Retrofit trailer coupling control unit - AN31.19-P-8080-05TA

1. Remove bracket (24).

   Only on vehicles without code (220) Parktronic system (PTS), without code (475) Tire pressure monitor (Beru), without code (527) COMAND APS (with navigation), without code (860) TV tuner and without code (889) Keyless Go.

2. Fit the trailer connection unit [AAG] control unit (N28/1) on the bracket (24) and secure with an M6 bolt (25) and an M6 nut.

   Only on vehicles without code (220) Parktronic system (PTS), without code (475) Tire pressure monitor (Beru), without code (527) COMAND APS (with navigation), without code (860) TV tuner and without code (889) Keyless Go.

3. Install bracket (24).

   Only on vehicles without code (220) Parktronic system (PTS), without code (475) Tire pressure monitor (Beru), without code (527) COMAND APS (with navigation), without code (860) TV tuner and without code (889) Keyless Go.

   Fig 1: Identifying Bracket, AAG Control Unit And Bolts

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
4. Fit the trailer connection unit [AAG] control unit (N28/1) on bracket (24) and secure it with an M6 nut (26).

Only on vehicles with code (220) Parktronic system (PTS), with code (475) Tire pressure monitor (Beru), with code (527) COMAND APS (with navigation), with code (860) TV tuner and with code (889) Keyless Go.

Fig 2: Identifying Bracket, AAG Control Unit And Nuts

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.