A0004640318 Steering Wheel Spiral Cable Clock Spring For Mercedes S-CLASS W220

It is mainly used to connect the main airbag and airbag wiring harness of the car, as well as the switch button of the steering wheel and the wiring harness of the control unit. Its function is to ensure that the circuit connection of the driver's front airbag, horn switch and other electrical components is normal when the steering wheel is rotated. It is an important safety component in the car steering system