The clutch solenoid valve is located next to the pump at the driver’s side of the gearbox and is responsible for the clutch actuation of the SMG system. A faulty valve can cause problems while engaging the clutch (for example shuttering) and in consequence the car refuses to change gears. This is a factory-new spare part.
Your wanted part is not listed in the shop? Maybe we can repair it. Have a look at our repairs section!