99 E300 conductor plate?
 

So I just hauled a very clean 2 owner 99 E300 that was sold as needing a transmission. It is in limp mode so I got it home, it had codes 056, 110, 146, 147, 151 which looks like conductor plate type codes to me involving gear not obtained, transmission slipping etc. So I cleared the codes and also checked the fluid. No fluid was showing on the dipstick tool. I ended up adding about 2-3 qts and took it out. It seemed to shift fine but it does not seem to be going into 5th. I did get it to limp again which was solved by restarting the car, which is what my other 210 diesel was doing till it went into full time limp mode. Anyway, does this sound like conductor plate to you? Will that cause it to not go into 5th? Next step will be to get under car and look for leaks, then drop the pan and see what it looks like.

Guess nobody has dealt with 722.6 issues

Conductor plate is easy to change on 722.6 and can be done by mere mortals. As opposed to the 722.9 that requires a dealer.

I would go ahead and drop the pan and do a fluid/filter change. Be sure you're using the correct fluid, it is not ATF. Either the MB Spec fluid or the Pentosin equivalent.

You will need the Dipstick Tool and the red anti tamper clip to seal it back up when you're done. You are supposed to measure the transmission temperature with Star Diagnosis but an IR thermometer on the pan will do just as well.

Also do the connector plug while you're in there.

Posting detailed descriptions of the codes involved would help. Some codes are manufacturer defined so getting a code list for the actual car in question is a must.

No one has every code memorized and posting detailed descriptions shows the person is taking an active role in learning rather than just Googeling it for a " change this part" fix.

Some codes can be the result of a failure covered by an earlier code or could be left over from past corrected failures.

Factory manuals have detailed diagnostic procedures for each code. this is the best place to start.

Here is a listing of the DTCs. I assume the OP has an MB tool if they are reading the 3-digit codes and not P07xx codes. Unless I'm wrong and one of the 3rd party scanners can pull the legacy 3 digit fault codes from a W210.

STAR TekInfo

The codes referenced do seem to lead to a conductor plate speed sensor issue which is very common.

If OP is dropping the pan then might as well do a conductor plate and connector plug and fill with fresh fluid. Good chance this will solve the problem.

I have changed several conductor plates it has just been a while and I have not had issues where it would shift but not shift into 5th, then later go into limp. My first plan is to pull the trans computer and see if there is fluid in it. If there is, I will clean it up and replace the plug connector first, clear codes again then see what it does. I also have a 98 E300 that just so happens to need a conductor plate as well. And yes, I do have the SDS/Xentry system. It is nearly impossible to work on anything W210 and later without it.