Bosch 0 221 504 410 Coil pack info?

All Megasquirt 1 support questions. See also the Documentation

Moderators: jsmcortina, muythaibxr

Post Reply
Jon k
Super MS/Extra'er
Posts: 1256
Joined: Fri Oct 14, 2005 10:28 am

Bosch 0 221 504 410 Coil pack info?

Post by Jon k »

These are the coils on my BMW inline 6 motor (M50) with 6 coil on plug setup - trying to figure out if they are dwell control etc and what millisec they require?

Bosch part number again is 0 221 504 410 with "1 748 394" below it.

I also have other coils made by "Zundspule" which I guess would be the same as Bosch settings because they're a substitute (from OEM, some cars had bosch, some had Zundspule)
Jon k
Super MS/Extra'er
Posts: 1256
Joined: Fri Oct 14, 2005 10:28 am

Re: Bosch 0 221 504 410 Coil pack info?

Post by Jon k »

No one?

I found this chart which has little scopes of the coils...

Image

Any way of telling dwell based on that?

Also, do we want the idling dwell? If so I can probably get a stock ECU dwell map.
fraatti
Helpful MS/Extra'er
Posts: 62
Joined: Thu Oct 21, 2004 2:53 pm
Location: Finland

Post by fraatti »

I need also same information to coil used in 328i -95. BMW part number is 12 13 1 748 018. It's either you or mine coil that is used nearly all bmw engines. Where do you find such nice repair manual picture?

Are you sure your coils don't build too much heat when used wasted spark? I think true cop would be nice.
Jon k
Super MS/Extra'er
Posts: 1256
Joined: Fri Oct 14, 2005 10:28 am

Post by Jon k »

bump - any help pros?
Post Reply