1989 230ce fuel pump electrical feed prob.

[coupe124]

Now and again I loose the electrical feed to the fuel pump, engine cranks will not start.
1- Have run a direct feed from the battery via a switch to the pump, this will start the car and will run fine.

2-Turn the switch off and most of the time the car will start and run ok.

3-Is the fuel pump relay at fault and where is it?? the relays by the fuse box are not named.

4-Is there a fuel cut out??

5-Fuel solenoid valve in the system, haynes not very clear.

Need some help ASAP, HAVE A 1000 MILE ROUND TRIP SOON!!

Thanks.................124coupe

 

[Xtractorfan]

check this out no 105 in the 2nd drawing is your relay
http://www.detali.ru/cat/oem_mb2.as...GM=717.412&CT=F&cat=15T&SID=54&SGR=040&SGN=03

 

[roofless]

hope you have a online fuse on youre direct feed also if the fuel pump still has its own wires on it might do more harm to other parts

 

[coupe124]

hope you have a online fuse on youre direct feed also if the fuel pump still has its own wires on it might do more harm to other parts

Wired in with a circuit breaker.Thanks

Will chx out the diagram, thanks both.

Coupe124.............

 

[coupe124]

check this out no 105 in the 2nd drawing is your relay
http://www.detali.ru/cat/oem_mb2.as...GM=717.412&CT=F&cat=15T&SID=54&SGR=040&SGN=03

Hi Xtractorfan,
Thanks for that ,do you know where 105 is, in the engine bay.Cannot find the blxxxy thing.
Appreciated
coupe124............

 

[Ellsy Tanners]

Its behind the battery behind the black plastic cover.

 

[coupe124]

Its behind the battery behind the black plastic cover.

Appreciated and thanks.
Will let you know the outcome.

coupe124...........