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  #1  
Old 04-04-2006, 07:51 PM
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rough shifting

my 1980 300D is shifting very rough. i heard about changing something related to the vacum system but im not sure does anyone know what may be the problem? oil is clean. car has been sitting for a few years.
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Old 04-04-2006, 07:59 PM
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101 things it can be. Troubleshoot the vacuum system and then go from there.

http://dieselgiant.com/mercedesvacuumtroubleshooting.htm
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Old 04-04-2006, 11:10 PM
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the finger on the white valve on top of the valve cover is worn out is this the cause of bad shifting? i am very confused of this topic because of other listings. and does my 300D have a green dashpot vavle ? i cant find it.
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Old 04-04-2006, 11:17 PM
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the finger on the white valve on top of the valve cover is worn out is this the cause of bad shifting? i am very confused of this topic because of other listings. and does my 300D have a green dashpot vavle ? i cant find it.
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Old 04-05-2006, 12:30 AM
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does anyone know?
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Old 04-05-2006, 01:30 AM
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anybody?
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Old 04-05-2006, 01:41 AM
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Depends. Some models use it for EGR, trans, or both.

It can cause shifting problems even if its for the EGR. The vavle(s) can leak and cause a loss of vacuum to the transmission. you should check it for leaks.
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  #8  
Old 04-05-2006, 11:36 AM
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vacuum issues

I had to play with my vacuum set up for two weeks before I got it to behave in a way I could be happy with!
Mines an SDL and has MANY things that need tweeked!
yours should be pretty simple comared to mine!
ther'es ALOT of articles pertaining to this problem ~~~just be diligent!
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