Engine OM642
Engine OM651 rear wheel drive
Engine OM654 rear-wheel drive and all-wheel drive
#
Park the vehicle in a safe location and secure it
against rolling away.
#
Switch off the auxiliary heating (
/
page 106).
#
Switch off the vehicle.
#
Open the hood (
/
page 212).
#
Place a suitable collecting pan beneath drain
hose
2
.
#
Switch on the vehicle.
#
Open drain screw
1
until the water/fuel mix-
ture emerges from drain hose
2
.
#
Close drain screw
1
as soon as around 0.2 qt
(0.2 liters) of the water/fuel mixture has been
collected.
After 30 seconds, the electrical fuel pump
automatically stops the discharge of the
water/fuel mixture.
#
Switch the vehicle off after draining.
#
Dispose of the collected water/fuel mixture in
an environmentally responsible manner, e.g. at
a qualified specialist workshop.
#
Check that drain screw
1
has been closed.
If the vehicle is running while drain screw
1
is
open, you will lose fuel through drain hose
2
.
#
Close the hood (
/
page 212).
#
!
The indicator lamp does not go out after
draining: drain the fuel filter again.
#
!
The indicator lamp does not go out after
the second draining: consult a qualified spe-
cialist workshop.
Mercedes-Benz recommends that you have the
fuel filter drained at a qualified specialist work-
shop.
Notes on washing the vehicle in an automatic car
wash
&
WARNING Risk of accident due to reduced
braking effect after washing the vehicle
The braking effect is reduced after washing the
vehicle.
#
After the vehicle has been washed, brake
carefully while paying attention to the
traffic conditions until the braking effect
has been fully restored.
*
NOTE Risk of damage to the paintwork
and plastic components
If you wash your vehicle in Touchless Auto-
matic Car Wash systems that use special
220 Maintenance and care