Retrofit release lever - AN31.11-P-8080-06TA

TRAILER COUPLING MECHANICS

Number	Designation		Model 211 swing-away trailer control unit valve
BA31.11-P-1005-01C	Bolt, release lever to bracket	Nm	9

Pull out cable (1) as far as the end stop and insert in the cutout (arrow) of the trailer connection unit control panel (A63/1).
Guide control cable (1) into bush (10) from behind.
The cable (1) must seat in the bushing as far as the end stop (10).
Connect 3-pin connector from release switch wiring harness (2) on rear of trailer connection unit operating unit (A63/1).

Fig 1: Identifying Cable Installation Position On Trailer Connection Unit Control Panel
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Mount trailer connection unit control panel (A63/1) on mounting console (14) as per picture and tighten to the specified torque with three bolts M6 x 55 (16).
Remove the shipping guard (arrow) between the crossmember and the swiveling ball neck.

Fig 2: Identifying Mount Trailer Connection Unit Control Panel, Mounting Console And Bolts
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Locating Shipping Guard Between Crossmember And Swiveling Ball Neck
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Install the cable (1) in the bracket's holder (60).

Fig 4: Identifying Cable Installation Position In Bracket Holder

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.