Fuel System
Only use the grades of fuel recommended in the fuel
specification, see Technical Data page 98. Always
observe the greatest cleanliness during re-fuelling and
work on the fuel system.
All work on the unit injectors of the engine must be
carried out by an authorized workshop.
WARNING!
Fire hazard. When carrying out work on the fuel system
make sure the engine is cold. A fuel spill onto a hot
surface or an electrical component can cause a fire.
Store fuel soaked rags so that they can not cause fire.
Engine Fuel Filter Replacement
1 Close the fuel tap(s).
2 Clean the filter holder and place a suitable vessel
under the fuel filter.
3 Release the pressure in the filter by first opening
the drain tap (1) on the bottom of the water sepa-
rator and then the purging nipple (2) so that the filter
is emptied of fuel.
4 Undo the union (3) from the water separator (4) and
unscrew the water separator from the filter.
5 Unscrew the filter. Use a filter wrench if necessary.
6 Clean the sealing surfaces on the filter holder.
Make sure that the filter is clean and that the sealing
rings are undamaged. Moisten the sealing rings
with engine oil, including the rubber seal located in
the thread in the center of the filter.
IMPORTANT!
Do not fill the new filter with fuel before installa-
tion. Dirt may get into the system and cause
damage and malfunctions.
Maintenance
66 7748887 04-2008
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