My skepticism of the Bay Area MB dealers runs really high.
MB of SF is despicable, in my experience.
RAB Motors is OK, but just.....they seem to find wildly extravagant repairs needed.
I have heard reports that Stead's in Walnut Creek is really bad, and the dealer in Pleasanton is even worse.
Aack K. (Boardmonger) doesn't like Smythe in San Jose and I respect and trus his opinion.
That still leaves Oakland, Fremont, Redwood City and a few more, but I would be careful of them, just buy parts if I had to
I have heard Karl's in Novato is good, and I have used Sal's Autohaus in SF,and they were OK. I spent a LOT of $$$$ over the years at Pete's Independent on Pacific off Van Ness, but they are a white glove shop and pretty expensive too, all right but barely. They will give you a ride to work though.
I used the Independent MB shop at 40th and telegraph in Oakland a couple of times, and they were pretty much all right, but no bargain either.
7 or 8 years in the SF area with a Benz and I felt like Diogenes with his lamp looking for an honest and really good place, never found one.
Maybe one is there, but the dealers stink generally around there. I hope your luck is better than mine was
Just curious, do you have a good shop you found?
I think at 234k your flex discs could be bad, though I can't see it, I had mine done at about 110k, it is a safety issue to keep them in good shape, a failure at speed would be a catastrophe