Remove/install WSS control unit - AR91.60-P-0800GZ

MODEL 164 with CODE (494) USA version 

Only vehicles with WSS (weight sensing system) 

Fig 1: Identifying WSS Control Unit Components (1 Of 2)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Identifying WSS Control Unit Components (2 Of 2)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
	Risk of injury  caused by performing testing or repair work on airbag or emergency tensioning retractor units.	Store airbag units with deployment side facing up; do not expose to temperatures greater than 100°C. When working on these units, disconnect the power supply.	AS91.00-Z-0001-01A
	Notes on avoiding damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Remove front seat (1) on passenger side		AR91.10-P-1000GZ
2	Unscrew bolt (2)
3	Disconnect all electrical connectors from WSS control unit (weight sensing system) (N2/13) (arrow A)	Do not damage electrical connectors and cable! Installation:  Ensure that cable is routed correctly!
4	Remove WSS control unit (weight sensing system) (N2/13)
5	Install in the reverse order
6	Calibrate left front WSS sensor (weight sensing system), right front WSS sensor (weight sensing system), left rear WSS sensor (weight sensing system) and right rear WSS sensor (weight sensing system) with STAR diagnosis system	Plates	Figure
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A

Fig 3: Identifying Plates (211 589 00 32 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.