Make sure he has a "scanner" that can read the "Actual Values" as well as the transmission "Adaptation Data".

The actual values will tell him, among other things, if the trans ECU know the position of the shifter. The adaptation data will tell him if one of the shift members (inside the transmission) is to blame.

Thanks, I'll ask him the above tomorrow and report back.

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1999 ML 430

Here is what the shop owner just emailed me. I've been updating him all day with all the suggestions here.

"Yes I have the same dealer Mercedes scanner as the Mercedes dealer has. I checked out all this. I dont see any problem at this time its working perfectly fine. I have 6 month warranty on your gear shifter. I believe you can drive your car without any problem. please do call me or stop by to pick up your car. Thanks."

If I tell him to put a brand new shifter in the truck, not a used part like he did previously, would that most likely solve the problem? To say I'm irritated with his response is an understatement. I don't see why he would think the truck is ok and that it won't happen again.

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1999 ML 430

I just re-read this... If it's a shift member inside the transmission, is that a huge deal to repair? It sounds like it.

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1999 ML 430

Your guy said everything looks good, so apparently that's not your problem.

If it were, it would require a tear-down and inspection.

That's what I needed to know, thank you. If that were the problem it would remain with a new shifter, correct?

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1999 ML 430