722.9 7GTRONIC Fluid Change
Pan: 221 270 09 12
Gasket: 220 271 01 80
Overflow Pipe: 251 271 00 97
The parts people would have given me the revised part numbers. Something just doesn't make sense on this as both the old and new pan are still available on most online sites.

A 2006 production car will have the original pan which requires update to a 09 12 pan. Even 2007 W203 production had the old original pan.
Last edited by Glyn M Ruck; Jun 24, 2013 at 12:40 PM.

I have all the other part numbers but the correct torque converter drain plug and sealing ring. If someone has those that would be appreciated.
The Best of Mercedes & AMG

10 A 220 270 06 12 .SUMP
Replaced_By: A 221 270 09 12
+001 A 251 271 00 97 [110], [111]
001
10 A 221 270 09 12 .SUMP
Replaced_By: A 221 270 12 12
+001 A 220 271 03 80 [112], [113], [111]
001
If it was me I would just fit the 09 12 pan & white tube with the improved gasket. Literally thousands of 722.9's are running with the greater capacity 09 12 pan with no issues. I imagine this is a matter of parts rationalisation & making more money. I can find no DTB that supercedes update to the 09 12 pan so I don't believe the 09 12 was ever an issue.
Your choice.
Good luck!


15 N 007603 3010100 .SEALING RING
CONVERTER 001
20 A 000 990 62 17 .SCREW PLUG
WITH SEAL RING
M8X1 001
20 N 000000 0000884 .SCREW PLUG
CONVERTER
M10X1 001
15 N 007603 3010100 .SEALING RING
CONVERTER 001
20 A 000 990 62 17 .SCREW PLUG
WITH SEAL RING
M8X1 001
20 N 000000 0000884 .SCREW PLUG
CONVERTER
M10X1 001

Benz has so many part numbers for the same thing. Searching a part number by VIN is always best as the whole Benz system is driven by VIN & that will be correct for your car build.
EDIT: I did a generic search for transmission 722.901
Last edited by Glyn M Ruck; Jun 24, 2013 at 03:37 PM.

e.g. ~ Your car will definitely have an M8 TC plug.
Your car will not however have a 9 12 or 12 12 pan fitted but both will fit. (from experience we know your MY car came with the original pan prior to redesign.

If you already have the 09 12 pan then your car has been updated. Leave well alone.
Last edited by Glyn M Ruck; Jun 24, 2013 at 08:13 PM.
If you already have the 09 12 pan then your car has been updated. Leave well alone.
Rodney, same thanks to you sir for your help.
So as I reported when I got this car, I showed my local dealer the WIS document and they assured me that they drained the torque converter.
However, as i reported here, I was having "jerky" really JERKY start ups on the car and you guys told me it sounded like the transmission fluid was low.
I have taken the car in at least three or four times -- mechanic who did the torque converter drain said there was no problem.
I have contacted MB double this many times on the phone about the jerky starts with the transmission in gear.
Yesterday?
The car got stuck in 1st gear. Revving wildly. Thank God I was on a side street.
Not happy.
Should I have the transmission fluid analyzed or -- what?
This is bad news. In eight months, I have put on about 2500 miles. That's it. The transmission should not be sticking after a full torque converter drain and work done according to the WIS, AS MY MB DEALER STATED THAT THEY DID.
I think you need to get the TCU codes pulled to see what they say. If there are no codes, then it sounds like it's not getting enough pressure to make a shift, and this is often a symptom of low fluid. Even if the they didn't do a proper torque converter drain, this shouldn't be a problem if they did refill it properly.
When I did mine, I had a hard time getting the temperature just right, and just a few degrees did make a difference in the overflow rate. Maybe it's time to find a good indy that knows this stuff, or maybe one who is willing to research these threads and the WIS docs we have posted and check it for you. If I can do it, then surely a professional mechanic with a proepr lift and tools can handle it.
722.9 transmission oil change is the one thing I do not do myself. Search my user name and DIY, I do a lot on my own.
I do not think my service dealer drains the torque converter. Does that not apply to my car? Just thought I would ask.





