I have had no cel light come up. So it works for my 1997 E300D and the car performs well. I do keep the OEM gasket around just in case if I need it.

I had to clean a lot of diesel "goo" from my intake manifold and crossover pipe and the air chambers. So it wasn't a worry for me to give this a try. I think this works for 96 and 97's, but not 98's and 99's. Perhaps other members can confirm one way or another.

Pabster