Mercedes-Benz W211 Transmission Diagnostics - Everything You Need To Know (722.6 5-Spd, 722.9 7-Spd)

►In this Mercedes-Benz W211 Transmission Guide, Kyle Bascombe, our Mercedes-Benz Catalog Manager, educates us about the transmissions found in the W211 chassis. There are two main transmissions covered in this video—the 722.6 5G-TRONIC NAG1 and the 722.9 7G-TRONIC NAG2. Kyle goes over key maintenance items, common failure points, and how to service these transmissions.

Kyle answers some of the most common questions such as:
• When should I service my transmission?
• I just serviced my Mercedes-Benz transmissions and how come it no longer moves?
• Which dipstick tube cover is for transmission fluid and which is for oil?
• Why is my car going into limp mode?
• Why is my car having trouble shifting?
• How do I have my new conductor plate coded to my vehicle?

If you want to read more about Mercedes-Benz W211 chassis vehicles, these are the most popular related articles on our blog:

Mercedes-Benz W211 Models Equipped with the 5G-TRONIC 722.6 Transmission:
• 2003 Mercedes-Benz E500
• 2003-2006 Mercedes-Benz E55 AMG
• 2004-2006 Mercedes-Benz E500 4Matic
• 2004-2005 Mercedes-Benz E320 RWD & 4Matic
• 2006-2009 Mercedes-Benz E350 4Matic
• 2007-2009 Mercedes-Benz E550 4Matic

Mercedes-Benz W211 Models Equipped with the 7G-TRONIC 722.9 Transmission:
• 2004-2006 Mercedes-Benz E500
• 2006-2009 Mercedes-Benz E350
• 2006-2009 Mercedes-Benz E550
• 2006-2009 Mercedes-Benz E63 AMG
• 2007-2009 Mercedes-Benz E320 BLUETEC

Mercedes-Benz W211 Transmission Parts Referenced in the Video:

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[eatmoreeats]

we have to appreciate FCP Euro for these detailed videos. Its next level! we love FCP!

[Aardvark]

Good review Kyle. I recently had transmission problems with the 722.9 in my '07 C230. It would not shift correctly and threw the speed sensor codes. I removed the valve body, then separated the conductor plate which I sent off for repair. Got new gasket and hardware from FCP and used AMSOIL fluid. I spent about $500 total on this repair and the transmission has been flawless since. This is a little more involved than just a filter and fluid service but can be DIY'd if you study the available videos and take your time. I gathered all the parts and fluid before starting, so in all the car was down about a week to allow for transit and repair of the conductor plate.

[davidjohnson]

Thank you for doing more W211 info. There's more Forum info online V.S. Video resources. Appreciate it.

[thesupernuge]

Good info but would like to see more detail on the actual service. Maybe in another video?

[mercedesjuneetxjune]

just replaced the conductor plate on my 2006 CLS 55 AMG after it went into limp mode came out to about $150 - $160 Mercedes would have easily charged me $1500 - $1700

[creativeayo]

...just when I needed info on this. Thank you!

[terrymarsh]

Kyle thank you so much I really appreciate everything you do! When is the racing season begins! Have a wonderful day

[billroberts]

Kyle, a very sincere thank you for sharing

[marcosortolani]

Thanks for the video! I have a 722.118 that has been sitting for years. It has no leaks and the pressure is according to the manuals. The problem is that at times the pressure drops to zero and the exchange doesn't work. I changed the oil and filter, but the problem persists. It only works again when I accelerate above 3000rpm. Any suggestion?

[patricegauthier]

You're awesome thank you from Vancouver Canada 🇨🇦

[TheMreMail]

This is exactly the information I was looking for. Also the ending comment is also what I'm looking for.

[metinsukrugencturk]

I’ve 08 E350 4Matic and 166000Km, the problem is come true shifting! Sometimes, gear stuck 2nd or 3rd OR doesn’t shifts. The code reader says P0730-32. But however, sometimes there is Zero issue from transmission, runs smooth gears shifting enormous and runs like thunder. And I’m pretty, previous owner didn’t change transmission fluid nor flushed(and previous owner was the first owner until I bought) So, what would be your opinion? Thanking in advance for your reply..

[gregdali]

I sent the conductor plate to circuit board medics and they replaced the sensor for around 300$ plus 400$ for mechanic who took it down including fluid, saved me over 1k if had to go at the dealer

[anon]

I have a 5 speed transmission in a 2005 w211 E55 not a 7 speed, also wish this video had subtitles.

[powpow]

i have the TC slipping in any gear....no error, no limp mode no nothing just slipping. put another TC and the same. new liquid and the same. any suggestion? is 722.6

[tomshaner]

I own a 2003 Mercedes SL55 AMG and I’m hoping you can help. The other day the engine light came on, the dealership replaced the Transmission Control Module. Prior to this repair while in S mode I could tap the shift lever right or left and it down shift and up shift, now nothing happens. In Manual it shifts fine and down shifts automatically. The tranny works fine otherwise, moves smoothly through gears. How can I restore this function?

[geoffsullivan]

You see I've go a p0705 code on my obd saying "Transmission Range Sensor A Circuit PRNDL Input) now is that the same as a (speed sensor) code reading ?

[RSHxSNPR]

Well, previous owner had the black cap on the dip stick tube cover and I filled it with ATF. What do I do now?

[OGEKUTE]

hello i have s w211 e270I am facing a problem with the Vitesse, after its maintenance, deletion of faults, checking everything related to movement, and the car is still moving a little and then stops or does not move at times, and there was a brake call

[tonychavez]

Thanks for the vid. Any/all 211 info is great..