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168 Driving and operating
Additionally the control indicator Y
flashes continuously and a warning
chime sounds repeatedly.
To restart the engine, the tank must
be filled with AdBlue first.
Refilling AdBlue
Caution
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.
Note
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.
Since AdBlue has a limited
durability, check the date of expiry
before refilling.
Note
A volume of at least 5 litres of AdBlue
must be added when refilling.
Otherwise the refilling of AdBlue
might not be detected by the system.
If AdBlue must be refilled at
temperatures below -11 °C, the
refilling of AdBlue might 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
When unscrewing the protective cap
from the filler neck, ammonia fumes
might 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.
The fuel filler flap is located at right
rear side of the vehicle.
The fuel filler flap can only be opened
if the vehicle is unlocked.
1. Remove key from ignition lock.
2. Close all doors to avoid ammonia
fumes entering the interior of the
vehicle.
3. Pull fuel filler flap at the recess
and open 3 212.
4. Unscrew protective cap from the
filler neck.
5. Open AdBlue canister.
6. Mount one end of the hose on the
canister and screw the other end
on the filler neck.
7. Lift the canister until it is empty.
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