Troubleshooting and repairs for the Mercedes 722.3 and 722.4 Transmissions
Mercedessource Videos and new transmission kits are here!
You will find these kits and manuals helpful in sorting out your own transmission problems. My 61x Transmission Tuning Manual is the longest manual I have written to date, but the customer feedback has made it all worth the effort. It is nice to know we are saving "one transmission at a time."
When "de-bugging" an automatic transmission shift problem you need to go about it in a systematic manner. Just throwing money and parts at transmission shift problems will usually lead to much frustration and loss of money.
Before assuming the worst I recommend you do the following:
- Don't spend any money on expensive parts until doing a proper diagnosis
- The manuals and test kits I offer will help you isolate the problem
- If you are having a shop work on your transmission be extra cautious
- Get more than one opinion if seeking help from a transmission shop
- Look outside the transmission first. Many problems are external
On overhauling these old transmissions:
They all need help now, not because they are mechanically worn out, but rather because all the old rubber lip seals and O-rings are hard and worn out. They all need resealing!
Here is a link to my full 12 part transmission video class on how to overhaul these transmissions, on sale for the month of March!
Here is a link to all the kits and parts we over for repairing these transmissions:
https://mercedessource.com/store/search?keys=722.3%20722.4