Quote:
Originally Posted by hachicho
I found what was the problem. It is the spark plugs I had the one prone head on it but it suppose to be the three prone head. I have to change them on Monday and will see that will happen.
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I would also reccomend you only to use/buy spark plugs bought from a BMW dealer. Some people have had issues with aftermarket Bosch plugs with the same specs as the BMW-Bosch plugs. I don't know why that is... but to be on the safe side I would just buy your replacement plugs from a BMW dealer.
Maybe my DIY might help you out...
135i Spark Plug replacement DIY...
http://www.1addicts.com/forums/showthread.php?t=602804