the
lights ar
e on, the lights flash briefly and the
driver door opens, no audible warning is
heard, since with the Coming Home function
on, the lights are automatically switched off
after a period of time (except when the light
switch is in position or . Adaptive headlights* (for driving
r
ou
nd bend
s)Fig. 135
Cornering lighting using adaptive
he adlights. When driving around bends, the headlights
w
i
l
l light the most important areas of the
road. This cornering light gives better illumination
of the side of
the road and the corner area.
The dynamic lighting is controlled automati-
cally according to speed and the steering
wheel angle.
The two main headlights move at different
angles to avoid that the front of the vehicle is
left completely in the dark. Note
The system operates from a speed of about
10 km/h (6 mph). Fog lights with cornering function*
This is an additional light source to dipped
be
am he
a
dlights to light up the road as a
bend is taken.
The cornering light operates with the lights
switched on and when driving at less than
40 Km/h (25 mph). Ignition occurs by turning
the steering or connecting the turn signal.
Forward gear
● If the steering wheel is turned to the right,
or the right-hand t
urn signal operated, the
right-hand fog light turns on.
● If the steering wheel is turned to the left, or
the left
-hand turn signal operated, the left-
hand fog light turns on. In reverse, both fog lights turn on. Note
When the fog lamps are on, the cornering
fu nction i
s activated and both headlights are
continuously on. Hazard warning lights
Read the additional information carefully
›› ›
page 22
The hazard warning lights are used to draw
the attention of other road users to your vehi-
cle in emergencies.
If your vehicle breaks down:
1. Park your vehicle at a safe distance from mov in
g traffic.
2. Press the button to switch on the hazard warning lights
››› .
3. Switch the ignition off.
4. Apply the handbrake.
5. For a manual gearbox, engage 1st gear; for an aut
om
atic gearbox, move the gear
lever to P.
6. Use the warning triangle to draw the atten- tion of other ro
ad users to your vehicle.
7. Always take the vehicle key with you when you le
ave the vehicle. »
127
Technical data
Advice
Operation
Emergencies
Safety
Operation
start it using the battery of another vehicle.
Ple
a
se observe and follow the notes on the
››› page 52, How to jump start. For the sake of the environment
Do not warm-up the engine by running the
en gine w ith the
vehicle stationary. You
should drive off as soon as you start the en-
gine. This helps the engine reach operating
temperature faster and reduces emissions. Switching off the engine
–
Stop the vehicle.
– Turn the ignition key to position ››
›
Fig. 168
1 .
Af t
er sw
itching the engine off, the radiator
fan may run on for up to 10 minutes. It is also
possible that the fan turns itself on once
more if the coolant temperature increases
due to the heat accumulated in the engine
compartment or due to its prolonged expo-
sure to solar radiation. WARNING
● Never sw it
ch the engine off until the vehi-
cle is completely stationary.
● The brake servo works only when the en-
gine is ru
nning. With the engine switched off,
more strength is needed to brake. As normal brake operation cannot be performed, risk of
acc
ident
s and serious injury may exist.
● The steering lock can be immediately
block
ed once the key is removed from the ig-
nition. The vehicle cannot be steered. Risk of
accident.
● Power-assisted steering does not work
when the engine is
off, and more strength is
needed to turn the wheel.
● If the key is removed from the ignition lock
the steerin
g lock could be engaged and vehi-
cle steering would not work. CAUTION
When the engine has been running under a
heavy lo
ad for a long period, heat can accu-
mulate in the engine compartment and cause
engine damage. For this reason, idle the en-
gine for approximately 2 minutes before
switching it off. Braking and parking
Br ak
in
g capacity and braking distance The efficiency of the brakes depends directly
on the br
ak
e p
ad wear. This wear depends to
a great extent on the conditions under which
the vehicle is operated and the way the vehi-
cle is driven. If you often drive in town, drive
short distances or have a sporty driving style,
we recommend that you have the thickness of your brake pads checked by technical serv-
ices
more frequently than recommended in
the Maintenance Programme.
If you drive with wet brakes, for example, af-
ter crossing areas of water, on days of heavy
rainfall or even after washing the car, the ef-
fect of the brakes is reduced as the brake
discs are wet or even frozen (in winter): in
this case, the brakes should be “dried” by
pressing the brake pedal several times. WARNING
Longer braking distances and faults in the
brak e sy
stem increase the risk of accidents.
● New brake pads must be run in and do not
have the c
orrect friction during the first
200 km. This reduced braking capacity may
be compensated for by pressing on the brake
pedal a little harder, which also applies when
the brake pads have to be changed further
on.
● If brakes are wet or frozen, or if you are
driving on r
oads which have been salted,
braking power may be lower than normal.
● On steep slopes, if brakes are excessively
used, they w
ill overheat. Before driving down
a long steep slope, it is advisable to reduce
speed and change down into a lower gear or
range (depending on the type of transmis-
sion). Thus, make use of engine braking and
relieve the brakes.
● Never let the brakes “drag” by applying
light pre
ssure. Continuous braking will cause156
Driving
the brakes to overheat and the braking
dis
t
ance will increase. Apply and then release
the brakes alternately.
