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MB Paul
MB Paul, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3567
Experience:  Qualified Mercedes Benz Diagnostic Technician - 20+ years experience - Workshop Foreman for Mercedes
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TCU in my 2000 S430 seems to not be working. will not come

Customer Question

TCU in my 2000 S430 seems to not be working. will not come out of low gear. I want to replace it
JA: How old is the transmission? Have you checked the brake switch?
Customer: Original part. No I did not check anything else AAMCO trans expert gave diagnosis from codes.
JA: Are you fixing your S430 yourself? What have you tried so far?
Customer: Would like to repair myself. I only tried to reset transmission.
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 7 months ago.
Category: Mercedes
Expert:  Lou P. master tech replied 7 months ago.

Hello, my name is***** and i will do my best to assist you.I am going over your story now and will reply back soon with some info,thanks!

Expert:  Lou P. master tech replied 7 months ago.

the transmission control module is rare to fail, what are the codes that you have gotten?