They'll be for a 1991 190e 2.3. I looked up the application on Beru's website and came up with that part number. I've found a couple of VW sites selling Beru plugs, but not that part number. Is there another part number I could/should use? The reason that I want these plugs is that the car appears to have a lean misfire at idle and my smog test is comming up next month. Everything else on the ignition and fuel system seems ok, except maybe the old fuel distributor is partially to blame. I'd rather try these plugs first.