Engine Electrical System - Repair Instructions

• Troubleshooting
  • 12 00 Contents of Engine Electrical System General
  • 12 00 ... Instructions for disconnecting and connecting battery
  • 12 00 ... Information on working on ignition system
  • 12 00 ... Instructions for removing and installing electronic control units
  • 12 00 ... Instructions for welding work (overload protection of control units)
  • 12 00 ... Instructions for connecting and disconnecting test units
  • 12 00 ... Instructions on component testing
  • 12 00 ... Instructions on external starting aid
  • 12 13 Notes on checking ignition system
• Ignition Wires, Spark Plugs
  • 12 12 011 Replacing all spark plugs (S62)
• Ignition Coil
  • 12 13 Notes on checking ignition system
  • 12 13 ... Checking secondary signal for stationary ignition distribution
  • 12 13 ... Normal oscillogram (M, S, W engines only)
  • 12 13 ... Oscillograms of ignition coils from different manufacturers
  • 12 13 ... Fault in fuel injection system
  • 12 13 ... Spark-Plug Faults
  • 12 13 ... Ignition Coil Faults
  • 12 13 ... Further Fault Patterns With Evaluation
  • 12 13 ... Additional Fault Notes For Troubleshooting
  • 12 13 009 Checking ignition coils (M60, M62, S62)
  • 12 13 009 Checking ignition coils (secondary coil)
  • 12 13 511 Replacing ignition coil (S62)
• Electronic Switching Or Control Unit
  • 12 14 520 Replacing pulse generator (M62)
  • 12 14 523 Replacing pulse generator for inlet camshaft (S62)
  • 12 14 524 Replacing pulse generator for exhaust camshaft (S62)
  • 12 14 550 Replacing control unit (DME) (S62)
  • 12 14 610 Replacing right knock sensors (cylinder bank 1-4) (S62)
  • 12 14 611 Replacing left knock sensors (cylinder bank 5-8) (S62)
  • 12 14 700 Coding control module (DME/DDE)
  • 12 14 705 Programming control unit (DME/DDE)
  • 12 63 520 Replacing main relay (S62, M54)
  • 12 72 010 Removing and installing/replacing throttle actuator (S62)
  • 13 63 555 Replacing throttle potentiometer (S62)
  • 61 35 ... Note on replacing codable/programmable control units
• Alternator With Drive
  • 12 31 ... Replacing alternator belt pulley
  • 12 31 020 Removing and installing/replacing alternator (S62)
• Regulator
  • 12 32 501 Replacing voltage regulator (Valeo/Bosch)
• Starter With Mounting
  • 12 41 020 Removing and installing/replacing starter (S62)
  • 12 41 041 Replacing solenoid switch
• Starter Lead
  • 12 42 500 Removing and installing or replacing battery positive lead (S62)
  • 12 42 540 Replacing safety battery terminal (SBK)
• Engine Wiring Loom
  • 12 51 001 Replacing wiring harness section for engine (S62)
• Oil Pressure/Oil temperature Switch
  • 12 61 280 Removing and installing/replacing oil pressure switch (S62)
  • 12 61 285 Replacing level switch for engine oil
• Coolant Temperature
  • 12 62 500 Replacing coolant temperature sensor (DME) (S62)
• Switches and relays
  • 12 63 500 Replacing temperature sensor for electronics box (S62)
  • 12 63 520 Replacing main relay (S62, M54)
  • 12 72 010 Removing and installing/replacing throttle actuator (S62)
• Sensor For Control Unit
  • 12 72 010 Removing and installing/replacing throttle actuator (S62)
  • 12 72 520 Removing and installing/replacing pedal travel sensor (S62)