Vehicle Interior - Mercedes-Benz Sprinter Operating Instructions Manual

Vehicle interior

248
Fuel system
Draining the fuel filter
G
WARNING
Fuel is highly flammable. Improper handing of
fuel creates a risk of fire and explosion.
Avoid fire, naked flames, smoking and creat-
ing sparks under all circumstances. Switch off
the ignition and auxiliary heating before car-
rying out work to the fuel system. Always wear
protective gloves.
H
Environmental note
Dispose of the water-fuel mixture in an envi-
ronmentally responsible manner.
! If the : indicator lamp lights up, drain
the fuel filter with water separator immedi-
ately. Otherwise, the engine may be dam-
aged.
4-cylinder engine
6-cylinder engine
Vehicle with a diesel engine: if the : indi-
cator lamp in the instrument cluster goes on,
drain the fuel filter with the water separator
immediately.
i Mercedes-Benz recommends that you have
this maintenance work carried out at a quali-
fied specialist workshop.
X
Park the vehicle safely and secure it from roll-
ing away.
X
Switch off the auxiliary heating system
Y
( page 117).
X
Switch off the engine.
X
Y
Open the bonnet (
X
Place a suitable receptacle under drain
hose :.
X
Turn the key to position 2 in the ignition lock.
X
Open drain plug ; immediately until the
water/fuel mixture flows out of drain hose :.
X
Screw in drain plug ; as soon as approx-
imately 0.2 litres of the water/fuel mixture
has been collected.
The electrical fuel pump automatically halts
the flow of the water/fuel mixture after
30 seconds.
X
After draining, turn the key back to position 0
in the ignition lock.
X
Dispose of the collected water/fuel mixture
in an environmentally responsible manner,
e.g. at a qualified specialist workshop.
X
Check drain plug ;. The drain plug must be
closed.
When the engine is running and drain hose ;
is open, fuel is lost through drain hose :.
X
Y
Close the bonnet (
If the : indicator lamp does not go out after
draining:
X
Drain the fuel filter again.
X
If the : indicator lamp does not go out
after draining for the second time, have the
cause checked immediately at a qualified spe-
cialist workshop.
Vehicle interior
Air filter for rear-compartment air
conditioning
! Check the air filters regularly for signs of
contamination. Clean or replace a dirty filter
mat. The dirt can otherwise lead to damage to
the air-conditioning system.
page 242).
page 242).