X
Start the engine and bleed the fuel system.
Run the
engine for approximately 1 minute.
The fuel system bleeds automatically.
If the engine stalls or does not start, bleed
the fuel system manually (Y page 86).
X
Check the fuel prefilter with water separa-
tor for leaks while the engine is running.
Replacing the fuel filter element
G
WARNING
There is an increased risk of fire when han-
dling
fuels
as they are highly flammable. Avoid
fire, naked flames and sparks, and refrain
from smoking when handling fuels.
H
Environmental note
Dispose of used filter elements, seals and fuel
residue
in
accordance with relevant local reg-
ulations.
H
Environmental note
If the diesel fuel level (fuel tank) is above
engine height, the feed line must be blocked
off during filter replacement. Otherwise, die-
sel can drain out.
Example: OM 926 LA
X
Clean the outside of the filter housing.
X
Open the fuel filler cap to prevent excess
pressure in the fuel tank.
X
Unscrew fuel filter cap : using a socket
spanner insert (SW 36).
X
Pull fuel filter cap : with filter element
= out of the filter housing slightly. Allow
the fuel to drain off.
X
Remove the cap and filter element. Unclip
the filter element by pressing the sides of
the lower edge of the filter element.
R
Make sure that no foreign objects enter
the filter housing.
R
Never wipe inside the filter housing.
R
The
ingress of water must be prevented.
X
Replace sealing ring ; with a new one
(grease lightly).
X
Clip new filter element = into housing
cover :.
X
Screw on and tighten oil filter cap : with
filter element = (tightening torque:
25 Nm).
X
Put on the fuel filler cap and tighten it.
X
Start the engine and bleed the fuel system
(Y page 86).
X
Run the engine for approximately 1 minute.
The fuel system bleeds automatically.
If the engine stalls or does not start, bleed
the fuel system manually.
X
Check the fuel filter for leaks with the
engine running.
Replacing the AdBlue
®
/DEF filter
G
WARNING
If the AdBlue
®
/DEF tank
cap is opened at high
temperatures, ammonia vapours may escape.
Work schedules
69
Notes on maintenance
Z
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