Remove/Install Button Groups On Multifunction Steering Wheel - AR82.90-P-0014WTF

Model 206, 236, 294, 295 

with code U88 (AMG steering wheel buttons (AMG DRIVE UNIT)) except code L5C (Supersport steering wheel - leather deep-embossed) 

Model 223 

with code U88 (AMG steering wheel buttons (AMG DRIVE UNIT)) 

except code L2B (Leather luxury steering wheel) 

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

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

except code L5D (Supersport steering wheel - leather with trim element) 

Model 254 

with code U88 (AMG steering wheel buttons (AMG DRIVE UNIT)) 

except code L3E (Sport steering wheel - smooth split leather) 

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

Courtesy of MERCEDES-BENZ USA

Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Remove steering wheel electronics with button group 1 for lower multifunction steering wheel (S163/3) and button group 2 for lower multifunction steering wheel (S163/4).		AR82.90-P-0100WTF
2	Unclip multifunction steering wheel button group 1 (S163/1) and multifunction steering wheel button group 2 (S163/2).	Long wedge	Fig 1
3	Release and disconnect electrical connector, and remove multifunction steering wheel button group 1 (S163/1) and 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. Ensure that routing of lines is correct. Ensure that the electrical connectors are engaged correctly.
		Replace multifunction steering wheel button group 1 (S163/1) and multifunction steering wheel button group 2 (S163/2) as a complete set only.
4	Install in the reverse order.

Fig 1: Identifying Long Wedge (115 589 03 59 00)

Courtesy of MERCEDES-BENZ USA