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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Uh oh. Here we go. Bye transmission?



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      05-15-2015, 12:04 PM   #1
TheYuriPanda
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Uh oh. Here we go. Bye transmission?

The lights turned red, hand pushing and holding the DTC button. Brake-boosting and bam the light turned green. I let off the brake and "clunk" transmission light came on and shifted itself to 6th gear, wouldn't downshift even in sport-manual. Pulled over and restarted my car and it was "okay". Never again have I launched from first gear again. But even from second gear launching, my car won't launch but bogs a lot. Any ideas? Still pulls very strong. Shifts are fast, but once in a while from 2 to 3rd gear, I hear a "CLUNK" and my car would jerk forward. Is my tranny done for?
Mods are: JB4, methanol(50/50), walbro 400, straight e85, bms e85 flash, catless downpipes, DCI, CP/BOV, michelin PSS, 225Front, 255Back. AWD AUTOTRANSMISSION.
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      05-15-2015, 12:12 PM   #2
Delta0311
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How often do you brake boost?
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      05-15-2015, 12:24 PM   #3
TheYuriPanda
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Quote:
Originally Posted by Delta0311
How often do you brake boost?
Bandimere, went there twice, about 6 times each.
Maybe 5times a week, mostly in second gear though.
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      05-15-2015, 12:26 PM   #4
enrita
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thats why i never do dig runs and brake boosting
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      05-15-2015, 12:28 PM   #5
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Yeah you might want to check this out... Not a good idea to launch xi to begin with..

http://www.n54tech.com/forums/showthread.php?t=20095


Got my fingers crossed your tanny is still good bro....
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