Bimmerfest - BMW Forums - View Single Post - E90 '09 328i added water to coolant
View Single Post
Old 01-16-2013, 05:41 PM
CarlsonTheFlyer's Avatar
CarlsonTheFlyer CarlsonTheFlyer is offline
Paraglide! Walk on air!
Location: Atlanta, GA USA
Join Date: May 2009
Posts: 1,260
Mein Auto: 2010 335i Coupe 6MT
Originally Posted by 328inewbie View Post
both was just a coincidence and there is a misfire.
I took it to auto zone, they ran diagnostics and they give code P0304 - Cylinder 4 misfire condition. Explanation is ignition system fault; probable cause is plugged or faulty fuel injector, vacuum leak, engine mechanical condition.
now what?
I was reading some other post and they suggest ignition coil replacement...I guess this would be the cheapest first try to resolve this issue.
any suggestions?
My money is on a faulty ignition coil. How many miles (or kilometers) are on the odometer?
Carlson The Flyer | BMW CCA # 423862
The problem with common sense is that it's not very common.

2010 335i, ZSP, ZPP, M-Sport, Le Mans Blue, 3 pedals of course!
Heated Seats | USB & iPod | Black Dakota Leather
Cobb AP Stage 1 Aggressive + | Cobb FMIC | BMW Performance Exhaust

Previous BMWs:
2001 330i ZSP ZPP 5-speed - sold, but not forgotten.
Reply With Quote