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Mini Cooper R53 auto Transmission Problem

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Old Jan 7, 2025 | 07:42 AM
  #1  
kollpp's Avatar
kollpp
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Mini Cooper R53 auto Transmission Problem

Hi,
been reading through the forum but didn’t find similar issue. My transmission start acting up, 1 and 2 gear really rough, looks like car doesn’t know when it should shift. Sometimes stuck on 3rd gear.

I don’t think is common issue of solenoids or valve body, replace solenoids 20k ago and was shifting fine after.

what is very odd is when I connect INPA to the car I’m not able to communicate to transmission module anymore like I did before.

maybe I have a bad connection or a bad module?

where should I look for wiring?
 
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Old Jan 14, 2025 | 12:06 PM
  #2  
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mikehks
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From: MIAMI
Originally Posted by kollpp
Hi,
been reading through the forum but didn’t find similar issue. My transmission start acting up, 1 and 2 gear really rough, looks like car doesn’t know when it should shift. Sometimes stuck on 3rd gear.

I don’t think is common issue of solenoids or valve body, replace solenoids 20k ago and was shifting fine after.

what is very odd is when I connect INPA to the car I’m not able to communicate to transmission module anymore like I did before.

maybe I have a bad connection or a bad module?

where should I look for wiring?
check the plugs on the front of the transmission seen a few get loose , right under the TB .
 
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