Remove and install multifunction sensor - AR83.40-P-6730SX

MODEL 216.3, 221.0/1 

Shown on model 221 

Fig 1: Identifying AAC Multifunction Sensor, Cover And Electrical Connector

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Switch off ignition and withdraw transmitter key or Keyless Go start/stop button from the EIS [EZS] control unit	Keyless Go start/stop button only for vehicles with code (889) Keyless Go.
2	Unlock and remove cover (1)
3	Remove AAC [KLA] multifunction sensor (B31/1) and detach electrical connector (2)
4	Install in the reverse order