Remove/install cruise control switch - AR54.25-P-2803V

MODEL 171.4 with CODE (440a) Cruise control 

Fig 1: Identifying Cruise Control Switch Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove steering angle sensor		AR46.10-P-0300V
2	Detach combination switch (S4) from the carrier plate (1) of the cruise control pushbutton switch (S40/4)		AR54.25-P-2800V
3	Install in the reverse order
4	Carry out function check of cruise control pushbutton switch (S40/4)