Genuine VGS NAG3 Transmission Control Unit for Mercedes-Benz
This is a Genuine OEM VGS NAG3 Transmission Control Unit (TCU), specifically engineered for Mercedes-Benz vehicles equipped with the advanced 9-speed 9G-Tronic automatic transmission. The VGS (Virtual Gear Shift) NAG3 module is manufactured to the highest factory standards to ensure exact fitment, seamless network integration, and reliable operation. Built with premium electronic components, this genuine unit serves as a direct replacement for a damaged or faulty original computer. Please note that due to Mercedes-Benz security protocols, professional installation, online SCN coding, and adaptation via the official Xentry diagnostic system are required to pair this module with your vehicle.
Function
The VGS NAG3 Transmission Control Unit acts as the electronic brain for the 9G-Tronic gearbox. Its primary function is to process real-time data from various vehicle sensors—including engine load, road speed, throttle position, and gear selector status—to calculate and execute optimal shift points. It manages hydraulic solenoids within the transmission to ensure smooth, lightning-fast, and efficient gear transitions. Additionally, the module continuously monitors transmission health, fluid temperature, and clutch slip to protect the gearbox from damage, maximize fuel efficiency, and communicate vital operational data across the vehicle's CAN bus network.
Support Car Models
- Mercedes-Benz S-Class (W222 / W223)
- Mercedes-Benz E-Class (W213 / S213)
- Mercedes-Benz C-Class (W205 / W206)
- Mercedes-Benz GLE, GLS, and GLC (X253 / X167 / X254)
- Mercedes-Benz G-Class (W463)
- Other Mercedes-Benz models equipped with the 9G-Tronic (NAG3) transmission (Please verify exact fitment and compatibility with your VIN before purchase)
