Bosch Blue Coil

[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

[mopar]

Did you ever come up with a part number?

[Jim LaGuardia]

Any Bosch coil for a 12v VW Beetle (3.6-4.0 ohms) will work just fine

[pinzinator]

Try Airheadparts.com, they have them.

[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

[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