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Car Forum / Mercedes-Benz Cars / October 20061989 300 sl where is the fuel pump relay located ?
can anyone help with locating the fuel pump relay on a 1989 300sl auto. i have been having problems and someone suggested this may be the answer, but i can not find it.ps its a rhd. thanks lynne behind the dash cluster? > can anyone help with locating the fuel pump relay on a 1989 300sl auto. > i have been having problems and someone suggested this may be the > answer, but i can not find it.ps its a rhd. thanks lynne > behind the dash cluster? > > > can anyone help with locating the fuel pump relay on a 1989 300sl auto. > > i have been having problems and someone suggested this may be the > > answer, but i can not find it.ps its a rhd. thanks lynne Just replaced the FPR on a 91 420SEL. It's waz located on the firewall, under the hood, behind the engine. It had two very similar looking 1 inch by 3 inch units located next to each other, but the pin pattern was different. Wasn't cheap either! What's the fuel system doing? The SEL's owner had a shop suggest changing both fuel pumps, the relay, the sieve and fuel fliter ($1000+) cause it was dying/stumbling The fuel filter had a very fine black powder in the gas I dumped out (filtered it thru a couple of coffee filters). Didn't waste money on the pumps and the car has been running fine ever since. {finger's crossed}...Ken > > > can anyone help with locating the fuel pump relay on a 1989 300sl auto. > > > i have been having problems and someone suggested this may be the > > > answer, but i can not find it.ps its a rhd. thanks lynne The FPR potentially having the number 003 545 25 05 on the unit....K > > > > can anyone help with locating the fuel pump relay on a 1989 300sl auto. > > > > i have been having problems and someone suggested this may be the > > > > answer, but i can not find it.ps its a rhd. thanks lynne thanks ken, its an intermittant problem whereby it starts and runs for 1 or 2 seconds then cuts out.i will look at your suggestions now and get back to you .i live in zimbabwe so you can bet it will be a lot more expensive and probably un attainable!!!!! LYNNE > thanks ken, its an intermittant problem whereby it starts and runs for > 1 or 2 seconds then cuts out.i will look at your suggestions now and > get back to you .i live in zimbabwe so you can bet it will be a lot > more expensive and probably un attainable!!!!! LYNNE I'd suggest somehow getting a fuel pressure test and check if the pressure's correct..that would eliminate the FPR Easier....listen for the whirring noise of the fuel pump(s) when the car's running. The 420SEL I was working on apparently had a plugged up fuel filter, but changed the FPR also thanks for all your replies. i have finally found the FPR in the passenger foot well behind the bulkhead or as you call it firewall. i removed it and cleaned the connections but feel sure it needs replacing. will hope it lasts until i can get to the real world and buy a new one!!!!! lynne The fuel pump relay is about the size of cigarette box... slightly bigger and wider... black in color and has the word 'kickdown' on it... It would probably be located in the fusebox or along the firewall... or even behind the cover behind the battery. thanks "tiger', will go and look at your suggestions now and get back to you. lynne |
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