DIY 722.9 7G-tronic 7-speed automatic transmission service thread
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
DIY 722.9 7G-tronic 7-speed automatic transmission service thread
Johnand's excellent DIY 722.9 7G-tronic 7-speed automatic transmission service thread with WIS documents attached:
https://mbworld.org/forums/c-class-w...+722.9+service
https://mbworld.org/forums/c-class-w...+722.9+service
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Level is checked by spill over method at correct temp from beneath. Use IR thermometer or similar on pan to take temperature as an alternative to Star DAS.
The use of 236.14 fluid is mandated. Ryder fleet products have by far the best deal on this product by Shell at under US$ 6 per quart. Most dealers are charging over $20/quart. The Shell product is fully approved. Many use Fuchs Titan 4134 as well.
See description. It is Shell product in a Shell container - Pennzoil is owned by Shell. Many have confirmed correct product in Shell packaging on receipt.
http://www.ryderfleetproducts.com/ry...oductDetail.do
The use of 236.14 fluid is mandated. Ryder fleet products have by far the best deal on this product by Shell at under US$ 6 per quart. Most dealers are charging over $20/quart. The Shell product is fully approved. Many use Fuchs Titan 4134 as well.
See description. It is Shell product in a Shell container - Pennzoil is owned by Shell. Many have confirmed correct product in Shell packaging on receipt.
http://www.ryderfleetproducts.com/ry...oductDetail.do
Last edited by Glyn M Ruck; Dec 9, 2011 at 05:27 PM.
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Just cobble up a large syringe/oil pumping arrangement with a flexible tube on it & get the car on a hoist. All you are doing is replacing a workshop air operated pump. Observe temperature requirements in the attached pdf.s to Johnands DIY thread and above. Read pdf's in detail - all will be plain.
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From: Delaware
2004 Mazda6, 1993 RX7
Found this detailed description of the 722.9 auto trans on the web. Likly already in Johnands thread. Includes some off MB doucument pages, posted by Glyn as necessary.
MERCEDES-automatic-transmission-722-9
.
MERCEDES-automatic-transmission-722-9
.
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
W209 - https://mbworld.org/forums/clk-class...s-60k-kms.html
W204 - https://mbworld.org/forums/c-class-w...s-60k-kms.html
W203 - https://mbworld.org/forums/c-class-w...s-60k-kms.html
W204 - https://mbworld.org/forums/c-class-w...s-60k-kms.html
W203 - https://mbworld.org/forums/c-class-w...s-60k-kms.html
Last edited by Glyn M Ruck; Jan 21, 2012 at 11:41 AM.
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From: Southeast
2008 C300 Sport, RWD, US
Glyn
I just found in another thread where someone who just had a transmission service found that he was charged for 6 quarts of fluid and the concensus is that they must have not done the torque converter as it should have taken 9 quarts.
Does this sound right and does it apply to my 2008 C300????
https://mbworld.org/forums/c-class-w...-done-but.html
I just found in another thread where someone who just had a transmission service found that he was charged for 6 quarts of fluid and the concensus is that they must have not done the torque converter as it should have taken 9 quarts.
Does this sound right and does it apply to my 2008 C300????
https://mbworld.org/forums/c-class-w...-done-but.html
Last edited by JimPap; May 4, 2012 at 08:12 AM.
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From: SA
2008 C350-Sport-AMG-Active Agility Pack(Not reliable) +Izuzu KB6 3L(It seems Reliable)+Mazda
Not all W204 has the TC-Plug
I querried my C350 and was told not all W204's with this transmission comes with the TC-Plug, so 6L Fluid.
I was invited to bring car and they show me, I will do that.
What now ?, is my question.
I was invited to bring car and they show me, I will do that.
What now ?, is my question.
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
I have never seen a W204 without a TC drain. Only very early 722.9 transmissions fitted to the S Class before the W204 launch.
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Glynn, I 'believe' I have the 722.9 transmission in my 2007 R W251. Does the 'reprogram' work on this transmission as I do with my 2004 W209 5-speed? (key to 'on', push throttle to floor, hold 5 seconds, turn off key, release throttle, wait 2 minutes before removing key) Works great in the 5 speed to get rid of 'granny' mentality!
Thanks! Jerry
Thanks! Jerry
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
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From: Houston, TX
W209 CLK Renntech Widebody, C140 CL600 V12, AP2 S2000, NSX Twin Turbo, R8 V10
You can order it on the web, parts.com had it for $40US (msrp $50). I don't know if that comes with redesigned spill tube or not though.
Last edited by Nero Tenebre; Feb 22, 2014 at 01:40 PM.
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2006 CLK 350
I replaced transmission fluid on other car before. Here is what I did measure the amount of fluid coming out and put the same amount back in. Sounds simple...right. Why can we do the same on Mercedes?
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C63 2012 M156
Hi Folks, simple question but I can't seem to find the answer.
