Ignition Coil, OEM Bosch - E90 325i/330i, E60 525i/530i, Z4 3.0i/3.0si
Replace your old and failing coils to optimize the health and performance of your engine
Ignition coils play a vital role in the performance, efficiency, and health of your BMW N52 engine (2006 model year). Each cylinder gets its own ignition coil for optimum efficiency (no more spark plug wires) and it fires at precisely the right time to ensure a complete burn of the fuel/air mixture. A bad coil will result in misfires, rough running, stumbling, poor fuel economy, and other engine issues. Also, unburnt fuel will also damage catalytic converters and O2 sensors. Diagnosis of misfires and rough running almost always starts with the ignition coils. You can usually isolate faulty coils by moving them to different cylinder banks. However, we always recommend replacing coils in complete sets to eliminate the damage to computers, control modules, and other electrical systems from a voltage spike.
Not for cars after the 2006 model year. This ignition coil is for the early N52 which came in body models for the 2006 model year. This coil is not for cars later than 2006, and not for cars before the 2006 model year, either.
Price listed is per coil. This part number includes the rubber connector boot. This coil is produced by Bosch, the original supplier to BMW for this ignition coil and many other ignition and others parts for your car. It has a two year warranty. This ignition coil has been revised by BMW several times and is sometimes referenced by multiple different part numbers. This coil is the latest version from and may be used to replace an of the following ignition coil part numbers: 12137548553, 12137523345 and Bosch #0221504465.
E90 / E91 / E92 / E93 (06-13) > 325i
E90 / E91 / E92 / E93 (06-13) > 325xi
E90 / E91 / E92 / E93 (06-13) > 330i
E90 / E91 / E92 / E93 (06-13) > 330xi
E60 / E61 (04-10) > 525i N52 (2006-2007)
E60 / E61 (04-10) > 525xi N52 (2006-2007)
E60 / E61 (04-10) > 530i N52 (2006-2007)
E60 / E61 (04-10) > 530xi N52 (2006-2007)
E85 / E86 Z4 (03-08) > Z4 3.0i N52
E85 / E86 Z4 (03-08) > Z4 3.0si N52