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Bosch Blue Coil
Posted: Mon Oct 18, 2010 8:08 am
by pcolette
Okay, so I know it's out there but I can't seem to find it.
Can someone please provide the part number for the correct Bosch Blue coil?
I found one made in Brazil with part number 9220081083 but there seem to be others available also.
Any help would be appreciated.
Thanks,
Paul
Re: Bosch Blue Coil
Posted: Wed May 25, 2011 10:44 pm
by mopar
Did you ever come up with a part number?
Re: Bosch Blue Coil
Posted: Wed May 25, 2011 11:22 pm
by Jim LaGuardia
Any Bosch coil for a 12v VW Beetle (3.6-4.0 ohms) will work just fine
Re: Bosch Blue Coil
Posted: Sat May 28, 2011 8:41 pm
by pinzinator
Try Airheadparts.com, they have them.
Re: Bosch Blue Coil
Posted: Mon Jun 20, 2011 8:24 am
by ExpeditionImports
Some tech on Bosch Blues.
http://www.ratwell.com/technical/BlueCoil.html
In general the feeling from most sport shops is that the Brazilian made Blue is the best of the options here in the states.
Cheers,
Scott
Re: Bosch Blue Coil
Posted: Wed Jun 22, 2011 3:14 pm
by andy
I'm probably displaying my ignorance here but, if it is a 24v system, why are we using a 12v coil? Is that the function of the "ballast resistor" to reduce the 24v to 12v? I'm asking because all of a sudden I'm getting the 4500 RPM light on the 712 and there is no change in engine sound, speed, or anything else that is noticeable except the very scarey and annoying light going off.
The problem has been discussed here before, and I know I can jumper the module on the middle two pins, but if the coil is going or the ballast resistor is bad, what have I accomplished?
How does one isolate this?
Cheers,
Andy