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Message: <blockquote data-quote="Ade" data-source="post: 114944" data-attributes="member: 95">Dear guys,Ignition coil failure is definitely very common N42 2.0 Valvetronic problem. However, I believe cars from late 2003 onwards with the N46 2.0 Valvetronic should not have the problem as BMW has stopped ordering from the old ignition coil vendor. Please have your ignition coil checked as to the brand of it. If it reads BOSCH, it should be fine. Otherwise, you will experience coil failure sometime in your car's life. Moreover, make sure the coil is all the way down fitted properly. Sometimes, fitment could be a problem.I got mine changed all four. You can actually do it yourself. I did it on my own....however, RM1100 for changing one coil is crazy! The price of the coil is RM180 (if i remember correctly) for a piece from AB. However, slight vibrations still persist even after you changed your coil. These could be attributed to other problems such as engine mounting, thickening of the engine oil (u can check this by touching the oils with your finger to see if its gooey), O2 sensor kaput, fuel regulator, etc etc.</blockquote>