In Reply to: sparck plugs posted by Alex on January 26, 2000 at 14:40:41:
I had just put Bosch Platinum plugs in to pass emissions. When I took the car to my independent BMW mechanic, two weeks later, he yanked the platinums and put in OEM plugs. He's heard of problems with the plus-4's and prefers to use OEM plugs. I trust this guy and so do alot of others.
I know it's not the same car, YMMV, but this guy knows what he's talking about.