Ok. So here's my next project.
I have a 1998 CL500 with about 200k miles on the original transmission.
The previous owner "forgot to mention" that the tranny was quitting and i inherited a surprise on my way back.

First symptoms:
A few hard shifts 2-3 gear and it went into limp mode.
Stuck in 3rd gear. CEL on with generic p0700
(TCU malfunction)
Also Trouble codes for speed sensor.

Opened the coffin box and discovered oil.
Replaced the harness connector + TCU
Dried the connectors and everything was great for the next 200 miles.

Second symptoms:
2 more hard shifts 2-3 and transmission gets stuck in 3rd.
No check engine light until it goes in second gear limp mode.
CEL on with p0715. Speed sensor again.

This is what i just ordered and plan to replace.
1 Conductor Plate

2 Pressure regulator spring 2-3 gear

3 Sonnax Mercedes 722.6 Overlap valve sleeve kit.

4 Fluid Fuchs titan atf 3353 (They make the fluid for Mercedes. Too much controversy with other oils so i'll stick to what's been tested)

5 Pan Gasket and fluid Filter

6 Dipstick

7 Washer for the drain nut

8 Lock Pin for the filler tube

9. Also PLEASE don't forget about the harness connector. (I replaced mine a few days ago and got rid of all the oil that leaked into the TCU)



Also plan to order carsoft Today to reset the codes. ( Or maybe C3 or C4 ?)

I doubt i'll get all my parts before the week ends so plan to do it next weekend.

What did i miss ?

P.S: I'm ordering 2-3 pieces of each. So if anyone wants a "kit" to refresh the 722.6 - PM me for details.