Mercedes 722.9 7G Transmission Pan: What You Need to Know

Mercedes-Benz drivers familiar with the 722.9 seven-speed automatic transmission know that proper maintenance starts with a solid oil pan. The OEM part number A 220 270 09 12 refers to a first-generation pan, complete with a white fill level pipe and a built-in magnet that captures metallic debris.

Why does that magnet matter? Over thousands of miles, normal wear inside the transmission produces fine metal particles. If those particles circulate through the fluid, they can accelerate wear on clutches and valve bodies. The magnet traps them, keeping the fluid cleaner and reducing the risk of premature failure.

The 722.9 transmission appeared in a wide range of Mercedes models from the mid-2000s through the 2010s, including sedans, SUVs, and performance variants. While the pan itself is a straightforward component, using the correct version ensures proper fitment and fluid level readings.

For owners tackling a transmission service, replacing the pan and gasket is standard procedure when changing the fluid. The white level pipe allows accurate checking without special tools. 9 transmission.

Whether you are a DIY enthusiast or a shop servicing a customer's car, having the right pan on hand saves time and prevents leaks. As with any transmission work, using quality components and following Mercedes service intervals remains the best way to keep a 722.9 shifting smoothly for years to come.