I have an 87 300SDL (right, the 6-cylinder) which is equipped with the Trap Oxidizer, rather than a Cat. If the Trap Oxidizer falls apart internally, it looks like the Turbo gets the broken parts right in the inlet. I understand that the Trap Oxidizer is warranted by MBZ for life. How does one tell if it isn't functioning any more? I get some black smoke under accelleration, but not huge amounts.

Tom Kanis
87300SDL 107K