MERCEDES BENZ 190E FUEL PUMP PROBLEM
1986 Mercedes Benz 190e • 235,000 miles
I just replaced the fuel pump on my mercedes 190e and im still not getting the fuel pump to turn on with the ignition.How do i locate and test the relay for my problems?
November 23, 2012.
November 23, 2012.
I located mine on a 190E below the windshield , under the hood, on the passenger side, in board of the battery. there were 2 together in a relay center outboard of the fuel computer. one said KLIMA and the other said konstaadt or something on it. the f/p was behind the klima and the ovp was an aluminum tower shape with a red top containing a 10 amp atc fuse. autohaus sells a kit for test jump which eliminates the relay during testing. its cheap. and it took a day or two. but my chevy runs great when i go to the wrecking yard to find expensive german parts to try. for cheap.
Oh, the tests. i went to the public library and they offered a mitchell database. it included the test procedure, jumping the relay pins and gave illustrations . i also had a chance to consult bulletins and recalls info for my vehicle. the component locator was sorta vague and pics are a little ambiguous. once i located the ovp relay, i just went to the two nearby. printing a schematic came from a haynes manual they had. 10 cents a page for printing . couldnt take the paper book out in the rain. DVOM and test light came from harbor freight tools . relays, if found faulty, are repairable to a small extent but they are available on ebay for less than $35. looking at the pics on there can help locate and identify the parts. theres also mercedes info sheets called startekinfo. ask the librarian. or you can google it
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