Am at wits end. I got the dreaded 4F85 code and transmission fault on my 2009 535ix. I decided to get a used Mechatronics unit from a 2009 528ix donor car from the salvage yard. I was able to replace the Mechatronics unit,changed the transmission fluid and all the Sleeve Seals. After that i tried to code the Mechatronics but am having issues. When i run INPA the unit from the salvage yard has a different number-7591971 but when i run UIF on INPA the number is different-7601460(i think this is the old unit that i removed from the car). How can i code the new(used) unit to the car?. I appreciate it. Thank you.
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Last edited by mimi78; 05-25-2020 at 12:04 PM.
Ass far as I know you’re gonna have to do that with tool32.
">'85 Mlite E30, '98 E36, 1998 528i, 5 spd manual, black on black, sold in 2012 and still going past 350Kkms, now MYSTIC Blue 2004 545i, 6 spd Steptr., Adaptive steering and Xenons, Anti dazzle mirrors. Aux+Belt-Chime+Dig speedo+iDrive discl. 2007 TCU+BT Coded+Sure BT Board
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