Engine Electrical System - Repair Instructions - X5 (4.4L)

• Troubleshooting
  • 12 00 Contents of Engine Electrical System General
  • 12 00 ... Instructions for disconnecting and connecting battery
    • Notes
    • Before Disconnecting Battery:
    • General Notes On Disconnecting Battery:
    • After Connecting Battery:
    • Vehicles With A Two-Battery System
  • 12 13 Notes on checking ignition system
• Ignition Wires, Spark Plugs
  • 12 12 011 Replacing all spark plugs (M60, M62)
    • Notes
    • Installation:
• Ignition Coil
  • 12 13 Notes on checking ignition system
  • 12 13 ...Checking secondary signal for stationary ignition distribution
    • Notes
    • Removal & Installation
  • 12 13 ... Normal oscillogram (M, S, W engines only)
  • 12 13 009 Checking ignition coils (M60, M62, S62)
    • Notes
    • Acoustic Cover Version 1:
    • Acoustic Cover Version 2:
    • Installation:
    • E53
    • M60, M62:
    • M60, M62, S62:
  • 12 13 009 Checking ignition coils (secondary coil)
    • Notes
    • Preliminary Procedures
    • Version With Single-Spark Ignition Coils:
    • Version With Rod-Type Ignition Coils:
    • Version With Ignition Coil Block:
  • 12 13 511 Replacing ignition coil (M60, M62)
    • Notes
    • Version 1:
    • Version 2:
    • Installation:
    • Version 3 (E53):
    • E53:
  • 12 13 520 Replacing a spark plug connector (M60, M62, M54)
• Electronic Switching Or Control Unit
  • 12 14 521 Replacing pulse generator (M62)
    • Notes
    • Removal
    • Installation:
  • 12 14 522 Replacing pulse generator on left inlet camshaft (M62)
    • Notes
    • Installation:
  • 12 14 526 Replacing pulse generator on right inlet camshaft (M62)
    • Notes
    • Installation:
  • 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)
    • Notes
    • Installation:
  • 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 and Mount
  • 12 31 ... Replacing alternator belt pulley
    • Notes
    • Removal
  • 12 31 009 Checking alternator and regulator switch
    • Notes
    • Connect DIS Tester.
    • Oscillogram for a fault-free alternator:
    • Oscillogram For A Faulty Alternator:
  • 12 31 020 Removing and installing/replacing alternator (M62)
    • Notes
    • Recycling
    • Installation:
• 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)
    • Notes
    • Installation:
  • 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)
    • Notes
    • Installation:
  • 12 42 540 Replacing safety battery terminal (SBK)
    • Notes
    • Battery In Engine Compartment
    • Battery In Luggage Compartment Behind Side Trim Panel
    • Battery In Luggage Compartment Under Floor Trim Panel
    • Battery In Luggage Compartment Under Spare Wheel
    • Installation:
• Engine Wiring Loom
  • 12 51 001 Replacing wiring harness section for engine (M62)
    • Notes
    • Installation:
• Oil Pressure/Oil Temperature Gauge
  • 12 61 280 Removing and installing/replacing oil pressure switch (M62)
    • Notes
    • Installation:
  • 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)