Reasons why the Mercedes-Benz C426 fault code causes the car not to move when shifting gears?
2 Answers
Mercedes-Benz C426 driving permission not granted leading to the car not moving when shifting gears may be due to DSG transmission computer data loss. You can perform a trial run with original equipment or modify the transmission computer board data. Mercedes-Benz is a world-renowned luxury car brand. In January 1886, Karl Benz invented the world's first three-wheeled car and obtained a patent (Patent No.: DRP37435), being hailed as "the inventor of the automobile". At the same time, Gottlieb Daimler, another founder of Mercedes-Benz, invented the world's first four-wheeled car. From then on, the world changed. In June 1926, Daimler-Motoren-Gesellschaft and Benz & Cie. merged to form Daimler-Benz AG, and cars named Mercedes-Benz became representatives of high-quality, high-performance automotive products.
My Mercedes-Benz also had the C426 fault code before, where it wouldn't move at all after shifting gears. That time it was because the transmission position sensor failed. The sensor is responsible for detecting gear shift positions, and once it malfunctions, the transmission won't know which gear to engage, causing the car to stay stationary. After I took it to the repair shop, the mechanic used a diagnostic tool to detect abnormal voltage output from the sensor, and replacing it fixed the issue. Actually, the Mercedes C426 code commonly indicates sensor problems, especially when the vehicle has been used for a long time and is prone to corrosion or wear. Regular inspection of the transmission and sensor connectors can prevent this. Additionally, dirty fluid or stuck solenoid valves may also cause similar faults, but the sensor should be the first point of inspection. If you encounter this issue, don't panic—safely pull over and let a professional mechanic handle it.
