722.9 Transmission Software Upgrade

The RENNtech transmission software upgrade is designed to enhance the performance of your vehicle's 722.9 Mercedes seven-speed transmission. This upgrade is crucial when increasing engine performance to ensure that the driveline components can handle the power and transmit it effectively to the wheels without slippage. It specifically addresses the transmission as a potential weak point in high-performance scenarios. The RENNtech upgrade focuses on improving key transmission characteristics. Drivers will notice improved shift response and more precise shift timing. Furthermore, the upgrade significantly increases the transmission's torque handling capabilities, making it more robust under extreme conditions. Despite these enhancements for performance driving, the software is calibrated to maintain comfortable drivability for everyday use around town. This software upgrade is performed exclusively at the RENNtech HQ in Stuart, Florida. The upgrade has been shown to drastically improve 0-60 times and is available for specific models. Available for: C218 - CLS 63 AMG (MY2012-13) C218 - CLS 63 AMG 4MATIC (MY2014) C218 - CLS 63 AMG 4MATIC (MY2015-18) W212 - E 63 AMG (MY2012-14) W212 - E 63 AMG (MY2014-17) Note: For RENNtech Transmission Upgrades on the C217 and W222 S-Class, the vehicle must be present at the RENNtech HQ in Stuart, FL.