I have an 03 745li, i changed out the alternator and the battery. i started to get an error from my transmission, (transmission control module can chip failure and serial communication link transmission control module.) my car started driving in safe mode and then one day it would not go into gear. i cant go forward or reverse. do i need a new transmission or do i just need to replace the module? Please help me.
Hello and welcome to the forum! Did you pull the code or was this a message that appeared in the car? If you have a scanner, you can get a definitive answer as to where the issue is localized.
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I recently bought a 745LI and also have transmission codes. I have not experienced the safe mode yet. I am trying to get into my BMW specialized indy and tuner shop in the next few days to fix all my issues. What are the code numbers you are seeing? I will ask them for you, and about recommended actions. If you desire that.
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