Originally Posted by tofu-
on the flip side, i HAVE read that initial hpfp failure can cause decreased performance. if it is something that happens gradually over time, the driver may not notice it until one of the more abrupt symptoms occur.
i'm on the other side of the fence. if you have the time, get it done!
lower gas mileage and slower 0-60 etc
but the above is also true for their latest update too.
I wish there was some way easily for us to show bmw the sold city/highway mpg numbers dont match what we're getting with the latest software... I know this is something bmw doesnt want to touch.