Sputter

[molsonmatt]

Whenever I accelerate quickly, not from stopped, usually going around 40 mph then accelerating quickly, the car seems to sputter. Almost as if the engine isn't getting enough gas? I can feel it. It's pretty noticeable. It seems to happen whether the engine downshifts or not. I have an automatic '08 335i. Any thoughts? Thanks.

[apskinner01]

you may want to have the dealer check your fuel system. my 2007 335i has a 120,000mi extended warranty on fuel pump and injectors. also 80,000mi on the turbos. The symptoms are typically more pronounced than yours. But cannot hurt to look into.

[325iPhil]

Your fault could be due to so many things (plugs, coils, injectors, carbon build-up on the inlet valves etc etc). Your first step is to get the ECU read for fault codes to give you a clue which might apply...

[White94RX]

Sounds like carbon build up, but could also be anything fuel or spark related.

[molsonmatt]

Thanks for the info.

[Martinw2579]

I just had the same issues in mine. Turned out it was the spark plugs that needed to be replaced and now drives just perfect.