Remove/install airbag unit on steering wheel - AR91.60-P-0660EL

MODEL 117, 156, 172.4, 176, 190, 204.3, 218, 231, 242, 246 

MODEL 204.0/2, 207, 212 as of model year 2012/AEJ11 

MODEL 204.9 as of model year 2013/AEJ12 

Shown on model 218 

Fig 1: Identifying Airbag Unit On Steering Wheel Remove/Install Components - Shown On Model 218

Courtesy of MERCEDES-BENZ USA

Shown on model 218 

Fig 2: Identifying Airbag Unit On Steering Wheel Remove/Install Components - Shown On Model 218

Courtesy of MERCEDES-BENZ USA

	Risk of injury  during testing and repair operations related to pyrotechnical components	Do not expose pyrotechnical components to temperatures above 100 °C or 212. Disconnect current supply when working on such components.	AS91.00-Z-0008-01A
	Information, assessment and legal requirements when working with, handling and storing pyrotechnical components		AH91.00-Z-0000-10A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Assessment of airbag and belt tensioner units in accident vehicles		AH91.00-P-0006-01B
	Legal requirements on handling and storing airbags and emergency tensioning retractor units		AH91.00-P-0004-01A
	Remove/install
1	Place steering column in the central height position
2	Disconnect ground line at the on-board electrical system battery	MODEL 172	AR54.10-P-0003W
		MODEL 204.0/2 as of model year 2012 /AEJ11MODEL 204.3 MODEL 204.9 as of model year 2013/AEJ12	AR54.10-P-0003CW
		MODEL 207, 212 as of model year 2012 /AEJ11MODEL 218	AR54.10-P-0003EW
		MODEL 231	AR54.10-P-0003RK
		MODEL 117, 156, 176, 242, 246	AR54.10-P-0003NKB
		MODEL 190	AR54.10-P-0003RG
3	Insert Torx screwdriver into openings on steering wheel (2) and press retaining springs (7) inward	Use Torx screwdriver T20. When removing the driver airbag (1) for the first time, the openings on the steering wheel (2) must be pierced. The condition of the openings can be determined by carefully exploring with the Torx screwdriver. The retaining springs (7) must latch audibly into the driver airbag (1).
4	Remove driver airbag (1) far enough from steering wheel (2) until the connector (3) is accessible
5	Disconnect plug (3) at steering column tube module
6	Remove driver airbag (1) from steering wheel (2)	If the driver airbag (1) is replaced, then the defective driver airbag (1) must be disposed of properly.
7	Install in the reverse order
8	Connect Star Diagnosis and check Supplemental Restraint System (SRS)	When replacing the driver airbag (1).
		MODEL 117, 156, 172.4, 176, 204.3, 218, 231, 242, 246 MODEL 204.0/2, 207, 212 as of model year 2012 /AEJ11MODEL 204.9 as of model year 2013/AEJ12	AD00.00-P-2000-04A
		MODEL 190	AD00.00-P-2000-04B