If the : indicator lamp in the instrument
cluster goes on, drain fuel filter with water sep-
arator = immediately.
i
We recommend that you have this mainte-
nance work carried out at a qualified special-
ist workshop.
X
Park the vehicle safely and secure it from roll-
ing away.
X
Switch off the auxiliary heating system .
X
Switch off the engine.
X
Open the hood (Y page 218).
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 qt (0.2 l) 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
Close the hood (Y page 219).
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 the rear-compartment air
conditioning
!
Regularly check the air filters for visible dirt.
Clean or replace a dirty filter mat. The dirt may
otherwise lead to damage to the air-condi-
tioning system.
Filter magazine, located on the roof in the rear
compartment
An increased amount of sand or dust may collect
in the air filter of the rear-compartment air con-
ditioning when you drive on dusty or sandy
roads.
X
To remove the filter mat: carefully pry
cover : out of recesses ; and remove.
X
Remove the filter mat from the air duct.
X
To clean the filter mat: wash the dirty filter
mat with clear water.
X
Leave the filter mat to dry.
i
The filter mat must not be cleaned or dried in
a machine.
X
To install the filter mat: insert the filter mat
into the air duct.
X
Replace and engage cover :.
Maintenance
General notes
H
Environmental note
Observe measures to protect the environ-
ment when working on the vehicle. You must
observe the legal requirements when dispos-
ing of service products, e.g. engine oil. This
also includes all components, e.g. filters,
which have come into contact with service
products. Any qualified specialist workshop
can provide information about this.
Dispose of empty containers, cleaning cloths
and care products in an environmentally
responsible manner. Comply with the instruc-
tions for use of the care products.
Maintenance
225
Maintenance and care
Z
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