Engine Electrical System - Repair Instructions

• Troubleshooting
  • 12 00 Contents of Engine Electrical System General
  • 12 00 ... Breakerless ignition distribution
  • 12 00... Component inspection:
  • 12 00 ... Disconnecting and connecting battery
  • 12 00 ... External jump-starting aid
  • 12 00 ... External jump-starting aid and car telephone!
  • 12 00 ... Instructions for disconnecting and connecting battery
  • 12 00 ... Disconnecting And Connecting Test Equipment
  • 12 00 ...Welding Work (Overload Protection Of Control Units)
  • 12 00 ... Working instructions for ignition system, DME (digital motor electronics) and engine electrics
  • 12 00 ... Working instructions for removing and installing electronic control unit
  • 12 13 Notes on checking ignition system
• Ignition Wires, Spark
  • 12 12 011 Replacing all spark plugs
• 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 rod-type ignition coils (M54, M56, N40, N42, N45, N46, N52, N62, N73)
  • 12 13 511 Replacing ignition coil (M52, M52TU, S52, S50US, M54)
  • 12 13 520 Replacing a spark plug connector (M60, M62, M54)
• Electronic Switching
  • 12 14 521 Replacing pulse generator on crankshaft (M54/M56)
  • 12 14 523 Replacing pulse generator on inlet camshaft (M52TU / M54 / M56)
  • 12 14 524 Replacing pulse generator on exhaust camshaft (M52TU, M54, M56)
  • 12 14 550 Replacing control unit (M54 / S54)
  • 12 14 600 Replacing knock sensor (M52TU, M54, M56)
  • 12 14 700 Coding control module (DME / DDE)
  • 12 14 705 Programming control unit (DME / DDE)
  • 12 63 520 Replacing main relay (M54 / S54)
  • 61 35... Note on replacing codable/programmable control units
• Alternator With Drive
  • 12 31 ... Replacing alternator belt pulley
  • 12 31 009 Checking alternator and regulator switch
  • 12 31 020 Removing and installing or replacing alternator (M52, M52TU, S50US, S52, M54, M56)
  • 12 31 695 Replacing diode plate (Motorola alternator)
• Regulator
  • 12 32 501 Replacing voltage regulator
  • 12 32 501 Replacing voltage regulator (Valeo/Bosch)
• Starter with mounting
  • 12 41 020 Removing and installing/replacing starter motor (Z3 / M54)
  • 12 41 041 Replacing solenoid switch
• Starter Lead
  • 12 42 510 Replacing battery positive lead Z3 M54 (between starter motor and B+ support point)
  • 12 42 540 Replacing safety battery terminal (SBK)
• Engine Wiring Loom
  • 12 51 100 Replacing wiring harness section for ignition coils (M54)
• Oil Pressure-oil temperature
  • 12 61 250 Removing and installing/replacing oil temperature switch (M52TU, M54, M56)
  • 12 61 280 Removing and installing/replacing oil pressure switch (M52TU, M54, M56)
  • 12 61 285 Replacing level switch for engine oil (M62, M54, S54, M56)
  • 12 61 285 Replacing level switch for engine oil (Z3 M54)
• Switch and Relays
  • 12 63 520 Replacing main relay (M54 / S54)