300E Not Starting When Hot
07-05-2002, 05:27 PM
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300E Not Starting When Hot
My 300E 24V 1990 would not start today when hot.
The engine would crank OK but no fuel getting through.
The fuel pump was not running. I left the bonnet fully open with the ignition switch on.
After about 20 minutes the fuel pump began to run and sure enough it started and ran home faultlessly.
I have heard the fuel pump relay or "OVP?" relay are a common source for this type of problem.
Can any one tell me if this is right and if so which relay is which in the relay housing.
There are four in there, two small ones and one large black rectangular relay and a bigger one next to it.
PS what a OVP relay?
The engine would crank OK but no fuel getting through.
The fuel pump was not running. I left the bonnet fully open with the ignition switch on.
After about 20 minutes the fuel pump began to run and sure enough it started and ran home faultlessly.
I have heard the fuel pump relay or "OVP?" relay are a common source for this type of problem.
Can any one tell me if this is right and if so which relay is which in the relay housing.
There are four in there, two small ones and one large black rectangular relay and a bigger one next to it.
PS what a OVP relay?
07-08-2002, 08:54 PM
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260E , 1989 (for now)
OVP= Over Voltage Protection.
It is located inside the bonnet (hood) on the right side of the car, behind the battery (you have to remove the plastic cover to get access to it.)
it is the one with a red fuse on top..
Good luck
JackD
It is located inside the bonnet (hood) on the right side of the car, behind the battery (you have to remove the plastic cover to get access to it.)
it is the one with a red fuse on top..
Good luck
JackD
