Engine Electrical System - Repair

• 00 troubleshooting
  • 12 00 ... Instructions for disconnecting and connecting battery
  • 12 00... Instructions for removing and installing electronic control units
  • 12 13 Notes on checking ignition system
• 12 ignition wires, spark plugs
  • Firing Order
  • 12 12 011 Replacing all spark plugs (N42, N40, N46, N45, N52, N52K, N51)
• 13 ignition coil
  • 12 13 Notes on checking ignition system
  • 12 13 511 Replacing ignition coils (N52, N52K, N51)
  • 12 13 009 Checking Rod-Type Ignition Coils (M54, M56, N40, N42, N43, N45, N46, N52, N62, N62TU, N73)
• 14 electronic switching or control unit
  • 12 14 521 Replacing crankshaft pulse generator (N52, N52K, N51, N53)
  • 12 14 523 Replacing inlet camshaft pulse generator (N52, N52K, N51, N53)
  • 12 14 524 Replacing exhaust camshaft pulse generator (N52, N52K, N51, N53)
  • 12 14 600 Removing/replacing knock sensors (N52, N52K, N51)
  • 12 14 700 Coding control module (DME / DDE)
  • 12 14 705 Programming control unit (DME / DDE)
• 31 alternator with drive and mounting
  • 12 31... Replacing alternator belt pulley
  • 12 31 ... Replacing alternator belt pulley (with overrunning clutch)
  • 12 31 009 Checking alternator (BSD)
  • 12 31 020 Removing and installing or replacing alternator (N52, N52K, N51, N53)
• 32 regulator
  • 12 32 501 Replacing voltage regulator
• 41 starter with mounting
  • 12 41 020 Removing and installing/replacing starter (N52, N52K, N51, N53, N54)
  • 12 41 041 Replacing solenoid switch
• 61 oil pressure-oil temperature gauge
  • 12 61 280 Removing and installing/replacing oil pressure sensor (N52, N52K, N51, N54, N53)
  • 12 61 285 Replacing engine oil level sensor (N52, N52K, N51, N46, N54, N53)