Can I determine if my trans uses blue or red from the VIN?
WDD2040772A658173
....Found it 236.15 blue for post 21st June 2010
Can I determine if my trans uses blue or red from the VIN?
WDD2040772A658173
....Found it 236.15 blue for post 21st June 2010
Last edited by Missionary; Aug 6, 2015 at 07:29 AM.
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From: Sydney, Australia
2007 clk350 coupe, 2013 C250 coupe, 2013 C250 wagon
Hi, I just completed the service on my 722.9 transmission on my CLK 350. I followed the method described in Scott Elliott's terrific YouTube video and all went really well. I have a couple of further tips that may be of use to others following the same method:
- Torque Converter draining: Finding the T/C drain plug without an assistant as I did was made much easier by doing it by feel - I had to be close to the front end of the engine to supply sufficient strength to the breaker bar to rotate the engine (and therefore you can't see into the little T/C inspection window) - but I found it quite easy to reach back into the opening with my free hand and just feel the T/C surface as I slowly rotated it with the breaker bar. This way you really can't miss the plug.
- Transmission cooler flush using compressor air - forced fluid: In the video Scott uses a conical rubber fitting on a metal tube to hook up temporarily to the cooler line for the flush. I found it much easier to use 12mm clear tube (instead of 10mm) which fits just nicely onto the cooler line over the o-ringed end. This allowed me to not have to shift the cooler line end as far away from the transmission, as I could easily curve the vinyl tube onto the line fitting. I didn't worry about damaging the o-rings as I replaced them when I finished the flush part (just a couple of $).
- I used new factory pan bolts as I wouldn't trust the different expansion rates if substituting steel as Scott did. I also used MB fluid, as here in Australia the difference was only about $40 dearer than the aftermarket fluid.
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CLK280 Avant-garde cabriolet amg
Thanks to the contributors who provided the ‘plan’ I used to change my ATF on my w209 clk.
All went well. No leaks.
I bought the CLK with just 50 K kilometers on the clock, but didn’t discover the need for the ‘once-only ATF replacement at 60,000 k’ until recently. It IS in the maintenance book, but hidden under ‘other maintenance’ ! There is no mention in the service history of it having been done before I bought it (it was not even due). So the change was well overdue.
Used all OEM parts for safety. Happily The oil pan was the new one so all good there.
I drained the pan and the torque converter, but did not flush the lines or cooler.
Some thoughts:
All went well. No leaks.
I bought the CLK with just 50 K kilometers on the clock, but didn’t discover the need for the ‘once-only ATF replacement at 60,000 k’ until recently. It IS in the maintenance book, but hidden under ‘other maintenance’ ! There is no mention in the service history of it having been done before I bought it (it was not even due). So the change was well overdue.
Used all OEM parts for safety. Happily The oil pan was the new one so all good there.
I drained the pan and the torque converter, but did not flush the lines or cooler.
Some thoughts:
- when we opened the pan drain, quite a bit of oil came out. Why would this be when the level should only have been to the top of the filler tube,especially when cold? Would it have been overfilled at factory, or is there some other reason.
- The oil was not too black, and there was little or no metal sticking to the magnets. Maybe I am lucky, but it did make me wonder if the change had been already made for some reason.
- I had trouble getting a filler tube, so we made one from a nylon bolt with the correct thread and drilled a hole down the middle.
- We used my son’s car lift, which allowed us to sit underneath to work. I am not sure how we would have managed without it.
cheers.
- When we removed the pan plug, there was a gush of ATF. This surprised me as I expected there to be no oil above the filler tube,especially when cold ! Can anyone suggest why the oil would be at that level?
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From: Sydney, Australia
2007 clk350 coupe, 2013 C250 coupe, 2013 C250 wagon
My theory re your question about the level and your surprise that fluid drained at the first drain plug removal when cold:
The level is checked when running and therefore fluid is "in place" in the various valves and actuators and also above the natural drain level of the T/C as it is being pumped around in the transmission. When the transmission is stopped (engine off) the fluid drains back down into the pan as it is no longer "in use" in the mechanisms above the normal static fluid level. The static fluid level (even when cold)) would therefore be well above the top of the fill tube. If you look at the You tube videos you will see all of them (at least those that I watched) would drain maybe 1 to 2 litres at the first removal of the drain plug. Mine certainly did exactly that.
The level is checked when running and therefore fluid is "in place" in the various valves and actuators and also above the natural drain level of the T/C as it is being pumped around in the transmission. When the transmission is stopped (engine off) the fluid drains back down into the pan as it is no longer "in use" in the mechanisms above the normal static fluid level. The static fluid level (even when cold)) would therefore be well above the top of the fill tube. If you look at the You tube videos you will see all of them (at least those that I watched) would drain maybe 1 to 2 litres at the first removal of the drain plug. Mine certainly did exactly that.
