Issues with auto/manual transmission......This is weird

cstmx_ryder · 10-02-2013, 10:14 AM

Just this morning when I was driving to work, I put the car (automatic) in manual mode as I always do, but this time, the light on the gear box didn't switch to the +/- when I put the car in manual and the light didn't even come on.

But what's more weird is that when I was using the manual mode, during a stop light, or low cruising speeds, the transmission AUTOMATICALLY switched over to 'D' mode. It did this every time!!

Has anyone encountered this on their 335 auto?

TIA

135Pats · 10-02-2013, 10:17 AM

The wiring for Steptronic “modes” can fray over time, could just be that yours is messed up. Checking into that seems to fix 90% of the steptronic problems that crop up.

cstmx_ryder · 10-02-2013, 10:26 AM

Quote:

Originally Posted by 135Pats

The wiring for Steptronic “modes” can fray over time, could just be that yours is messed up. Checking into that seems to fix 90% of the steptronic problems that crop up.

Ok thanks, that's what I was hoping for, something easy to fix. I did have to get into the gear box to install the V1 or the boost gauge, can't remember which.

_shim · 10-02-2013, 01:37 PM

http://www.e90post.com/forums/showthread.php?t=842645

this.

cstmx_ryder · 10-02-2013, 01:48 PM

Quote:

Originally Posted by _shim

http://www.e90post.com/forums/showthread.php?t=842645

this.

Thanks!!

10-02-2013, 10:14 AM	#1
cstmx_ryder Colonel 164 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	Issues with auto/manual transmission......This is weird Just this morning when I was driving to work, I put the car (automatic) in manual mode as I always do, but this time, the light on the gear box didn't switch to the +/- when I put the car in manual and the light didn't even come on. But what's more weird is that when I was using the manual mode, during a stop light, or low cruising speeds, the transmission AUTOMATICALLY switched over to 'D' mode. It did this every time!! Has anyone encountered this on their 335 auto? TIA __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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10-02-2013, 10:17 AM	#2
135Pats Major General 456 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	The wiring for Steptronic “modes” can fray over time, could just be that yours is messed up. Checking into that seems to fix 90% of the steptronic problems that crop up. __________________ E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP F30 N55 XDrive EBII
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10-02-2013, 01:37 PM	#4
_shim Major General 147 Rep 6,380 Posts Drives: an e90 Join Date: Sep 2010 Location: 718 iTrader: (5)	http://www.e90post.com/forums/showthread.php?t=842645 this. __________________ •◡ •
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