1 fuel pump or 2 fuel pumps?
Thread Starter
Member
Joined: Dec 2016
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From: Pittsburgh Pa. - Mebourne, Florida
1993 190E Sportline; 1992 190E 2.3
1 fuel pump or 2 fuel pumps?
I just bought a 1991 190e 2.3 8v. Why does it have only 1 fuel pump? My 1992 1992 2.3 8v has two pumps. My 1993 190e 2.6 has 2 pumps.
Thoughts anyone??
Dave
Thoughts anyone??
Dave
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Joined: Mar 2016
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From: SF Bay Area, CA
190E 2.6L 1989, 190E 2.6L 1988, BMW 535dXdrive 2014, BMW 428i 2015
I have seen this question pop up in forums, and honestly, now I do not know the answer. I know MB used single pumps for really early '80's cars but switched to a double pump set-up when they introduced the 2.6L in the late 80's (or earlier) maybe when they realize a fuel pump is a key component and they really want a better set up.
Strange that your late model car still has a single pump. And clearly it came out of the factory that way because the harness is for a single pump.
Strange that your late model car still has a single pump. And clearly it came out of the factory that way because the harness is for a single pump.
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1991 190E 2.3
I also have a 1991 190E 2.3 8v and my car just has the 1 fuel pump. My car runs like an angel. What the reasoning was for going with 2 fuel pumps rather than just the 1 fuel pump for the later cars, idk. I guess it's called German engineering nitty gritty logic which in my personal experience can be pretty unique. Next time I talk to my friend at the MB Classic Center I'll try and remember to ask him if he knows what that reasoning might be.
Thread Starter
Member
Joined: Dec 2016
Posts: 129
Likes: 19
From: Pittsburgh Pa. - Mebourne, Florida
1993 190E Sportline; 1992 190E 2.3
Yea weird......
Thanks for the responses. The pressures were in spec, 5.5 bar system and 5.1 differential. I didn't do the volume test yet.
Thanks for the responses. The pressures were in spec, 5.5 bar system and 5.1 differential. I didn't do the volume test yet.
