Remove/Install Driver Airbag On Steering Wheel - AR91.60-P-0663MFA

Model 118, 243 

up to model year 2022 

Model 177, 247 

up to model year 2021 

Fig 1: Driver Airbag On Steering Wheel Components Location - Model 177 Up To Model Year 2021

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

	Risk of injury  during testing and repair operations related to pyrotechnical components	Do not expose pyrotechnical component parts to temperatures above 100 °C or 212 °F. Disconnect current supply when working on such component parts.	AS91.00-Z-0008-01A
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Information, assessment and legal requirements when working with, handling and soring pyrotechnical components		AH91.00-Z-0000-10A
	Remove/install
1	Move steering wheel (6) all the way upward.
2	Clamp off ground line of on-board electrical system battery (G1).		AR54.10-P-0003MFA
3	Insert suitable tool (1) into right and left opening (arrow) on steering wheel (6) and push each end of the spring (2) inwards until driver airbag (4) is released.	A suitable tool (1) would be a round bar of approx. 4 mm in diameter or a commercially-available hexagon socket, size 4 mm. When removing the driver's airbag (4) for the first time, the right and left opening (arrow) at the steering wheel (6) must be pierced. The ends of the spring (2) must audibly engage into the mounts (5) of the driver's airbag (4).
4	Carefully remove driver's airbag (4) then release and disconnect electrical connector (3).	Make sure that the electrical connector (3) engages properly.
5	Dispose of driver's airbag (4) properly.	When replacing the driver airbag (4).
6	Install in the reverse order.
7	Check Supplemental Restraint System (SRS) using vehicle diagnosis system.
			AD00.00-P-2000-06MFA