Section 28 (Engine Electrical System - Repair Instructions - X5 (4.6L))

• Troubleshooting
  • 12 000 Contents of Engine Electrical System General
    • Working On Ignition System
    • Removing And Installing Electronic Control Units
    • Welding Work (Overload Protection Of Control Units)
    • Disconnecting And Connecting Battery
    • Disconnecting And Connecting Test Equipment
    • Component Inspection
    • External Jump-Starting Aid
      • Notes
      • Preparation
      • Carrying Out
    • Compression Testing
  • 12 00... Instructions for disconnecting and connecting battery
  • 12 13 Notes on checking ignition system
    • Troubleshooting
      • Fault In Fuel Injection System
      • Spark-Plug Faults
      • Ignition Coil Faults
      • Further Fault Patterns With Evaluation
      • Additional Fault Notes For Troubleshooting
    • Oscillograms
      • Normal Oscillogram (M, S, W Engines Only)
      • Oscillograms of ignition coils from different manufacturers
    • 12 13 ... Checking Secondary Signal For Stationary Ignition Distribution
      • Special tools required:
      • Engine Test Step 10
• Ignition wires spark
  • 12 12 011 Replacing all spark plugs (M60, M62)
• 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 13 009 Checking ignition coils (M60, M62, S62)
  • 12 13 009 Checking ignition coils (secondary coil)
    • Special tools required:
    • Secondary Voltage Check
  • 12 13 511 Replacing ignition coil (M60, M62)
  • 12 13 520 Replacing a spark plug connector (M60, M62, M54)
• Electronic switching
  • 12 14 521 Replacing pulse generator (M62)
    • Special tools required:
    • Removal & Installation
  • 12 14 522 Replacing pulse generator on left inlet camshaft (M62)
  • 12 14 526 Replacing pulse generator on right inlet camshaft (M62)
  • 12 14 550 Replacing control unit (Digital Motor Electronics) (M62, M54)
  • 12 14 610 Replacing right knock sensors (cylinder bank 1 to 4) (M60, M62)
  • 12 14 611 Replacing left knock sensors (cylinder bank 5 to 8) (M62)
  • 12 14 700 Coding control module (DME/DDE)
  • 12 14 705 Programming control unit (DME/DDE)
  • 12 63 520 Replacing main relay (M62, M54)
  • 61 35... Note on replacing codable/programmable control units
• Alternator with drive
  • 12 31... Replacing alternator belt pulley
    • Special tools required:
    • Removal & Installation
  • 12 31 009 Checking alternator and regulator switch
  • 12 31 020 Removing and installing/replacing alternator (M62)
• Regulator
  • 12 32 501 Replacing voltage regulator (Valeo/Bosch)
    • Notes
    • Valeo Alternator
    • Bosch Alternator
• Starter with mounting
  • 12 41 020 Removing and installing/replacing starter motor (M62)
  • 12 41 041 Replacing solenoid switch
• Starter lead
  • 12 42 500 Removing and installing or replacing battery positive lead (between starter motor, alternator and battery positive support point) (M62)
  • 12 42 540 Replacing safety battery terminal (SBK)
• Engine Wiring Loom
  • 12 51 001 Replacing wiring harness section for engine (M62)
• Oil Pressure - Oil Temperature
  • 12 61 280 Removing and installing/replacing oil pressure switch (M62)
  • 12 61 285 Replacing level switch for engine oil (M62, M54, S54, M56)
• Switches and relays
  • 12 63 520 Replacing main relay (M62, M54)
• Sensor for Control unit
  • 12 72 520 Removing and installing/replacing pedal travel sensor (M62, M54)