Sorry. Cant say that I have. I would try mbworld.org. They seem to have a fairly large R129 section, that seems to cover just about any kind of repair you could think of. I know that the IR units are fairly pricey, so I would definitely try to cover all of the bases in the dignoses department.

One other question. When you trun the key to lock/unlock, do the lights on the IR unit blink? If they do, then I am pretty sure it is workin. If not, you need a new IR unit, or to check the wiring.

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-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.