Q: Misfire, loss of power, CEL comes on... Replacing ignition coils did not fix

asked by on

My BMW is running very rough, misfires often, idles rough, extreme loss of power, acceleration, etc. Took to the "BMW Repair Shop" and had the walnut blast done, but opted to replace the spark plugs (Bosch plugs) and ignition coils myself. New Coil Stamp V 8647689-01 0 221504 470 16-07-05 F 01033 BOSCH ALL CEM 01

Old Coil Stamp V 7562744 80-02 0 221504 470 06-09-13 D 04860 BOSCH ALL CEM 01

The old coil has a different bottom end.

Did I use the right coils? Could the be something else wrong?

My car has 91500 miles.
My car has an automatic transmission.

Hello. The numbers you have provided did not yield any results through my search. If the part numbers are different, and the ends are physically different, then they may very well be different coils or it may just be an updated design. I would verify with a parts specialist or BMW dealership if the parts are compatible or not. Also, keep in mind that it may be possible that the coil packs are not the source of the issue. If the Check Engine Light is on I would scan the trouble codes as they may help shed some light on if the coils are the issue or not. A certified professional from YourMechanic can come to your car’s location to diagnose the Check Engine Light and loss of power in order to make the correct repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Misfire, loss of power, CEL comes on... Replacing ignition coils did not fix

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Replaced coil 3 per code, code still appears, auto purrs in the morning but feels like it starts sucking air after driving 30min

Codes generally cannot be used to condemn specific parts. To illustrate, you could have a circumstance where the wiring to a coil is simply faulty and the fault in the wiring causes the part (in this case, possibly a coil)...

Q: Car shifts erratically and hesitates when accelerating

Hello. When the Check Engine Light comes on in your car, it will automatically turn off other systems like the traction control. Depending on why the light is on, it may also cause shifting problems. I would typically start with...

Q: Loud roaring but turbo cannot be heard, no changes in horsepower

If you are not hearing your turbocharger while accelerating but the vehicle still accelerates as normal, I would not consider this an issue to worry about. However, if you don't hear the turbo and you feel that your vehicle is...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...