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W124 E200, No power to fuel pump

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4K views 3 replies 2 participants last post by  Brightjae  
#1 ·
Hi guys, my w124 E200 (m111.940) recently broke down, it suddenly stopped on the road as if I had run out of gas, it started up again after at least 10 tries. I took the opportunity to bring it home but since then it won't start at all! I noticed afterwards that the fuel pump no longer made a sound when I turned the key. So I first changed the fuel pump with a new one (it had trouble accelerating at high speed and climbing hills on the highway so for me it was logical that it was the fuel pump that was starting to fail ) but still impossible to start.. I exchanged the fuel pump relay with my brother’s relay (w124 E220, it's the same relay) his car started, not mine.. so it's not the fuel pump relay. And I can hear the click click of the relay. I recently changed the OVP to an original one but no change. I saw on other forums that you can force the fuel pump by connecting pin 87 and pin 10 of the fuel pump relay but on mine I don't have pin 10 (I would try to put a photo) I'm starting to have no solution, if someone can enlighten me.. thank you in advance
-Pierre
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#3 ·
Thanks for your reply, I already saw this video but it’s not the same relay :(
I think I mistake the numbers, it's not pin 87 and 10 but 87 and 30, but I don't have pin 30 either ^^
 
#4 ·
Update: I just realized on looking more closely that there is a cut wire that goes from the small green relay to the left of the ecu (photo below) there was tape at the end of the two wires, on the relay side the two wires are twisted together, and on the ecu side it's a clean cut, it's strange. Someone know what it's for??, could that be the problem?
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