Disconnect cables from control units and fuse and relay boxes - AR54.18-P-1261-01P

Coupling with locked release clip.

1. 1.1 Press down locking lug (1).
2. 2.1 Move release clip (2) towards arrow until it locks into the disengaged position.
3. 3.1 Disconnect coupling.
   Fig 1: Identifying Locking Lug And Clip

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Coupling with two locks

1. 1.2 Press in catches (arrows).
2. 2.2 Disconnect coupling.
   Fig 2: Locating Coupling Catches - Two Locks

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Coupling with one lock.

1. 1.3 Press in catch (arrow).
2. 2.3 Disconnect coupling.
   Fig 3: Locating Coupling Catches - One Lock

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Coupling without lock.

1. 1.4 Disconnect coupling.
   Fig 4: Locating Coupling Catches - Without Lock

   Courtesy of MERCEDES-BENZ USA