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Old 01-23-2005, 11:10 AM
Doug Wilson Doug Wilson is offline
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Join Date: Nov 2002
Location: Nebraska
Posts: 58
1975 450SL fuel pump relay

My 1975 450 SL wouldn't start. I was not getting the familar buzz when I tried to start it and with the help of folks here on Shopforum we narrowed it down to the fuel pump relay. I ordered the relay from Phil and was going to install it this morning. What I found (right above the fuse panel) was two banks of three relays with a type of bracket over those with one more on the bracket. There was another larger relay tucked up next to the fire wall and another one closer to the dash. The relay that Phil sent is much larger than the seven grouped together. Can anyone tell me which relay is the fuel pump relay? I have been trying to chase it down on a wiring diagram out of a Chilton book without much success. I hate to just start plugging it in each locaton hoping to get the right one, without damaging something else.
Thanks
Doug
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