there were actually at least 2 separate Campaigns to change out Particulate Traps; my '85 300D had it done the first time @ ~66K miles to replace the original TO, and again just a couple of years ago at MBZs insistence to replace that TO with yet a different one. neither of these changes cost me anything; they were both paid for by MBZ.
i've heard that recently some of the larger indies have been getting calls from MBZ USA looking for more of the TOs; apparently there may not be any more available. cheers! e '85 300D > Does your 85 300SD have a trap-oxidizer? check for rust holes in it. Or > it could be plugged up. The stuff inside can come loose and damage the > turbo. I know someone who has a 85 300SD and it had the performance of a > 240D (very small rust holes in trap) But now it runs like it should with > a complete swap of the intake manifold, exhaust manifold,turbo and > header pipe from a 81 300SD. I think he said the new trap cost $800. He > also said there was some kind of recall but MB said his car already had > that done. Russ H