
148Driving and operatingEngine restarts prevented
Subsequent requests to refill AdBlue
and finally the announcement that an engine restart will be prevented are
displayed in the Driver Information
Centre.
Note
These restrictions are a legal
requirement.
Before the prevention of an engine
restart, a warning message with
0 km is displayed in the Driver
Information Centre, indicating that
after switching off the ignition an
engine restart will be prohibited.
After the prevention of an engine
start, a warning message is displayed in the Driver Information Centre
reminding the driver that AdBlue level
is insufficient.
To allow the engine to be restarted,
the tank should be refilled completely
or with a volume of at least 10 l of
AdBlue, depending on AdBlue
consumption.Warning stages: level warnings,
engine restarts prevented 1. The warning message TOP UP
ADBLUE is displayed after the
ignition is switched on and the
range is less than 2400 km.
Driving is possible without any
restrictions.
Refill the AdBlue tank soon.
2. ú illuminates and the warning
message TOP UP ADBLUE is
displayed after the ignition is switched on and the range is less
than 1500 km.
Refill the AdBlue tank soon.
3. ú illuminates and the warning
message XXX KM STOP ADD
ADBLUE is displayed after the
ignition is switched on and the
range is less than 1000 km. The
message is repeated every 100
km. When the range is less than
200 km the message is repeated
every 50 km.
Vehicle speed may be limited to
20 km/h after switching the engine
off and on again until the range is
reduced to 0 km.Refill the tank completely or with a
volume of at least 10 l of AdBlue
(depending on AdBlue
consumption) as soon as
possible.
4. Y illuminates during driving with
warning message 0 KM STOP
ADD ADBLUE :
The engine cannot be restarted
after switching off the ignition.
To allow the engine to be
restarted, refill the tank
completely or with a volume of at
least 10 l of AdBlue (depending on AdBlue consumption) as soon as
possible.
Illumination of control indicator Y may
be accompanied by a warning chime.
Warning chimes 3 108.High emission warnings
If the exhaust emission rises above a
certain value, warnings similar to the
range warnings as described above
will be displayed in the Driver
Information Centre. Control indicator
ú illuminates continuously together
with j 3 101 and a warning chime.

Driving and operating149Requests to have the exhaust system
checked and finally the
announcement that an engine restart
will be prevented are displayed in the Driver Information Centre.
Note
These restrictions are a legal
requirement.
At an AdBlue range of 1100 km, a
warning message is displayed in the
Driver Information Centre showing
the remaining distance the vehicle
can travel before engine restarts are
prevented. This warning message is
repeated every 100 km.
Seek the assistance of a workshop as
soon as possible.Warning stages: high emission
warnings 1. ú and A illuminate with warning
message CHECK ANTI-
POLLUTION .
Fault in the system that may result in a loss of engine power.
Seek the assistance of a
workshop as soon as possible.2. ú and A illuminate with warning
message ANTIPOLLUTION xxx
KM FAIL .
Indicates that in less than 1000 km an engine restart will be
prohibited after switching off the
ignition.
This warning message will be
repeated every 100 km. When the range is less than 200 km the
message is repeated every 50
km.
Vehicle speed may be limited to
20 km/h after switching the engine
off and on again until the range is
reduced to 0 km.
Seek the assistance of a
workshop as soon as possible.
3. ú and j illuminate with warning
message ANTIPOLLUTION 0 KM
FAILURE .
The engine cannot be restarted
after switching off the ignition.
Seek the assistance of a
workshop.Illumination of control indicators ú
and j may be accompanied by a
warning chime.
Warning chimes 3 108.
Version without level warnings in the Driver Information Centre
When the AdBlue gauge shows the
level is very low, control indicator ú
first illuminates continuously, then as
AdBlue level drops to a certain
amount ú flashes for a few seconds
then illuminates continuously.
Refill the AdBlue tank as soon as
possible. Refer to "Refilling AdBlue"
below.

