F 53 23
- Remove the clip (F) from the inlet con-
nection of the filter (G) and remove
the filter.
- Examine the filter for soiling, particles
and cracks.
m
On finding particles or cracks, also
check the filter of the dosing unit!
- Fit the O-ring (H) in the groove on the
intake pipe
- Insert the inlet connection of the new
filter into the tank intake pipe.
- Fit the clip (F) over the groove on the
filter inlet connection.