hello guys.

since i have cpc tuned on my e63 (stage2 ecu) the gearbox is slipping a lot in 3 4 and 5 gears. (exact same vibrations when tyres are slipping)
we've tried low torque on ecu : slipping too
we've tried cpc torque on ecu : slipping too

we have tried with stock ecu : there isnt any slipping at all. problem is only with stage 1 or stage 2 tune with low or high boost

someone saw this problem ??

i don't understand whats happening... i hope there is no material issue

 

I was wondering if/when we would see issues like this. Stage 2 is a lot of power. Do you drive the car hard all the time?

 

Who did your CPC??
This must be the first one because I've never heard of a German tuned CPC do this? Would you be willing to share who you got this CPC from or tuned from?

 

Yeah exactly, there are two types of CPC tunes out there currently. Most tuners don't really know the proper way of doing it (entirely new CPC unit tuned, switched out with the stock CPC unit).
The problem could also be in your ECU tune, who is the tuner?

 

yep that shouldn't be happening somethings been done incorrect! as mentioned who done it