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

MODEL 216.3, 221.0/1 

Shown on model 221 

Fig 1: Identifying Airbag Unit On Steering Wheel Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury  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.	AS91.00-Z-0001-01A
	Notes on performing repair, body work and welding on vehicles with airbags and ETR units		AH91.00-P-0002-01M
	Assessment of airbag and seat belt tensioner units in accident vehicles		AH91.00-P-0006-01B
	Legal regulations on handling and storing airbags and emergency tensioning retractors		AH91.00-P-0004-01A
1	Adjust the driver seat and the steering column backwards into its end position
2	Connect ground line to starter battery and to on-board electrical system battery		AR54.10-P-0003SX
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)	The bolts remain on the steering wheel (2).
			*BA91.60-P-1001-01L
			Fig 2
4	Remove driver airbag unit (1) far enough from steering wheel (2) until the electrical connector (3) is accessible
5	Disconnect electrical connector (3)
6	Release lock tabs (4) and detach electrical connectors (5)	Installation:  The electrical connectors (5) must audibly engage when connecting onto driver airbag ignition squib 1 (R12/13) and driver airbag ignition squib 2 (R12/14).	Fig 3
7	Disconnect driver airbag unit (1) from steering wheel (2)	If driver airbag unit (1) is 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	Check supplemental restraint system (SRS) with STAR DIAGNOSIS	After replacing the driver airbag unit (1).
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
		STAR DIAGNOSIS diagnostic system	*WH58.30-Z-1048-13A

AIRBAG

Number	Designation		Model 216	Model 221
BA91.60-P-1001-01L	Bolt, airbag to steering wheel	Nm	7	7

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 diagnostic system, Compact Passenger Car	6511 1801 00