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      09-29-2022, 09:37 AM   #30
Helmsman
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Drives: 2011 AW E90 M3 ZCP
Join Date: Mar 2014
Location: Stockholm, Sweden

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Quote:
Originally Posted by spammysammich View Post
The o-ring sandwiched between the thermostat and the transmission body. Probably gone flat over time. I doubt it was swapped out at the last full transmission service at 88k miles.
Ah, got it. Had my Tstat replaced together with fluid and filters some year ago, and yes believe I had some weep there as well. Wouldn't worry if tiny.
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