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Old 01-27-2019, 07:45 PM
Bimmerx5e53 Bimmerx5e53 is offline
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Join Date: Jan 2019
Posts: 27
Mein Auto:
You can replace the fluid see if that helps. By TSU do you mean TCM? If you did replace the TCM then I would code it. Also scan for codes, or even leaks as you may be low on transmission fluid. Maybe a solenoid is bad. I would definitely first scan and check for codes first.

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