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Join Date: Dec 2013
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4FA0 SMG fault
I'll try and be as brief as possible without leaving anything important out. I have a 2006 e60 M5, and thanks to info from this forum as well as jcolley, I was able to get it fixed my 4f67 smg fault code last June by replacing the slave cylinder, clutch, and flywheel.
One thing I noticed after getting the car back was when coming to a stop a yellow cog popped up with the message "transmission fail safe, please take to nearest BMW yada yada yada" but would go away shortly after it appeared. And it stopped altogether for about 6 months until last week when it popped up again. Then yesterday the debacle began. I put the car in R, then when I put in 1 gear, the car jolted like Id just been rear ended, and I was unable to get the car back in neutral to do anything. I did get it towed to my house with special wheel dollies and when home
I put the computer on it and went through the test schedule from the fault codes 4FA0, 510e, and 510d. The 510e/d test failed the first time but I did it again and they passed and stated not to replace the PLCD sensor.
Then the 4FA0 test schedule wasted to do transmission and clutch adaptations. The transmission adaptation completed but the clutch did not, stating engagement position outside tolerance, as well as displaying a red cog clutch adaptation active symbol.
Any idea what this could be? The slave cylinder was just replaced a year ago, but I tried to bleed both the slave cylinder and the actuator block with DIS and the slave cylinder failed saying "minimum stroke of slave cylinder not reached" and the actuator block never finished after waiting 30 minutes. Any guidance is greatly appreciated. Sorry if I broke any rules with this post. Its my first one.