Engine Electrical System - Repair

• 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
  • 00 Safety information for working on vehicles with automatic engine start-stop function (MSA)
    • Notes
    • Observe safety precautions when working on MSA vehicles
    • MSA function is deactivated by
    • When working with diagnosis tools
• Ignition Wires, Spark Plugs
  • 12 12 011 Replacing all spark plugs (N53, N54, N54T, N63)
• Ignition Coil
  • 12 13 Carrying out engine cleaning (N54, N54T, N53, N43)
  • 12 13 511 Replacing ignition coils (N54, N54T, N53, N43)
• Electronic Switching
  • 12 14 521 Replacing crankshaft pulse generator (N54, N54T)
  • 12 14 523 Replacing pulse generator on inlet camshaft (N54, N54T)
  • 12 14 524 Replacing pulse generator on exhaust camshaft (N54, N54T)
  • 12 14 550 Replacing control unit (DME)
  • 12 14 600 Removing/replacing knock sensors (N54, N54T, N53)
  • 12 14 650 Replacing suction pressure sensor on intake air manifold (N54, N54T)
  • 12 14 651 Replacing suction pressure sensor on charge-air duct (N54, N54T)
  • 12 14 700 Coding control module (DME/DDE)
  • 12 14 705 Programming control unit (DME/DDE)
• Alternator With Drive
  • 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 (N54, N54T)
• Regulator
  • 12 32 501 Replacing voltage regulator
• Starter With Mounting
  • 12 41 020 Removing and installing/replacing starter (N54, N54T, N55)
  • 12 41 041 Replacing solenoid switch
• Starter Lead
  • 12 42 500 Replacing battery positive lead (between starter, alternator and battery positive terminal)
  • 12 42 540 Replacing safety battery terminal (SBK)
• Engine Wiring Loom
  • 12 51 001 Replacing wiring harness section for engine (N54, N54T)
  • 12 51 100 Replacing wiring harness section for ignition coil (N54, N54T)
• Oil Pressure, Oil Temperature
  • 12 61 280 Removing and installing/replacing oil pressure sensor (N52, N52K, N51, N54, N54T, N53)
  • 12 61 285 Replacing engine oil level sensor (N52, N52K, N51, N46, N54, N54T, N53)
• Control Unit Box
  • 12 90... Removing and installing/replacing electronics box
  • 12 90 100 Replacing fan for electronics box