Car was not running properly

Many thanks

Hi Volker ,As my Bosch coil is new i was wondering what type of ballast resistor model would i need to make the coil work as the coil i should have the 0221119021.? If that makes sense ? If so is it just one cable from the resistor ?and would it connect onto the + of the coil.? Thank you for your time ,much appreciated. Regards Nigel.

Hi Nigel,

please have a look your self at Bosch equipment list:

www.bosch-classic.com/de/de/produkte/fah...rResultCount=10%3D40

Interesting that they say you need a power resistor on that coil 0221119021 too if you have transistor module. Pertronix is one like that. So one should be able to read that green label on coil. Because they do not tell the reistor value.

You can also check BMW 1500 - 2002 there to check which resistor they use on your coil.

 

What I remember now:

A coil is built for a limited number of sparks per second. A 6-cyl engine needs more sparks than 4-cyl engines. Maybe that is the difference.

Hi Volker I'm getting confused .easy at my age ha ha.Ive just emailed Bosch Classic to see what they say.but forgot to mention the Petronix but the coil you said is the correct version.which seems to cover the whole E 3 range maybe is ok as the 3.3 lia cars run transisderised ignition.Nigel

Hi Volker you are correct the Bosch coil is for 4cylinder up to 2 litre engines.Bosch Classic confirmed and the correct coil is the one you mentioned and needs a ballast Resistor of 0.9 ohmn They did not know if this set up would be ok with my Petronix.You think it should be ok ? Am I correct in thinking that a cable should be added to the 2 ballist connectors and then each end of the cable go to Plus and minus on the coil ? Regards Nigel.