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Old 02-22-2015, 04:15 PM
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Join Date: Feb 2015
Posts: 1
500sel no power

I just inherited a 1985 500sel with 128k miles on it. Starts right up with no miss.
Problem: no power the car wont drive up my driveway. starts , idles, but wont accelerate with any momentum.
I replaced the injectors still no power.
Any help will be greatly appreciated.
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Old 02-23-2015, 12:17 AM
TnBob's Avatar
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Join Date: Dec 2009
Location: Shelbyville, Tn
Posts: 1,907
Have you checked you tranny fluid ?
1985 300D 198K sold
1982 300D 202K
1989 300E 125K
1992 940T

"If you dont have time to do it safely, you dont have time to do it"

"The democracy will cease to exist when you take away from those who are willing to work and give to those who would not."
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Old 02-23-2015, 09:44 AM
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Join Date: Jan 2003
Location: Matthews, NC
Posts: 1,356
Could you give us a little more information. Has the car been sitting for a long time before you got it? When it won't accelerate, does the RPM go up but the car doesn't move? When this happens is the engine still smooth or is it running rough?
I have an 84 500SEL and I assure you it will go up any driveway I have ever seen. These cars were built to run 140-150 MPH all day long, and that takes Power.
If you could help us get a better idea of what the car is doing I am sure we can help. Please don't just throw parts at it until it runs correctly. If you do it may end up being the most expensive car you have ever owned. On the other hand, if you only replace/fix what is needed it can be the best and least expensive car you have ever owned. We can help.

84 500 SEL (307,xxx miles)
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