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Old 08-14-2019, 07:51 PM
scottalexander scottalexander is offline
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Location: PA
 
Join Date: Oct 2017
Posts: 423
Mein Auto: 2010 bmw 528i
The vehicle has 200,000 miles on it now think about how often the transmission gear oil has been changed. Maybe once? Maybe never?

There is an old mechanics adage. Do the obvious first, do the easiest second, do the least expensive third.

Change the gear oil and see how black it is.

Drive it for a short time.

Change it again.

If the transmission is acting better, your on the right track.

If the transmission shifting didn't get better, at 200,000 miles:

- Pull out the mechatronic and replace the bridge seal and sleeve seals (easy and inexpensive). You might as well do it, because there's a good probability at 200k it needs it anyway.

If the transmission is acting better, your on the right track.
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