[MadMen]

This may help someone diagnose their problem

A few days ago I was driving when the car seemed to bogg down and begin running really poorly. Once home I realized how badly the whole ca was shaking. I first thought of the HPFP which is a common problem amount the 335i.

It was definitely a problem in the fuel system as the engine almost seemed like it was shocking. Once at the BMW Service department they had a look and found a faulty ignition coil. This was a huge relief compared to the vastly expensive HPFP

They told me the repair should cost around $300

I was most worried about the car having to sit in the shop right as my Vishnu Procede chip was about to arrive!

Hope this helps someone out!

[badsector]

Sure helped me. I hope it's my issue as well.

http://www.e90post.com/forums/showthread.php?t=707140

[djjasper]

Coil replacement is a DIY!