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Trans. symbol E90 8HP70 with F80 M3/M4 DKG shifter

Posted: 29 Aug 2024, 20:23
by Seyran
Hi all.

I have done the 8HP70 conversion on my E90. Everything including the paddle shifters are working perfectly. I have the F8X M3/M4 DKG shifter in place of the old 6HP shifter.

The only issue is that the transmission symbol comes on when I turn on the ignition to start the car. That is because CAS is looking for the old shifter and I get the following codes:

A0B1 CAS: Input, Selector-Lever position, implausible
A0B6 CAS: Selector-lever interlock


Someone suggested that it could maybe be solved with some Tuner Pro setting. I did not have time to play with Tuner Pro yet.
Maybe there is another or easier way around this I don't know? Maybe reprogram the CAS to get rid of the transmission/gear symbol?
Any ideas anyone?

Re: Trans. symbol E90 8HP70 with F80 M3/M4 DKG shifter

Posted: 02 Sep 2024, 07:06
by Jar
Find selector lever lock position input on CAS and and connect AUX8 from TCU to it

Re: Trans. symbol E90 8HP70 with F80 M3/M4 DKG shifter

Posted: 03 Sep 2024, 14:40
by Seyran
Jar wrote: 02 Sep 2024, 07:06 Find selector lever lock position input on CAS and and connect AUX8 from TCU to it
That connection is already done. Otherwise the car would not start.

The engine is running. The car is running. EVERYTHING including the paddle shifters are perfectly working. NO issues at all whatsoever.

The ONLY problem is the gear symbol is still there. The error codes below cause the symbol. I cannot get rid of the gear symbol. Otherwise all is good.

A0B1 CAS: Input, Selector-Lever position, implausible
A0B6 CAS: Selector-lever interlock

Re: Trans. symbol E90 8HP70 with F80 M3/M4 DKG shifter

Posted: 17 Nov 2024, 17:16
by simtec
hello Mate

did you manage to solve this issue and how?

Re: Trans. symbol E90 8HP70 with F80 M3/M4 DKG shifter

Posted: 18 Nov 2024, 05:25
by Seyran
simtec wrote: 17 Nov 2024, 17:16 hello Mate

did you manage to solve this issue and how?
Hello. I was not able to solve it so far. You got the same issue?

Re: Trans. symbol E90 8HP70 with F80 M3/M4 DKG shifter

Posted: 18 Nov 2024, 06:56
by simtec
yes got same issue, but i am thinking of changing coding in CAS. will update you

Re: Trans. symbol E90 8HP70 with F80 M3/M4 DKG shifter

Posted: 18 Nov 2024, 07:15
by Seyran
simtec wrote: 18 Nov 2024, 06:56 yes got same issue, but i am thinking of changing coding in CAS. will update you
Please do so. I would love to see that symbol go away. It is annoying.

You got the same shifter by the way?

Re: Trans. symbol E90 8HP70 with F80 M3/M4 DKG shifter

Posted: 18 Nov 2024, 09:21
by simtec
am using FXX 10pin

Re: Trans. symbol E90 8HP70 with F80 M3/M4 DKG shifter

Posted: 18 Nov 2024, 11:04
by simtec
Tried coding to manual but still no success 😅

Re: Trans. symbol E90 8HP70 with F80 M3/M4 DKG shifter

Posted: 18 Nov 2024, 12:35
by Seyran
simtec wrote: 18 Nov 2024, 11:04 Tried coding to manual but still no success 😅
I thought I was having issues because I was using the F8X/F10 M5 DKG shifter (same 10-pin) but it looks like yours is the regular F-series shifter and you are having the same issue. Let's see what you come up with. Good luck!