Mercedes Automatic Transmission Fluid Service Kit - Liqui Moly 7226FCK1

Minimal effort, maximum return. FCP Service Kits take the guesswork out of maintenance service so that you can spend more time enjoying your car and less time figuring out how to maintain it. What fluid do I use, what quantity, did I choose the right filter, will this void my warranty, whats a 722.6, NAG1, 5GTronic???? You don’t need to concern yourself with any of that. We chose the best quality fluid and packaged it with the correct Genuine Mercedes gaskets and hardware. Take the kit to your independent service specialist or do it yourself on a Saturday afternoon. It’s all there and it’s all quality.

The Mercedes 722.6 transmission or 5GTronic is one of the most popular Mercedes transmissions in operation used from 1996-2015. This transmission was used across various models from the C-Class up to the SLR McLaren supercar. In addition, it was also installed in various Porsche 996 models, supercharged Jaguars, and various Chrysler/Jeep/Dodge applications. This is an electronically controlled transmission and most common failures are electronic on these models. Shift modules which are integral to the shift lever assembly commonly fail when they are inadvertently exposed to soft drinks and coffee. Conductor Plates commonly fail when the speed sensors stop functioning. These failures typically lead to erratic shifting, a check engine light and a transmission stuck in limp mode.

The most common fluid leak is at the 13 PIN electrical connector, if left unattended, it is not uncommon for fluid to wick its way up to the transmission control module. Good practice is to change the fluid level every 40k miles, and periodically check for leaks. This transmission is not equipped with a dipstick and requires a special service tool to verify fluid level. When properly maintained, the transmission should last the life of the vehicle.