94 S 350
At 600 rpm car idles fine. At 1000 rpm shakes and stumbles feels like a miss. At 1200 engine smooths out no stumble. car got 26-28 mpg now falling 20-22 also alot of blue smoke when cold gone after warm up. ? What mite this be?

Curious:
Did you repair it?
What was the problem?

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Dynamometer.
Heat exchanger durability.
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1985 300SD
1983 300D
1984 190D
2003 Volvo V70
2002 Honda Civic

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Yes it was repaired car was under warranty and MB repaired it with a new long block, injector pump and a new air mass. Car now runs like a dream between 25 and 29 mpg and thats driving it hard.

WHunter, You have way too much time on your hands.... pulling up posts from two years ago....
LOL

Strange indeed..... No one replied until two years later.... lol

Two years is not that long when you consider how old the universe is............

William Rogers..........

... or how long it takes Plantman's sister's neighbor to replace an IP...

Sixto
95 S420
87 300SDL

Or how long it took for me to get rid of the 300SEL 6.3 that on a quiet night you could hear it rusting.