Date registered: Mar 2005
Vehicle: '01-E320 & 02-ST2
Location: John 15:18-19
Mentioned: 0 Post(s)
Quoted: 35 Post(s)
First, please click user cp and add the vehicle and location information to the profile, that's useful.
Second, the general forum is for general topics about mercedes; specific chassis have their own forum, in this case the W210 forum in the sedans section.
If you navigate to that forum you'll find a bunch of stickies at the top, one of which has drivetrain info in it and in there is an excellent 722.6xx FAQ that is about this transmission.
That said, it seems most likely that either liquid has been spilled in the center console, the adapter/spacer/bushing has failed and allowed ATF to flood the TCM, or the conductor plate has failed. All of these are discussed in the FAQ.
If you're not doing the work, you need to find a better shop. A good indie shop or a good trans shop that works on MBs would be ideal.
And no, running diagnostics wouldn't have this effect. It's just plugging a computer into the diag port and checking temps, pressures, codes, etc. That they couldn't figure anything out simply means they don't know the transmission and are a shop to be avoided since it's a waste of money.
Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery. (Winston Churchill)