● Never let the vehicle run with the engine
switc
hed off. The braking distance is in-
creased considerably when the brake servo is
not active.
● If the brake fluid loses its viscosity and is
subj
ected to heavy use, vapour bubbles can
form in the brake system. This reduces the ef-
ficiency of the brakes.
● Non-standard or damaged front spoilers
coul
d restrict the airflow to the brakes and
cause them to overheat. Before purchasing
accessories please observe the relevant in-
structions ››› page 190, Modifications.
● If a brake system circuit fails, the braking
dist
ance will be increased considerably. Con-
tact a specialised workshop immediately and
avoid unnecessary journeys. Handbrake
Fig. 169
Handbrake between the front seats. The handbrake should be applied firmly to
pr
ev
ent
the vehicle from accidentally rolling
away. Always apply the handbrake when you
leave your vehicle and when you park.
Applying the handbrake
– Pull the handbrake lever up firmly
›››
Fig. 169.
Releasing the handbrake
– Pull the lever up slightly and press the re-
lea
se knob in the direction of the arrow
››› Fig. 169 and guide the handbrake lever
down fully ››› .
A lw
a
ys pull the handbrake all the way up, so
there is less risk of driving off with it still en-
gaged ››› .The handbrake warning lamp lights
up
when the h andbr
ake is applied and the igni-
tion switched on. The warning lamp turns off
when the handbrake is released. WARNING
● Never u se the h
andbrake to stop the vehi-
cle when it is in motion. The braking distance
is considerably longer, because braking is
only applied to the rear wheels. Risk of acci-
dent!
● If the handbrake is only partially released,
this w
ill cause the rear brakes to overheat,
which can impair the function of the brake
system and could lead to an accident. This al-
so causes premature wear on the rear brake
pads. CAUTION
Always apply the handbrake before you leave
the v ehic
le. Put it in 1st gear as well. In vehi-
cles with an automatic gearbox, place the
gear lever in position P. Parking
The handbrake should always be firmly ap-
p
lied when the
v
ehicle is parked.
Always note the following points when park-
ing the vehicle: – Use the brake pedal to stop the vehicle. »
157
Technical data
Advice
Operation
Emergencies
Safety
Operation
– Ap p
ly
the handbrake.
– Put it in 1st gear.
– Switch the engine off and remove the key
from the ignition. T
urn the steering wheel
slightly to engage the steering lock.
– Always take you keys with you when you
leav
e the vehicle ››› .
Ad dition
a
l notes on parking the vehicle on
gradients:
Turn the steering wheel so that the vehicle
rolls against the kerb if it started to roll.
● If the vehicle is parked facing downhil
l,
turn the front wheels so that they point to-
wards the kerb .
● If the vehicle is parked facing uphill
, turn
the front wheels so that they point away from
the kerb.
● Secure the vehicle as usual by applying the
handbrak
e firmly and putting it in 1st gear. WARNING
● Tak e me
asures to reduce the risk of injury
when you leave your vehicle unattended.
● Never park where the hot exhaust system
coul
d ignite inflammable materials, such as
dry grass, low bushes, spilt fuel etc.
● Never allow vehicle occupants to remain in
the vehic
le when it is locked. They would be
unable to open the vehicle from the inside,
and could become trapped in the vehicle in an emergency. In the event of an emergency,
lock
ed door
s will delay assistance to vehicle
occupants.
● Never leave children alone in the vehicle.
They cou
ld set the vehicle in motion, for ex-
ample, by releasing the handbrake or the
gearbox lever.
● Depending on weather conditions, it may
become extr
emely hot or cold inside the vehi-
cle. This can be fatal. Hill driving assistant*
This function is only included in vehicles with
E
SC.
The hi l
l driving assistant helps the driver to
move off and upward on a hill when the vehi-
cle is stationary.
The system maintains brake pressure for ap-
proximately two seconds after the driver
takes his foot off the brake pedal to prevent
the vehicle from lurching backward when it is
started. During these 2 seconds, the driver
has enough time to release the clutch pedal
and accelerate without the vehicle moving
and without having to use the handbrake,
making start-up easier, more comfortable
and safer.
These are the basic operation conditions:
● being on a ramp or hill/slope, ●
doors c
losed,
● vehicle completely stationary,
● engine running and foot on the brake,
● besides having a gear engaged or being in
neutral f
or manual gear change and with the
selector lever at position S, D or R for an au-
tomatic gearbox.
This system is also active when reversing up-
hill. WARNING
● If y
ou do not start the vehicle immediately
after taking your foot off the brake pedal, the
vehicle may start to roll back under certain
conditions. Depress the brake pedal or use
the hand brake immediately.
● If the engine stalls, depress the brake ped-
al or u
se the hand brake immediately.
● When following a line of traffic uphill, if you
want t
o prevent the vehicle from rolling back
accidentally when starting off, hold the brake
pedal down for a few seconds before starting
off. Note
The Official Service or a specialist workshop
can t el
l you if your vehicle is equipped with
this system. 158