Disconnect engine wiring harness - AR01.00-P-2410-02VB

To remove the engine 

1. Unclip electrical connectors (G3/3x1, G3/4x1, G3/5x1, G3/6x1) and electrical lines for O2 sensors out of retaining clamps.
2. Disconnect electrical connector (G3/3x1, G3/4x1, G3/5x1, G3/6x1) for O2 sensors.
3. Detach the heat shield (1) and disconnect plug (2) from the automatic transmission.
   Fig 1: Identifying Engine Wiring Harness (1 Of 6)

   Courtesy of MERCEDES-BENZ USA
4. Release plug (3) and disconnect from the ME-SFI [ME] control unit (N3/10).
5. Disconnect electrical connectors (4, 5)
6. Loosen engine wiring harness and place aside.
7. Detach ground line (6) from longitudinal member.
8. Remove nut (7) and electrical line for circuit 30 (8) for battery (G1).
9. Loosen nut (9) and remove electrical line for circuit 30 (10) from battery (G1).
   Fig 2: Identifying Engine Wiring Harness (2 Of 6)

   Courtesy of MERCEDES-BENZ USA
10. Detach sealing (11) from partition wall and lay engine wiring harness on cylinder head cover.