320CE - M104 engine will not start after 4-month & it seems no fuel reaching engine
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Joined: Jan 2018
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w124, w126, w215, w220, r129, r107
320CE - M104 engine will not start after 4-month & it seems no fuel reaching engine
Hi
I seek help with my 320CE which was stationary for roughly 4-months and now will not start again.
All service and the vitals were done before and the car was kept on a stationary battery charger -- however, when trying to start is seems that the engine doen't get any petrol.
Did the usual checks but couldn't find anything obvious. Even opened the fuel rail and no fuel pressure over there -- so why is the pump not working?
Strangely enough I have the same problem with my SL320, also M104 engine.
Anyone had similar experience?
Appreciate your help and advise.
I seek help with my 320CE which was stationary for roughly 4-months and now will not start again.
All service and the vitals were done before and the car was kept on a stationary battery charger -- however, when trying to start is seems that the engine doen't get any petrol.
Did the usual checks but couldn't find anything obvious. Even opened the fuel rail and no fuel pressure over there -- so why is the pump not working?
Strangely enough I have the same problem with my SL320, also M104 engine.
Anyone had similar experience?
Appreciate your help and advise.
Newbie
Joined: Jan 2018
Posts: 8
Likes: 0
1988 300CE M103, 1998 Volkswagen Passat TDI
It happened to my 300CE too, M103 engine. Mine sat for about 5 years.
Can you hear the fuel pump run for a second when you switch the key to ON?
Mine was starting maybe 3 out of 10 times. The problem was the fuel pump relay behind the battery, the solder points on the pcb had broken.
I recommend you take out all the relays and inspect them carefully including the OPV (it has a fuse on top, 10A, check that too), I had to resolder every one and each of them.
Can you hear the fuel pump run for a second when you switch the key to ON?
Mine was starting maybe 3 out of 10 times. The problem was the fuel pump relay behind the battery, the solder points on the pcb had broken.
I recommend you take out all the relays and inspect them carefully including the OPV (it has a fuse on top, 10A, check that too), I had to resolder every one and each of them.