150Driving and operatingDriving is possible without any
restrictions.Engine power loss
As the AdBlue level drops further,
control indicator ú flashes for a few
seconds then illuminates
continuously, accompanied by a
warning chime and loss of engine
power.
Note
These restrictions are a legal
requirement.
If AdBlue is not refilled before the tank
is empty, ú flashes and after the next
engine restart the vehicle speed will
be limited to approx. 20 km/h.
Immediately refill the tank completely or with a volume of at least 10 l of
AdBlue, depending on AdBlue
consumption.Warning stages: level warnings,
engine power loss
1. Range A. No control indicator:
Driving is possible without any
restrictions.
2. Range B. Control indicator ú
illuminates:
Refill the AdBlue tank as soon as
possible.
3. Range C. Control indicator ú
flashes for a few seconds each
time the ignition is switched on,
then illuminates continuously:
Refill the AdBlue tank as soon as
possible.
4. Range D. Control indicator ú
flashes for a few seconds each
time the ignition is switched on
then illuminates continuously,
accompanied by a warning chime:
Loss of engine power.
Refill the tank completely or with a
volume of at least 10 l of AdBlue
(depending on AdBlue
consumption) as soon as
possible.
5. Range E. Tank is empty and ú
flashes accompanied by warning
chimes:
Vehicle speed will be limited to
20 km/h after switching the engine
off and on again.
Refill the tank completely or with a
volume of at least 10 l of AdBlue (depending on AdBlue
consumption) as soon as
possible.

Driving and operating151High emission warningsIf the exhaust emission rises above a
certain value, control indicator ú
illuminates together with A 3 101.
Consult a workshop as soon as
possible.
If the fault is not rectified within a
certain distance, ú and j flash for a
few seconds then illuminate
continuously. Loss of engine power.
When the fault is critical, ú and j
flash continuously and after the next
engine restart the vehicle speed will
be limited to approx. 20 km/h.
Note
These restrictions are a legal
requirement.
Seek the assistance of a workshop as
soon as possible.Warning stages: high emission
warnings 1. ú and j illuminate:
Fault in the system. Seek the assistance of a
workshop as soon as possible.2. ú and j flash when the engine
is started then illuminate continuously:
Fault in the system resulting in a
loss of engine power.
Seek the assistance of a
workshop as soon as possible.
3. ú and j flash:
Fault in the system.
Vehicle speed will be limited to
20 km/h after switching the engine
off and on again.
Seek the assistance of a
workshop as soon as possible.
Illumination of control indicators ú
and j may be accompanied by a
warning chime.
Warning chimes 3 108.Refilling 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.

152Driving and operatingNote
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.
Note
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.
Note
When unscrewing the protective cap from the filler neck, ammonia fumes
may 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 filler flap located on the
right-hand side of the vehicle.
The filler flap can only be opened if
the vehicle is unlocked and the right-
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 3 232.
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.
2. Open right-hand door and pull fuel
filler flap to open.
3. Unscrew blue protective cap anticlockwise from the filler neck.
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 filler flap and right-hand door.

Driving and operating153AdBlue canisterNote
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.
Note
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 right-hand door and pull fuel
filler flap to open.3. Unscrew blue protective cap anticlockwise from the filler neck.
4. Open AdBlue canister.
5. 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 five
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 filler flap and right-hand door.
Note
Dispose of AdBlue canister
according to environmental
requirements. Hose can be reused
after flushing with clear water before
AdBlue dries out.Note
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 ú illuminates
together with j and a warning
chime. Seek the assistance of a
workshop immediately.
Depending on version, a
corresponding message may also
appear in the Driver Information
Centre 3 106.

Service and maintenance229protection 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 fluid Over time, brake fluid absorbs
moisture which will reduce braking
effectiveness. The brake fluid should
therefore be replaced at the specified
interval.
AdBlue Only use AdBlue to reduce the
nitrogen oxides in the exhaust
emission 3 147.

232Technical dataVehicle dataRecommended fluids andlubricants
Required engine oil qualityEngine oil quality: Europedexos 2✔
For countries with International
service interval 3 226, you may use
the engine oil qualities listed below:
Engine oil quality: Internationaldexos 2✔ACEA C3
engines with diesel particle filter✔ACEA A3/B4
engines without diesel particle
filter✔Engine oil viscosity gradesAmbient temperaturedown to
-25 °CSAE 0W-30 or
SAE 0W-40
SAE 5W-30 or
SAE 5W-40below
-25 °CSAE 0W-30 or
SAE 0W-40Capacities
Fuel tankFuel tank, nominal capacity [l]80 or 105
AdBlue tank
AdBlue, nominal capacity [l]22.5