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Driving and operating143Refilling AdBlueCaution
Only use AdBlue that complies
with European standards
DIN 70 070 and ISO 22241-1.
Do not use additives.
Do not dilute AdBlue.
Otherwise the selective catalytic
reduction system could be
damaged.
Notice
If AdBlue must be refilled at very low temperatures, the refilling of AdBlue
may not be detected by the system.
In this case, park the vehicle in a
space with a higher ambient
temperature until AdBlue is
liquefied.
Notice
If engine starting is prohibited due to low AdBlue level, we recommend
refilling the tank completely or with a volume of at least 10 l of AdBlue
(depending on AdBlue
consumption).
Avoid minor top-ups (e.g. less than
10 l), otherwise the system may not
detect a refill.
Notice
When unscrewing the protective cap from the filler neck, ammonia fumesmay emerge. Do not inhale as the
fumes have a pungent smell. The fumes are not harmful by inhalation.
The vehicle must be parked on a level surface.The filler neck for AdBlue is located
behind the fuel filler flap, located on
the left-hand side of the vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked and the left- hand door is opened.9 Danger
Vehicles with stop-start system:
The engine must be switched off
and the ignition key removed, to
avoid risk of engine being
restarted automatically by the
system.
Capacities 3 211.
Filling station
9 Danger
Follow the operating and safety
instructions of the filling station
when refilling AdBlue.
1. Switch off engine and remove key
from ignition switch.
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144Driving and operating2. Open left-hand door and pull fuelfiller flap to open.
3. Unscrew protective cap anticlockwise from the filler neck.
Caution
The AdBlue protective cap is the
blue lower cap (arrowed in
illustration), and the fuel filler cap
is the black upper cap 3 160.
In case of incorrect refilling, do not switch on ignition. Seek the
assistance of a workshop
immediately.
4. Fully insert the pump nozzle into the filler neck and switch it on.
5. When refilling is complete, mount the protective cap and turn
clockwise until it engages.
6. Close fuel filler flap and left-hand door.
AdBlue canister Notice
Only use the designated AdBlue
canisters for refilling, to prevent a
topping-up of too much AdBlue.
Additionally, the fumes in the tank
are captured in the canister and do
not emerge.
Notice
Since AdBlue has a limited
durability, check the date of expiry
before refilling.
1. Switch off engine and remove key
from ignition switch.
2. Open left-hand door and pull fuel filler flap to open.
3. Unscrew protective capanticlockwise from the filler neck.
Caution
The AdBlue protective cap is the
blue lower cap (arrowed in
illustration), and the fuel filler cap
is the black upper cap 3 160.
In case of incorrect refilling, do not switch on ignition. Seek the
assistance of a workshop
immediately.
4. Open AdBlue canister.
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Driving and operating1455.Mount one end of the hose on the
canister and screw the other end
on the filler neck.
6. Lift the canister until it is empty, or
until the flow from the canister has stopped. This can take up to
5 minutes.
7. Place the canister on the ground to empty the hose, wait
15 seconds.
8. Unscrew the hose from the filler neck.
9. Mount the protective cap and turn
clockwise until it engages.
10. Close fuel filler flap and left-hand door.
Notice
Dispose of AdBlue canister
according to environmental
requirements. Hose can be reused
after flushing with clear water before AdBlue dries out.
Notice
Allow the vehicle to idle for at least
ten seconds to allow the system to
detect the AdBlue refill.Failure to observe this procedure will
result in the system only recognising the AdBlue refill after approx.
20 minutes of driving.
If the AdBlue refill is detected
successfully, AdBlue level warnings
will disappear.
If the AdBlue refill is not detected
some time after running the engine,
seek the assistance of a workshop.
Filler cap
Only use genuine filler caps. AdBlue
tank has a special filler cap.
Fault
If the system detects an operating fault, control indicator Y illuminates
together with j and a warning
chime. Seek the assistance of a
workshop immediately.
A corresponding message appears in
the Driver Information Centre 3 101.Manual transmission
To engage reverse, with the vehicle
stationary depress the clutch pedal, pull up the collar on the selector lever
and engage the gear against the
resistance.
If the gear does not engage, set the
lever in neutral, release the clutch
pedal and depress again. Then
repeat gear selection.
Do not slip the clutch unnecessarily.
When operating, depress the clutch
pedal completely. Do not use the
pedal as a foot rest.
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146Driving and operatingCaution
It is inadvisable to drive with hand
resting on the selector lever.
Gear shifting 3 98.
Stop-start system 3 135.
Brakes
The brake system comprises two independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when you depress the
brake pedal firmly. You need to use
considerably more force for this. The
braking distance is extended. Seek
the assistance of a workshop before
continuing your journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
If control indicator R illuminates in
the instrument cluster while driving
and a corresponding message
appears in the Driver Information
Centre 3 101, there is a fault in the
braking system. Seek the assistance
of a workshop immediately.Control indicator R 3 97.
Vehicle messages 3 102.
Antilock brake system Antilock brake system (ABS)
prevents the wheels from locking.
ABS starts to regulate brake pressure
as soon as a wheel shows a tendency to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that
the pedal is pulsating. Do not reduce
the pressure on the pedal.
After starting-off, the system performs a self-test which may be audible.
Control indicator u 3 98.
Fault
If control indicator u does not go out
a few seconds after the ignition is switched on, or if it illuminates while
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Driving and operating147driving, there is a fault in the ABS.
