Remove/install contact spring for automatic function of shift module - AR26.60-P-0633SM

TRANSMISSION 717.407 /408 /409 /476 in MODELS 450.3 /4 

TRANSMISSION 717.4 in MODEL 451.3 /4 except CODE (494) USA version 

Shown on model 450 

Fig 1: Identifying Shift Lever Knob And Shift Lever Knob Automatic Function (Shown On Model 450)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Illustrated on model 450 

Fig 2: Identifying Electronic Selector Lever Module Control Unit And Automatic Function Microswitch

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
1	Pull off shift lever knob (1) carefully in direction of arrow	Do not operate shift lever knob for automatic function (2) while pulling off, otherwise the contact spring (3) or automatic function microswitch (4) will be damaged.
2	Unhook contact spring (3) on automatic function microswitch (4)
	Checking
3	Check contact spring (3) for damage	Replace contact spring (3) if damaged.
4	Check attachment point (arrow) on left and right of automatic function microswitch (4)	See magnified section A. If the attachment point (arrow) on left or right on automatic function microswitch (4) is damaged, the electronic selector lever module control unit is damaged (N15/5). See: ↓ Remove/install shift module
		Model 450.3/4
		Model 451.3/4
5	Install in the reverse order