Remove/Install Steering Wheel Electronics - AR82.90-P-0100FRD

Model 118, 167, 177, 213, 238, 243, 247, 257 

with code L5C (Supersport steering wheel-leather deep-embossed) 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove
1	Remove driver's airbag from steering wheel.	Model 167 with code L5C (Supersport steering wheel-leather deep-embossed)	AR91.60-P-0661ME
		Model 213, 238 with code L5C (Supersport steering wheel-leather deep-embossed)	AR91.60-P-0660LW
		Model 257 with code L5C (Supersport steering wheel-leather deep-embossed)	AR91.60-P-0660FR
		Model 118, 243 as of model year 2023 with code L5C (Supersport steering wheel-leather deep-embossed) Model 177, 247 as of model year 2022 with code L5C (Supersport steering wheel-leather deep-embossed)	AR91.60-P-0663MFD
2	Remove bolts (1).
3	Remove mounting plate (2), and release and disconnect electrical connector (3).
4	Remove washers of screws (1).	If washers are installed.
5	Release and disconnect electrical connector at steering column tube module control unit (N80).
6	Remove screws (4) and unclip cover (5).
7	Unscrew screws (6) and remove lower cover (7).
8	Unscrew screws (8), release and disconnect electrical connectors of steering wheel electronics (N135), and remove steering wheel electronics (N135).	Do not crush or kink or subject electric lines to tension. This will result in damage to the electric lines and can impair their function. If lower washers are installed, observe installation position of lower washers.
9	Unclip hand detection system control unit (N179) from steering wheel electronics (N135), release and disconnect electrical connectors.	Model 118, 167, 177, 213, 238, 243, 247, 257 with code 266 (DISTRONIC PLUS with Cross-Traffic Assist (DTR+Q)) with code L5C (Supersport steering wheel-leather deep-embossed) Do not crush or kink or subject electric lines to tension. This will result in damage to the electric lines and can impair their function.
	Install
10	Connect and lock electrical connectors, and install hand detection system control unit (N179) in steering wheel electronics (N135).	Model 118, 167, 177, 213, 238, 243, 247, 257 with code 266 (DISTRONIC PLUS with Cross-Traffic Assist (DTR+Q)) with code L5C (Supersport steering wheel-leather deep-embossed) Do not crush or kink or subject electric lines to tension. This will result in damage to the electric lines and can impair their function. Ensure that the electrical connectors are engaged correctly.
11	Connect and lock electrical connectors of steering wheel electronics (N135), install steering wheel electronics (N135), and screw in screws (8).	Do not crush or kink or subject electric lines to tension. This will result in damage to the electric lines and can impair their function. Ensure that the electrical connectors are engaged correctly. Ensure that routing of lines is correct. If lower washers are installed, observe installation position of lower washers. Model 167 with code L5C (Supersport steering wheel-leather deep-embossed) Screw, front cover to steering wheel	*BA46.10-P-1004-02G
		Model 213, 238, 257 with code L5C (Supersport steering wheel-leather deep-embossed) Screw, front cover to steering wheel	*BA46.10-P-1004-02J
		Model 118, 177, 243, 247 with code L5C (Supersport steering wheel-leather deep-embossed) Bolt, front cover to steering wheel	*BA46.10-P-1003-02F
12	Install lower cover (7) and screw in screws (6).	Model 167 with code L5C (Supersport steering wheel-leather deep-embossed) Screw, front cover to steering wheel	*BA46.10-P-1004-02G
		Model 118, 177, 243, 247 with code L5C (Supersport steering wheel-leather deep-embossed) Bolt, front cover to steering wheel	*BA46.10-P-1003-02F
		Model 213, 238, 257 with code L5C (Supersport steering wheel-leather deep-embossed) Screw, front cover to steering wheel	*BA46.10-P-1004-02J
13	Install cover (5) and screw in screws (4).	Model 167 with code L5C (Supersport steering wheel-leather deep-embossed) Screw, front cover to steering wheel	*BA46.10-P-1004-02G
		Model 118, 177, 243, 247 with code L5C (Supersport steering wheel-leather deep-embossed) Bolt, front cover to steering wheel	*BA46.10-P-1003-02F
		Model 213, 238, 257 with code L5C (Supersport steering wheel-leather deep-embossed) Screw, front cover to steering wheel	*BA46.10-P-1004-02J
14	Connect and lock electrical connectors from steering column tube module control unit (N80).	Ensure correct engagement of electrical connector.
15	Check line routing of electrical wiring harness in steering wheel.	Model 118, 177, 247 with code L5C (Supersport steering wheel-leather deep-embossed) except code U88 (AMG steering wheel buttons (AMG DRIVE UNIT)) Model 167, 213, 238, 243, 257 with code L5C (Supersport steering wheel-leather deep-embossed)	AR82.90-P-0101-01FRD
16	Install washers of screws (1).	If washers are installed.
17	Install mounting plate (2), connect electrical connector (3).	Make sure that the electrical connector (3) engages correctly.
18	Screw in screws/bolts (1).	Model 167 with code L5C (Supersport steering wheel-leather deep-embossed) Screw, mounting plate/contact plate to steering wheel	*BA46.10-P-1003-02G
		Model 118, 177, 243, 247 with code L5C (Supersport steering wheel-leather deep-embossed) Screw, mounting plate/contact plate to steering wheel	*BA46.10-P-1002-02F
		Model 213, 238, 257 with code L5C (Supersport steering wheel-leather deep-embossed) Screw, mounting plate/contact plate to steering wheel	*BA46.10-P-1002-02J
19	Install driver's airbag at steering wheel.	Model 118, 243 as of model year 2023 with code L5C (Supersport steering wheel-leather deep-embossed) Model 177, 247 as of model year 2022 with code L5C (Supersport steering wheel-leather deep-embossed)	AR91.60-P-0663MFD
		Model 213, 238 with code L5C (Supersport steering wheel-leather deep-embossed)	AR91.60-P-0660LW
		Model 257 with code L5C (Supersport steering wheel-leather deep-embossed)	AR91.60-P-0660FR
		Model 167 with code L5C (Supersport steering wheel-leather deep-embossed)	AR91.60-P-0661ME
20	Connect vehicle diagnosis system and perform commissioning.	When replacing steering wheel electronics (N135).
		Model 167 with code L5C (Supersport steering wheel-leather deep-embossed)	AD00.00-P-2000-06ME
		Model 118, 177, 243, 247 with code L5C (Supersport steering wheel-leather deep-embossed)	AD00.00-P-2000-06MFA
		Model 238 with code L5C (Supersport steering wheel-leather deep-embossed)	AD00.00-P-2000-06LWO
		Model 213 with code L5C (Supersport steering wheel-leather deep-embossed)	AD00.00-P-2000-04B
		Model 257 with code L5C (Supersport steering wheel-leather deep-embossed)	AD00.00-P-2000-06FR
21	Perform function test of steering wheel buttons.