Automatic Transmission Mercedes E-Class W207 with Torque Converter – 7-Speed Auto A2122705500 651911 Diesel 2143cc (2009-2017) If you’re looking for a reliable replacement automatic transmission for your Mercedes E-Class W207, this 7-speed automatic gearbox with a torque converter is an excellent choice. Specifically designed for vehicles equipped with the 651911 diesel engine (2143cc), this transmission ensures smooth gear transitions, optimal performance, and long-lasting durability. Perfect Compatibility: Engineered specifically for Mercedes E-Class W207 models, ensuring a seamless fit and flawless operation.