Defective ignition coils common?

Dr. D · 11-08-2013, 05:07 PM

A few days ago I was at a stop light. When I started out, something was a bit off. When I shifted into 2nd, something was way off; engine stumbling and it wouldn't get over 2,200 RPM. I pulled off the road and shut it down. Start it up and everything is fine. Oh, when the engine was stumbling the 'service engine soon' idiot light came on.

The next day I took the car to the dealership. Turned out to be a defective #6 ignition coil. They replaced that and the spark plug since it was fouled from the misfires. They also replaced the rear brake pads since they were below spec. All under warranty; that was nice.

OK, was this just an odd event? Do you see this occasionally, or more often? BTW, the car has just under 32,000 miles on it.

Dackelone · 11-08-2013, 05:09 PM

Yes. The spark plugs, coils and injectors do go bad in our cars. Spark plugs should be replaced every 45K miles. Coils are probably only good for ~80K miles.

11-08-2013, 05:07 PM	#1
Dr. D Enlisted Member 4 Rep 46 Posts Drives: '10 135i Join Date: Dec 2012 Location: Reston, VA iTrader: (0)	Defective ignition coils common? A few days ago I was at a stop light. When I started out, something was a bit off. When I shifted into 2nd, something was way off; engine stumbling and it wouldn't get over 2,200 RPM. I pulled off the road and shut it down. Start it up and everything is fine. Oh, when the engine was stumbling the 'service engine soon' idiot light came on. The next day I took the car to the dealership. Turned out to be a defective #6 ignition coil. They replaced that and the spark plug since it was fouled from the misfires. They also replaced the rear brake pads since they were below spec. All under warranty; that was nice. OK, was this just an odd event? Do you see this occasionally, or more often? BTW, the car has just under 32,000 miles on it. __________________ Drive: '10 135i Ride: '13 BMW F800GT
	Appreciate 0 Tweet Quote

11-08-2013, 05:09 PM	#2
Dackelone European Editor 10526 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	Yes. The spark plugs, coils and injectors do go bad in our cars. Spark plugs should be replaced every 45K miles. Coils are probably only good for ~80K miles. __________________ Dackel's European Delivery Museum Guide
	Appreciate 0 Quote

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search