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Old 05-09-2003, 10:51 PM
maheath maheath is offline
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Join Date: Sep 2001
Location: Austin, TX
Posts: 563
I've got 145k on mine and the fuel injectors are flaky. It seems to run fine when I've got fuel injector cleaner in the tank, but has a rough idle (in drive) if I don't. I've ordered a new set of injectors et al. and should be replacing them next week.

Lots of threads on rough idles for the M103. I think that's actually a bonus. It seems like there are so many more M103 postings than any other type of engine. Lots of good information out there.
Mike Heath
1988 560SL Black/Palomino
1988 300SEL Black Pearl/Burgandy
1984 500SEC Anthracite Grey/Palomino
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