Hello and welcome,
Did you scan the computer using an OBDII scanner? It will be helpful to get the engine code.
Thank you. The car is due for service. I have asked to get the plugs changed. If it don't work I will return to you. May be they can check the coils as well. I am using 95 Shell Premium only, sometimes 99 to clean the engine due to short trips.
Ok, good you're using premium fuel. This is what BMW recommended.
The BMW shop checked the code from the car computer . I did not get the code. The code was not conclusive they said.
Ask them to read the code? If the code is not coming up. Ask them to hook up a snap-on data logger computer to check which coil is weak.
Ok good, please update me the progress later.