AT car shift on its own in M mode

JonnySorani · 06-27-2020, 12:18 PM

I recently noticed that when my car is in sport/M mode and I am using the paddle shifters my car will shift on its own when it hits redline. Is this normal for an 08 335i. I have MHD tune in case that might be the cause.

ryan stewart · 06-27-2020, 01:53 PM

Yeah, M/S still won't let you blow it up. It just waits to shift

Smgs1992 · 06-27-2020, 04:23 PM

I believe with a XHP tune you can disable the auto shift mode and kickdown. As well as improving shift speed and power the trans can handle

06-27-2020, 12:18 PM	#1
JonnySorani New Member 1 Rep 10 Posts Drives: 2008 BMW 335i FBO + Meth Join Date: Jun 2020 Location: Houston iTrader: (0)	AT car shift on its own in M mode I recently noticed that when my car is in sport/M mode and I am using the paddle shifters my car will shift on its own when it hits redline. Is this normal for an 08 335i. I have MHD tune in case that might be the cause.
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06-27-2020, 01:53 PM	#2
ryan stewart Major 2197 Rep 1,322 Posts Drives: 2008 328it Join Date: Aug 2012 Location: Atlanta, GA iTrader: (0)	Yeah, M/S still won't let you blow it up. It just waits to shift
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06-27-2020, 04:23 PM	#3
Smgs1992 Captain 720 Rep 946 Posts Drives: 2007 bmw 335i Join Date: Apr 2020 Location: Cincinnati ohio iTrader: (0)	I believe with a XHP tune you can disable the auto shift mode and kickdown. As well as improving shift speed and power the trans can handle __________________ 07 E92 335i 6MT, MMP inlets, DCI, VRSF 7.5 competition intercooler, VRSF catless downpipes, VRSF chargepipe, 335is clutch, Vader Solutions stage 2 LPFP, MHD stage 2+, Hawk HPS 5.0 pads, R1 Concepts drilled slotted rotors, TSW Nurburgring 19x8 19x9.5
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