Delay in transmission
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Junior Member
Joined: Mar 2018
Posts: 17
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From: California
2005 E55 AMG, 1988 420 SEL, 2000 S500
Delay in transmission
So maybe about two years ago I had my transmission rebuilt and after that I noticed a delay in engaging from park to drive or reverse. (Yes I hardly drive my car which is why I never really fixed it before) I was told it’s my TCU so I took it apart and did see alittle oil in it. I just wanted to confirm that it would probably be the main issue before I get a new one.
MBWorld Fanatic!
Joined: Jun 2020
Posts: 1,179
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2006 CLS55 AMG, 2005 SLK 350 AMG
So maybe about two years ago I had my transmission rebuilt and after that I noticed a delay in engaging from park to drive or reverse. (Yes I hardly drive my car which is why I never really fixed it before) I was told it’s my TCU so I took it apart and did see alittle oil in it. I just wanted to confirm that it would probably be the main issue before I get a new one.
MBWorld Fanatic!
Joined: Feb 2017
Posts: 2,337
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From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
TCU is shot once it is contaminated with trans oil. In addition to resolving the trans fluid wicking up the wiring harness you need to replace your TCU. This is the unit to use: https://mkultra-electronics.company.site/ You can do a search here on them and Troy Merry. Their TCU is sealed to keep it from being damaged from future wicking. Good luck.
