Going back to basics - was the problem over a prolonged period of time or during a short period? You have basic bolt-ons, so I don't think that's the issue. If this is a short-term issue, have you tried draining the tank and putting new gas in (I'm thinking bad gas or water in the fuel tank)?
__________________
Gabe
'13 335i M-Sport
Past - '06 330xi, '07 X3 3.0si, '09 328i, '12 X3 XDrive 35i
|