Open tailgate using emergency unlocking feature - AR72.20-P-3515MCC

MODEL 451.3 

Fig 1: Identifying Trim, Lug And Hook

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Shown with door paneling removed 

Fig 2: Identifying Hook And Relay Lever

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

1	Move left seat forward and fold backrest forward
2	Bend lug (2) on paneling (1) toward outside with suitable screwdriver
3	Carefully guide hook (3) in area of lug (2) behind paneling (1) and position above relay lever (4) (arrow A).
	Hook for emergency unlocking of rear-end door		WF58.50-P-7205-01MCC
4	Unlock rear-end door by moving hook (3) in direction of arrow	The hook (3) must press down the relay lever (4).
5	Bend lug (2) on paneling (1) back to its original position.
6	Move left seat back to its default position.