Variant B – Venting fuel system
with hand pump at fuel prefilter
(optional)
1.
Unlock fuel priming pump, screw out han-
dle (1).
Note:
Catch emerging fuel with a suitable rag.
2.
Undo threaded vent plug (2) and unscrew by
approx. 3 to 4 revolutions.
3.
Operate the pump with the handle (1) until
bubble-free fuel emerges from the threaded
vent plug (2).
4.
Close threaded vent plug (2) and tighten by
hand.
Note:
Catch emerging fuel with a suitable rag.
5.
Undo threaded vent plug (3) and unscrew by
approx. 3 to 4 revolutions.
6.
Operate the pump with the handle (1) until
bubble-free fuel emerges from the threaded
vent plug (3).
7.
Close threaded vent plug (3) and tighten by
hand.
Venting fuel filter with cooler
1.
Unlock fuel priming pump at fuel prefilter, screw out handle, see above (→ Step 1).
2.
Provide a suitable container in which to collect the fuel.
Note:
Do
not fully unscrew threaded vent plug.
3.
Open threaded vent plug (arrowed).
4.
Operate the pump with the handle until bub-
ble-free fuel emerges from the threaded vent
plug (arrowed).
5.
Screw in threaded vent plug (arrowed) and tighten to specified torque using a torque wrench.
Name
Size
Type
Lubricant
Value/Standard
Screw
10
Tightening torque
6.5 Nm ±1.3 Nm
Venting fuel filter without cooler
1.
Unlock fuel priming pump at fuel prefilter, screw out handle, see above (→ Step 1).
2.
Provide a suitable container in which to collect the fuel.
MS150100/06E 2017-08
| Fuel System | 111
TIM-ID: 0000064753 - 001
