If you own an older Mercedes with the 7-speed 722.9 transmission and the car has over 120,000 miles, the day may come when the transmission will suddenly not shift or not shift past 2nd gear. This is more likely to happen if the transmission has no fluid and filter changes every 40,000.
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This happened to Kent in his 2004 E500 recently with 150,000 miles on the clock. In this xx minute instructional video, Kent will show you what happened, how he used his $400 scanner to isolate the problem and discuss what options are available to fix it. You have to be willing to do the work yourself. A dealer will not do the "repair" route (they will only replace the expensive transmission parts, and you may not be able to find an independent mechanic willing to take the risk. Yes, there is a risk that the repair may not work as there may be multiple problems with the transmission. Kent felt the risk was worth saving $ 3,000, and it worked!
If you are going to do it yourself, be sure to watch the other 2 videos in this series on valve body R&R and cleaning.
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Important note: This video manual may or may not include all the information you will need to troubleshoot and/or repair your specific problem/s. Please read the full description carefully to determine if this video is applicable to your year and model and contains the information you are looking for. If not, please refer back to our "Solutions Finder" and enter your chassis number and the specific problem you are having to see if we offer a solution.
Related Products:
2003 to 2010 7-Speed Transmission Valve Body and Conductor Plate Service / Replacement Kit
2FREE limp-home troubleshooting video included! Be forewarned! It is not as easy as it looks on some YouTube videos to remove a valve body and conductor plate from an early 722.9 transmission.
722.9 7G Transmission: Cleaning the Valve Body and Conductor Plate
If you are planning to remove your 722.9 conductor plate for inspection or repair, you will want to take the time to thoroughly clean the plate, the valve body, and the solenoids. No cleaning agents or foreign chemicals should be used.
722.9 7G Transmission: Valve Body and Conductor Plate Removal and Replacement
Removing the valve body is not difficult, but it is fraught with risk. It is easy to damage the conductor plate if not removed properly, and that can be a very expensive mistake.