Control indicator j 3 97 may also
illuminate in the instrument cluster together with a corresponding
message in the Driver Information
Centre. The brake system remains
operational but without ABS
regulation.9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
hard braking, the vehicle can no longer be steered and may
swerve.
If control indicators u, j , R 3 97
and C 3 97 illuminate, there is a fault
in the braking system. A
corresponding message also
appears in the Driver Information
Centre 3 101. Have the cause of the
fault remedied by a workshop.
Vehicle messages 3 102.
Parking brake9 Warning
Always apply parking brake firmly
without operating the release
button, and apply as firmly as
possible on a downhill or uphill
slope.
To release the parking brake, pull
the lever up slightly, press the
release button and fully lower the
lever.
To reduce the operating forces of
the parking brake, depress the
brake pedal at the same time.
Control indicator R 3 97.
Parking 3 138.
Brake assist If the brake pedal is depressed
quickly and forcefully, maximum
brake force is automatically applied
(full braking).
Maintain steady pressure on the
brake pedal for as long as full braking is required. Maximum brake force is
automatically reduced when the
brake pedal is released.
Brake assist is not available during an
Autostop.
Stop-start system 3 135.
Hill start assist
The system helps prevent unintended movement when driving away on
inclines.
When releasing the brake pedal after
stopping on an incline (with the
selector lever in a forward gear or
reverse gear), the brakes remain on
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148Driving and operatingfor a further 2 seconds. The brakes
release automatically as soon as the
vehicle begins to accelerate.Caution
The Hill start assist cannot
completely prevent vehicle
movement in all situations
(extremely steep gradients, etc.).
If necessary, depress the brake
pedal to prevent the vehicle from
rolling forwards or backwards.
The Hill start assist is not active
during an Autostop.
Stop-start system 3 135.
Ride control systems
Traction Control system The Traction Control system (TC) is a component part of the Electronic
Stability Control (ESC) which
improves driving stability when
necessary, regardless of the type of
road surface or tyre grip, by
preventing the drive wheels from
spinning.
As soon as the drive wheels starts to spin, engine output is reduced and
the wheel spinning the most is braked
individually. This considerably
improves the driving stability of the
vehicle on slippery road surfaces.
The Traction Control system is
operational as soon as the ignition is
switched on and control indicator b
extinguishes in the instrument cluster.
A corresponding message also
appears in the Driver Information
Centre 3 101.
When the Traction Control system is active b flashes.9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 98.
Trailer stability assist 3 163.
Enhanced traction function
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Driving and operating149If necessary, in the event of soft
ground, mud or snow-covered road
surfaces, the Traction Control system
can be deactivated to enhance
traction:
Press Ø on the instrument panel.
Control indicator Ø illuminates in the
instrument cluster and a
corresponding message appears in
the Driver Information Centre 3 101.
When vehicle speed reaches 30 mph, the system switches
automatically from enhanced traction
function to Traction Control operation. Control indicator Ø extinguishes in
the instrument cluster.
Traction Control is reactivated by
pressing Ø again. Control indicator
Ø extinguishes.
Traction Control is also reactivated
the next time the ignition is switched
on.
Fault
If the system detects a fault, control
indicator b 3 98 illuminates together
with j 3 97 in the instrument cluster
and a corresponding message
appears in the Driver Information
Centre 3 101.
Traction Control system is not
operational. Have the cause of the
fault remedied by a workshop.
Vehicle messages 3 102.
Electronic Stability Control
The Electronic Stability Control (ESC) improves driving stability when
necessary, regardless of the type of
road surface or tyre grip. It also
prevents the drive wheels from
spinning.As soon as the vehicle starts to
swerve (understeer / oversteer),
engine output is reduced and the
wheels are braked individually. This
considerably improves the driving
stability of the vehicle on slippery road
surfaces.
ESC is operational as soon as the
ignition is switched on and control
indicator b extinguishes in the
instrument cluster. A corresponding
message also appears in the Driver
Information Centre 3 101.
When ESC comes into action b
flashes.9 Warning
Do not let this special safety
feature tempt you into taking risks
when driving.
Adapt speed to the road
conditions.
Control indicator b 3 98.
Trailer stability assist 3 163.
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150Driving and operatingEnhanced traction function
If necessary, in the event of soft
ground, mud or snow-covered road
surfaces, ESC can be deactivated to
enhance traction:
Press Ø on the instrument panel.
Control indicator Ø illuminates in the
instrument cluster and a
corresponding message appears in
the Driver Information Centre 3 101.
When vehicle speed reaches 30 mph, the system switches
automatically from enhanced traction
function to ESC operation. Control
indicator Ø extinguishes in the
instrument cluster.
ESC is reactivated by pressing Ø
again. Control indicator Ø
extinguishes.
ESC is also reactivated the next time
the ignition is switched on.
Engine drag torque control
The engine drag torque control
system is an integral feature of ESC. When downshifting under slippery
road conditions, the engine speed
and torque increase to help prevent
locking of the drive wheels during
sudden deceleration.
Fault
If the system detects a fault, control indicator b 3 98 illuminates together
with j 3 97 in the instrument cluster
and a corresponding message
appears in the Driver Information
Centre 3 101.
The ESC is not operational. Have the cause of the fault remedied by a
workshop.
Vehicle messages 3 102.