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

Model 223 

with code L2B (Leather luxury steering wheel) 

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

Model 223 

with code L2D (Luxury leather steering wheel with trim element) 

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

Model 296, 297 

with code L2B (Leather luxury steering wheel) 

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

Shown on steering wheel with code 266 (Distronic Plus transverse support (DTR+Q)) 

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 cover with multifunction steering wheel button group 1 (S163/1), multifunction steering wheel button group 2 (S163/2).	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.	AR82.90-P-0014SA
2	Release and disconnect electrical connector at steering column tube module control unit (N80).
3	Unclip steering wheel electronics (N135).	If lower washers are installed, observe installation position of lower washers.
4	Unclip hand detection system control unit (N179) from steering wheel electronics (N135), release and disconnect electrical connectors (3).	Model 223 with code 266 (DISTRONIC PLUS with Cross-Traffic Assist (DTR+Q)) with code L2B (Leather luxury steering wheel) except code L5C (Supersport steering wheel - leather deep-embossed) Model 223 with code 266 (DISTRONIC PLUS with Cross-Traffic Assist (DTR+Q)) with code L2D (Luxury leather steering wheel with trim element) except code L5C (Supersport steering wheel - leather deep-embossed) Model 296, 297 with code 266 (DISTRONIC PLUS with Cross-Traffic Assist (DTR+Q)) with code L2B (Leather luxury steering wheel) except code L5C (Supersport steering wheel - leather deep-embossed)
	Install
5	Connect and lock electrical connectors (3) and install hand detection system control unit (N179) in steering wheel electronics (N135).	Model 223 with code 266 (DISTRONIC PLUS with Cross-Traffic Assist (DTR+Q)) with code L2B (Leather luxury steering wheel) except code L5C (Supersport steering wheel - leather deep-embossed) Model 223 with code 266 (DISTRONIC PLUS with Cross-Traffic Assist (DTR+Q)) with code L2D (Luxury leather steering wheel with trim element) except code L5C (Supersport steering wheel - leather deep-embossed) Model 296, 297 with code 266 (DISTRONIC PLUS with Cross-Traffic Assist (DTR+Q)) with code L2B (Leather luxury steering wheel) except code L5C (Supersport steering wheel - leather deep-embossed) Ensure that electrical connectors (3) engage correctly.
6	Install steering wheel electronics (N135).	If lower washers were installed, observe installation position of lower washers.
7	Connect electrical connector at steering column tube module control unit (N80).	Ensure correct engagement of electrical connector.
8	Install cover with multifunction steering wheel button group 1 (S163/1), multifunction steering wheel button group 2 (S163/2).	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.	AR82.90-P-0014SA
9	Connect vehicle diagnosis system and perform commissioning.	When replacing steering wheel electronics (N135).
			AD00.00-P-2000-06FR
10	Perform function test of steering wheel buttons.