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Home >> Mercedes Benz >> 2025 >> S580 >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Electrical System -- Engine -- 223 Chassis >> Testing & Repair >> Disconnect/Connect Engine Wiring Harness To Remove Engine >> Disconnect/Connect Engine Wiring Harness To Remove Engine - AR15.18-P-1000-05SC

Disconnect/Connect Engine Wiring Harness To Remove Engine - AR15.18-P-1000-05SC

Engine 176 in model 223 

Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on safety-relevant components   AH00.00-Z-0019-01A
48 V ON-BOARD ELECTRICAL SYSTEM SUBHARNESS

Number Designation Engine 176 in model 223
BA15.18-P-1004-03D Nut, 48 V subharness to refrigerant compressor/electric motor/firewall Nm 16
48 V ON-BOARD ELECTRICAL SYSTEM SUBHARNESS

Number Designation Engine 176 in model 223
BA15.18-P-1005-03D Nut, 48 V subharness to body Nm 8
G16227557Courtesy of MERCEDES-BENZ USA
  1. Release and disconnect electrical connectors (1).
  2. Remove electrical wiring harness from cable duct (8) and fix in place on vehicle with suitable means.
  3. Open covers (2).
  4. Remove nuts (3) TORQUE SPECIFICATION .
  5. Remove electric lines of 48 V on-board electrical system from stud bolts.
  6. Remove screw (7).
  7. Remove cable duct (8) and holder (9) from vehicle and fix in place on engine with suitable means.
    G16227558Courtesy of MERCEDES-BENZ USA
    G16227559Courtesy of MERCEDES-BENZ USA
  8. Remove covers and remove nuts (6) TORQUE SPECIFICATION .
  9. Remove electric lines from stud bolts.
  10. Release and disconnect electrical connector (4).
  11. Detach electrical wiring harness (5) from transmission.
  12. Connect in reverse order.