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06-19-2010, 10:01 AM | #1 |
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Shortage of M-DCT transmission fluid?
I have a 2011 M3 that will need the 1200 mile break-in service soon.
When I did my break-in service for my last M3 (a 2008 M3), they told me that there was a critical "shortage" of the special transmission fluid for the M-DCT, and so there was a service bulletin saying that the transmission fluid should not be changed, even though the user's manual clearly stated that it should. Has anyone had their M3 break-in service recently, and are they including the transmission fluid change these days? Whoops: I just realized that I posted this on the E93 3-series forum instead of the M3 forum. Please consider this same question if any of you out there have a 335is with a DCT in for the 1200 mile break-in (if there is one). Last edited by Go Autobahn; 06-19-2010 at 10:11 AM.. |
06-19-2010, 10:13 AM | #2 |
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I'm almost certain there is no 1200 mile service for the 335is, so definitely post this on the M3 side.
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06-19-2010, 11:06 AM | #3 | |
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06-22-2010, 12:01 PM | #4 |
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Just wondering where you heard that from? Not to be a d!ck, but before I would go and flush and fill my transmission, I'd like to know a bit more before I potentially f-up my transmission.
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06-22-2010, 02:15 PM | #5 |
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M-DCT equipped cars should not have their fluid changed at the 1,200 mile service. Per BMW it is a life time fill (whether you buy that or not is a different issue).
Manual 6-spd cars should have their fluid changed at the 1,200 mile service. I believe that early M3s had bad information in the manual. Some dealers changed the M-DCT fluid and destroyed the transmission because they used regular oil, not the M-DCT's hydraulic fluid. The "shortage" was due to the fact that this fluid was not stocked because its use was only rarely anticipated. BMW ended up implemented a process that required a dealer to open a PuMA case in order to get the fluid. This way BMW could ascertain if the dealer had screwed up and attempted a change on an M-DCT equipped car. This is all documented in various bulletins.
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12-01-2010, 05:19 AM | #6 |
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I'm sorry to hear about your frightening experience. I'm suspecting that it isn't the engine oil that is your problem, but the transmission fluid. I wonder if the light on the dash differentiates between the two. Last year, they had a batch of bad transmission fluid for the DCT's that made it into a service bulletin to be replaced, but your car is too new for that.
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