Mercedes Benz 722.9 Transmission Fluid & Filter Replacement DIY (2005-2017 Mercedes 7G-Tronic, NAG2)

The 722.9 7G-Tronic transmission was Mercedes' staple for nearly eight years. Each was supposed to have fluid last the "lifetime" of the transmission, but we now know that's not the case. Servicing your 722.9 transmission is a must, and we have the parts and instructions to help you.

You should replace your 722.9's transmission fluid every 60,000 miles, roughly. The exact replacement mileage is dependent on the use case. If you're towing, shorten that interval. If you're doing exclusively easy highway driving, you may be able to push that figure higher.

In this video, Danny Kruger, FCP Euro's Mercedes Expert, replaces the transmission fluid and filter in a 722.9 7G-Tronic Transmission.