Just went to the local dealership to discuss the diagnosis of the P1700 code. I was told that the culprit could be the upshift delay valve but they made it sound that it was located on the side of the transmission and very hard to get to, as opposed to the the right rear of the engine area. We also talked about a possible clogged vacuum line or a leak and or a simple adjustment to the control pressure cable.

Now, I don't intend to attempt fixing the problem myself but I do want to be somewhat educated about this. I was not impressed with the attitude of the dealership as one of the mechanics and service advisors didn't seem enchanted with dealing with yet another P1700 code on a w202, and made it sound like it would be extremely labor intensive. With the $94/hour shop labor rate literally hanging over their heads, I had a feeling they were greasing the skids for a big bill. They even mentioned that it could be as much as $1000 because of all the "other things" they need to check.

As many have mentioned in the past, the performance and shifting of the car has not changed. I'm only concerned about this because at some point it will be up for state inspection, and they will not pass it with a "check engine" light on. I'm seeking the expertise of this group as I trust it more than this particular dealership. Any recommendations and advise would be greatly appreciated.

Bertrand