[JC888]

My car has been Alpina flashed for about a year now. Today, on the way home, I received a trans malfunction error message on multiple occasions in normal D mode. The first occurrence happened why I was on i90 during rush hour. I was speeding up partial throttle as traffic became lighter, it initially slipped going back and forth from 4th to 5th and then it tripped an error and I was stuck in 4th (I assumed I was in limp mode). The error would then clear when I restarted the car. I was able to then again drive normal until it tries to shift into 5th again, then it slips and trips the error. I am able to duplicate this pretty much consistently since the first error message. As I was trying to duplicate this, it was more apparently that the slippage into 5th coincides with a quick metallic whirling, follow by the the error.

I was wondering:

1.) should I have the trans flashed back to stock?
2.) anyone have had this or similar issues?


Thanks in advance.

[wheen]

I wouldn't go into a dealership and ask them to look at any tranny problem with that alpina flash in there. I'd think that's asking for trouble.

[JC888]

Got it flashed back to stock from Alpina, also was able to pull a code:

4f8a - Ratio Monitoring gear shift 4-5.

This coincides with my issue so we shall see what the dealership says.

[bimmerdavid]

Any update from the dealership?

[JC888]

It's currently at the dealership right now, they couldn't get to it to but I left it with them anyway since I'll be out of town thru the weekend. Hopefully, I'll have an update tomorrow.