Engine Electrical System - Repair - R55 (N12)

• Troubleshooting
  • 12 00... Instructions for disconnecting and connecting battery
  • 12 00... Instructions for working on the ignition system
  • 12 00... Notes/information on removing and installing control units
  • 12 00... Notes/information on start assistance (jump starting)
  • 61 00... Notes on handling wiring harnesses and cables
  • 61 20...Battery replacement information
• Ignition Wires, Spark Plugs
  • 12 12 011 Replacing all spark plugs (N12)
• Ignition Coil
  • 12 13 511 Replacing ignition coils (N12)
• Electronic Switching Or Control Unit
  • 12 14 521 Replacing pulse generator on crankshaft (N12, N14)
  • 12 14 523 Replacing pulse generator on inlet camshaft (N12)
  • 12 14 524 Replacing pulse generator on exhaust camshaft (N12)
  • 12 14 550 Replacing control unit (DME)
  • 12 14 600 Replacing knock sensor (N12, N14)
  • 12 14 700 Coding control module (DME / DDE)
  • 12 14 705 Programming control unit (DME / DDE)
  • 12 63 520 Replacing DME master relay (N12, N14)
• Alternator With Drive And Mounting
  • 12 31... Replacing alternator belt pulley (with overrunning clutch)
  • 12 31 009 Checking alternator (BSD)
  • 12 31 020 Removing and installing or replacing alternator (N12, N14)
• Controller
  • 12 32 501 Replacing regulator switch for alternator (N12, N14)
• Starter With Mounting
  • 12 41 020 Removing and installing/replacing starter motor (N12)
  • 12 41 041 Replacing solenoid switch
• Starter Lead
  • 12 42 500 Replacing battery positive lead (between starter, alternator and battery positive terminal)
• Engine Wiring Loom
  • 12 51 001 Replacing wiring harness section for engine (N12)
• Oil Pressure/Oil Temperature Gauge
  • 12 61 280 Removing and installing/replacing oil pressure sensor (N12)
• Coolant Temperature
  • 12 62 500 Replacing coolant temperature sensor (N12)
• Switches And Relays
  • 12 63 520 Replacing DME master relay (N12, N14)