Originally Posted by kred
I've always wondered why the 335 has hpfp while others with TT like the X5/6M for example don't have that problem from what I know. I'm just curious and if there is there an explanation for this?
i'm not really sure why it does it, maybe the gasoline people are using. I go to shells or chevron because their v-power doesn't have ethanol in it and I've had no problems so far. i've also heard it's pretty common in the 07/08. this has happened to my friend's car and they had the unit replaced under warranty.