Remove/install airbag unit on the steering wheel (-2008) - AR91.60-P-0660V

MODEL 171.4 

Fig 1: Identifying Airbag Unit On Steering Wheel Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury.  Injuries may result when 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.
1	Adjust driver seat and steering column all the way back	See Operator's Manual
2	Switch off the ignition and remove the transmitter key from the EIS control unit
3	Insert screwdriver bit into the openings (arrows) at the back of the steering wheel (2) and unscrew the screws out of the driver airbag unit (1)		Fig 2
			*BA91.60-P-1001-01A
4	Remove driver airbag unit (1) from steering wheel (2) and turn over to rear until lock tabs (3) are accessible
5	Unclip lock tabs (3) and disconnect electrical connectors (5)		Fig 3
		Installation:  the electrical connectors (5) must be heard to latch into place properly.
6	Disconnect electrical connector (4)
7	Disconnect driver airbag unit (1) from steering wheel (2)	If driver airbag unit (1) is being replaced, the defective driver airbag unit (1) must be properly disposed of. Refer to: ↓
		Notes on disposing of airbag and emergency tensioning retractor units	OS91.00-P-0001-01A
8	Install in the reverse order
9.1	Read out fault memory	When replacing driver airbag unit (1).
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnosis system	*WH58.30-Z-1048-13A

AIRBAG

Number	Designation		Model 171
BA91.60-P-1001-01A	Bolt, airbag to steering wheel	Nm	8

Fig 2: Identifying Screwdriver Bit (126 589 00 10 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Removal Lever (203 589 04 33 00)

Courtesy of MERCEDES-BENZ USA

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1048-13A	STAR DIAGNOSIS diagnosis system, Compact Passenger Car	6511 1801 00