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mightbaal mightbaal is offline
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Default 2008 335xi transmission slips 1-2 sometimes.... - 05-04-2016, 05:55 PM

Well my car has almost 70k now and has the alpina B3 v2 flash and I mean I like power and am running a BEF and map 7 so 20 psi of boost... Some other small mods just did the alpina B3 v2 flash like a week ago and sometimes when it shifts WOT 1-2 it shifts hard sometimes it shifts smooth and sometimes it shifts smooth but rpms jump up right after the shift (slippage). No codes at all. Sometimes it seems like something hops when you downshift hard to like 2nd too. Idk I have a warranty good till 102k but I eould have to switch everything to stock and flash everything back. (VRSF chargepipe VRSF 7 inch FMIC DCI Jb4 Back end flash transmission flash and run it out of E50+ and fill with premium). How hard is a transmission swap on these XI's?


2008 335xi FBO JB4 BMS E85 Backend flash E60 Gas VRSF Chargepipe /w HKS BOV VRSF 7 inch FMIC DCI VRSF DOWNP xHP Stage 3 flashed
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PR3CI5N335i PR3CI5N335i is offline
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Default 05-04-2016, 06:22 PM

Stock **'s and you're running map 7?


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mightbaal mightbaal is offline
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Default 05-04-2016, 06:31 PM

Quote:
Originally Posted by PR3CI5N335i
Stock **'s and you're running map 7?
Yea..... XI's are a PITA and I still have a warranty... I know lots of back pressure....


2008 335xi FBO JB4 BMS E85 Backend flash E60 Gas VRSF Chargepipe /w HKS BOV VRSF 7 inch FMIC DCI VRSF DOWNP xHP Stage 3 flashed
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808AWD325xi 808AWD325xi is offline
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Default 05-04-2016, 08:08 PM

Quote:
Originally Posted by mightbaal
Well my car has almost 70k now and has the alpina B3 v2 flash and I mean I like power and am running a BEF and map 7 so 20 psi of boost... Some other small mods just did the alpina B3 v2 flash like a week ago and sometimes when it shifts WOT 1-2 it shifts hard sometimes it shifts smooth and sometimes it shifts smooth but rpms jump up right after the shift (slippage). No codes at all. Sometimes it seems like something hops when you downshift hard to like 2nd too. Idk I have a warranty good till 102k but I eould have to switch everything to stock and flash everything back. (VRSF chargepipe VRSF 7 inch FMIC DCI Jb4 Back end flash transmission flash and run it out of E50+ and fill with premium). How hard is a transmission swap on these XI's?

Which Alpina ZB number did you flash to your transmission? 7615835 or 7603537?


Alpina B3 Flash/BMS OCC/ER CP/ETS 5/HKS BOV/M3 Control Arms/OFT
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firemanjust1 firemanjust1 is offline
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Default 05-04-2016, 08:16 PM

You should be able to remove those mods in 2-3 hrs . I think that would be worth it if they will replace transmission under warranty. I would take it somewhere else for a third party to verify it is slipping then just take it to the dealer for warranty. If you know for a fact that you need a new transmission 6 hrs 3/3 install factory then remod would more than worth it imo.


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mightbaal mightbaal is offline
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Default 05-04-2016, 09:42 PM

Quote:
Originally Posted by firemanjust1
You should be able to remove those mods in 2-3 hrs . I think that would be worth it if they will replace transmission under warranty. I would take it somewhere else for a third party to verify it is slipping then just take it to the dealer for warranty. If you know for a fact that you need a new transmission 6 hrs 3/3 install factory then remod would more than worth it imo.
Problem is there is no way the transmission would slip under stock power. Probably going to have to wait till it gets bad before I can take it in.


2008 335xi FBO JB4 BMS E85 Backend flash E60 Gas VRSF Chargepipe /w HKS BOV VRSF 7 inch FMIC DCI VRSF DOWNP xHP Stage 3 flashed
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