Maintenance and Service
Diesel engine
7.1.4.2 Exchange fuel fine filter and prefilter on the diesel engine
The fuel fine filter insert (14) (ROPA item no. 303025500) and the fuel prefilter insert
(15) (ROPA item no. 303025400) on the diesel engine must be replaced when the
engine oil is changed for the first time and at least once a year since then. When the
warning icon appears on the R-Touch, both filter inserts must be replaced.
(14) Fuel fine filter
(15) Fuel prefilter
ATTENTION
Danger of machine damage
Foreign objects, which ingress the fuel circuit, may cause blockages!
– In any case, make sure that no foreign objects ingress the filter housing.
– Do not wipe the inside of the filter housing.
– Avoid any ingress of water into the filter housing.
To exchange the fuel fine filter, proceed as follows:
– Park the vehicle and shut down the diesel engine.
– Shut off the fuel connection to the intermediate tank. Move the service lever (7) on
the fuel supply control unit (6) by 45° backward to the SERVICE position. Thus,
fuel from the intermediate tank can no longer flow into the diesel engine.
– Place a sufficiently large and fuel-resistant container to catch the fuel under the fil-
ter bowl and the drain hose (9).
– Move the lever of the 3-way valve (8) to the horizontal position (this allows the con-
tents of the filter bowl to flow into the collecting container).
Lever in operating position (safety flap
closed)
Lever in SERVICE position
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