Def Filler Neck - Mercedes-Benz Sprinter Operator's Manual

Refueling
150
i
If you switch off the engine at a low out-
side temperature and add DEF, restart the
engine after refueling. If you leave the vehi-
cle parked without restarting the engine
and the DEF freezes in the DEF tank, the
on-board computer will only be able to reg-
ister the new fill level after a defrosting
period of up to 60 minutes. During this time
the engine may only be operated in neutral.
You will find further information on DEF in the
"Service products" section (
Refueling procedure
DEF filler neck in the engine compartment
Remove the key from the ignition lock.
X
Switch off the auxiliary heating system
X
( page 130).
Y
Open the hood.
X
Close all vehicle doors so that no ammonia
X
vapors can enter the vehicle.
i
Do not inhale any ammonia vapor which
may escape when you unscrew cap :.
Ammonia vapors have a pungent odor.
However, they are neither toxic nor hazard-
ous to health in this concentration.
Turn blue cap : counter-clockwise and
X
remove it.
Only fill up the DEF tank until the DEF level
X
is visible in the filler neck.
Replace blue DEF filler neck cap : on the
X
filler neck and turn clockwise.
You will hear a click when cap : is fully
closed.
DEF filler neck on the right-hand vehicle
side
page 321).
Y
The DEF reservoir on the right-hand side of the
vehicle (example: Cab Chassis)
Fuel filler cap
X
X
X
X
X
X
i
X
Remove the key from the ignition lock.
Switch off the auxiliary heating system
( page 130).
Y
Remove tool A for unlocking tank filler
cap ; from the footwell on the co-driver's
side ( page 276).
Y
Close all vehicle doors so that no ammonia
vapors can enter the vehicle.
Pull cover ? up, turn 90° and release.
Insert tool A into hole = of tank filler
cap ;.
Do not inhale any ammonia vapor that
may escape when you unscrew tank filler
cap ;. Ammonia vapors have a pungent
odor. However, they are neither toxic nor
hazardous to health in this concentration.
Turn blue filler cap ; counter-clockwise,
remove it and let it hang from strap :.