Engine Electrical System - Repair - E90

• Troubleshooting
  • 61 20... Battery replacement information
  • 12 00... Instructions for disconnecting and connecting battery
  • 12 00... Instructions for working on the ignition system
  • 12 13 Notes on checking ignition system
  • 61 00... Notes on handling wiring harnesses and cables
  • 12 00... Notes/information on removing and installing control units
  • 12 00... Notes/information on start assistance (jump starting)
  • 00 Safety information for working on vehicles with automatic engine start-stop function (MSA)
• Ignition Wires, Spark Plugs
  • 12 12 011 Replacing all spark plugs (S65)
• Ignition Coil
  • 12 13 Notes on checking ignition system
  • 12 13 512 Removing and installing/replacing all ignition coils (S65)
• Electronic Switching
  • 12 14 700 Coding control module (DME/DDE)
  • 12 14 705 Programming control unit (DME/DDE)
  • 12 90... Removing and installing/replacing electronics box
  • 12 63 520 Replacing DME master relay (S65)
  • 12 14 550 Replacing control unit (DME) (S65)
  • 12 90 100 Replacing fan for electronics box
  • 13 62 610 Replacing pulse generator on crankshaft/transmission (S65)
  • 13 62 604 Replacing pulse generator on left exhaust camshaft (S65)
  • 13 62 601 Replacing pulse generator on left inlet camshaft (S65)
  • 13 62 605 Replacing pulse generator on right exhaust camshaft (S65)
  • 13 62 602 Replacing pulse generator on right inlet camshaft (S65)
  • 13 62 607 Replacing pulse generator on transmission (S65)
  • 13 62 029 Replacing suction pressure sensor on air intake manifold (S65)
  • 12 31 009 Checking alternator (BSD)
  • 12 31 020 Removing and installing or replacing alternator (S65)
  • 12 31... Replacing alternator belt pulley
  • 12 31... Replacing alternator belt pulley (with overrunning clutch)
• 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 (S65)
• Regulator
  • 12 32 501 Replacing voltage regulator
• Starter With Mounting
  • 12 41 020 Removing and installing/replacing starter (S65)
  • 12 41 041 Replacing solenoid switch
• Starter Lead
  • 12 42 510 Replacing battery positive lead (between starter and B+ terminal) (S65)
• Engine Wiring Loom
  • 12 51... Exchanging plug-in contact of coolant temperature sensor (S65)
  • 12 51 001 Replacing wiring harness section for engine (S65)
• Oil Pressure, Oil Temperature, Oil Gauge
  • 12 61 285 Removing and installing/replacing oil level sensor for engine oil (S65)
  • 12 61 280 Replacing oil pressure switch (S65)
• Switches And Relays
  • 12 63 520 Replacing DME master relay (S65)
• Control Unit Box
  • 12 90... Removing and installing/replacing electronics box
  • 12 90 100 Replacing fan for electronics box