B Hall
Member
- Joined
- Oct 15, 2009
- Messages
- 14
- Reaction score
- 0
- Location
- Offaly, Ireland. Saudi Arabia
- Your Mercedes
- '92 model 300E-24 and '93 model E500
Hello,
My w124 300e-24 has recently developed a problem where it won’t start. I’ve been checking on here for some ideas but nothing seems to have worked and I’d appreciate some extra help. As I work overseas, the car is parked for up to two months at a time with it having to be jump started sometimes due to a flat battery when I get home.
When I would first try to start after returning home, it would run for maybe five minutes then stall. It would start again and run for another five minutes and stall. After the third or fourth time of trying, the car would start and run for maybe half an hour and then just die while driving on the road. Other times it would run perfectly for the duration of my holiday.
It now has stopped completely and will not start.
These are the following symptoms so far that I have found.
At key on the electric fuel pump can be heard running under the car. I have also opened the fuel supply pipe to the fuel distributor at the engine and switched on the key to confirm that petrol is actually getting to the engine which it is.
I opened the fuel supply pipes from the distributor which go into the head of the engine and they are all injecting petrol.
I have removed the spark plugs and cranked the engine over. They are all sparking.
The car had a new distributor and distributor cap fitted two years ago.
I’ve checked all fuses are ok.
I have also replaced the OVP relay but to no avail. The fuse is also good on the OVP relay.
I did remove the fuel distributor to check it and found a pool of petrol in the inlet manifold which I dried out. At this time I also checked that the spark plugs were dry as well.
On a final note, if you keep cranking for a long period it does sometimes make an attempt to start but never does.
At this stage I’m out of ideas and I’m beginning to think it is a sensor, harness or ECU problem or perhaps some relay I'm unaware of but I don’t where to go next. I’m hoping that jump starting the car hasn't damaged some delicate electrics.
Any information would be a great help.
Thanks in advance.
Brian.
My w124 300e-24 has recently developed a problem where it won’t start. I’ve been checking on here for some ideas but nothing seems to have worked and I’d appreciate some extra help. As I work overseas, the car is parked for up to two months at a time with it having to be jump started sometimes due to a flat battery when I get home.
When I would first try to start after returning home, it would run for maybe five minutes then stall. It would start again and run for another five minutes and stall. After the third or fourth time of trying, the car would start and run for maybe half an hour and then just die while driving on the road. Other times it would run perfectly for the duration of my holiday.
It now has stopped completely and will not start.
These are the following symptoms so far that I have found.
At key on the electric fuel pump can be heard running under the car. I have also opened the fuel supply pipe to the fuel distributor at the engine and switched on the key to confirm that petrol is actually getting to the engine which it is.
I opened the fuel supply pipes from the distributor which go into the head of the engine and they are all injecting petrol.
I have removed the spark plugs and cranked the engine over. They are all sparking.
The car had a new distributor and distributor cap fitted two years ago.
I’ve checked all fuses are ok.
I have also replaced the OVP relay but to no avail. The fuse is also good on the OVP relay.
I did remove the fuel distributor to check it and found a pool of petrol in the inlet manifold which I dried out. At this time I also checked that the spark plugs were dry as well.
On a final note, if you keep cranking for a long period it does sometimes make an attempt to start but never does.
At this stage I’m out of ideas and I’m beginning to think it is a sensor, harness or ECU problem or perhaps some relay I'm unaware of but I don’t where to go next. I’m hoping that jump starting the car hasn't damaged some delicate electrics.
Any information would be a great help.
Thanks in advance.
Brian.