Originally Posted by Arthur Dalton

Those reg are expensive, so many guys [ if the car is aged and not worthy] just put a toggle sw on that blu wire to ground and run high fan only...at least you have something to heat up with.


I had a friend bring me his older Benz one day , and when I jumped in, there was a household light switch, metal box and all, mounted to the dash.

I said. " Regulator gone, Huh ???'
He said , " Yeah...How did you know that ???????????? "

I said. " Well ..... I didn't see any 4 foot florecents hanging from the head-liner "