Mercedes-Benz W208 Trans Valve Body Electrical Plate

If the automatic transmission in your Mercedes-Benz has started to shift inconsistently, or is presenting fault codes due to electrical components, the cause could be a failed conductor plate.

This plate is attached to the valve body in your automatic transmission, and is what the pressure relief valves and shifting control valves are attached to, and where they receive their signal from. If this conductor plate fails, your transmission will no longer be able to shift properly, and your car will eventually go into 'limp' mode, making for a less than pleasurable driving experience.