4.
Open threaded vent plug and ensure that fuel
does not emerge continuously.
Result:
The filter can now be changed!
5.
If fuel emerges continuously, check shutoff
valve in fuel supply, notify Service.
Note:
• As soon as the filter housing is opened,
absolute cleanness is imperative!
• Carefully extract the filter element straight
up avoiding contact with the upper edge of
the cylinder if at all possible to prevent
contamination of the fuel remaining in the
filter housing.
6.
Unscrew filter cover (1) and withdraw with fil-
ter element (3) from filter housing (4).
7.
Unclip filter element (3) from filter cover (1).
8.
Install new O-ring (2) on filter cover (1).
9.
Coat new O-rings on filter cover and filter ele-
ment with fuel.
10.
Clip new filter element (3) into filter cover (1).
11.
Screw filter cover (1) into filter housing.
Result:
Filter cover (1) must lie flat on the housing
(4).
12.
Use a torque wrench to tighten filter cover (1) to specified tightening torque.
Name
Size
Type
Lubricant
Value/Standard
Filter cover
Tightening torque
40 Nm
13.
Replace other filter elements in the same way.
14.
Close threaded vent plug again.
15.
Open fuel supply.
16.
Vent fuel prefilter (→ Page 141).
17.
Check fuel prefilter for leaks.
MS15058/04E 2018-12
| Fuel Filter | 137
TIM-ID: 0000066395 - 006
Summary of Contents for 20V4000G44F
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