Engine Electrical System - Repair

• Troubleshooting
  • 12 00... Instructions for disconnecting and connecting battery
    • Notes
    • Vehicles with a two-battery system
  • 12 13 Notes on checking ignition system
• Ignition, distributor
  • 12 11 094 Replacing both distributor caps (M 73)
  • 12 11 096 Replacing left distributor cap (M73)
  • 12 11 098 Replacing right distributor cap (M73)
  • 12 11 114 Replacing both distributor rotors (M73)
  • 12 11 116 Replacing left distributor rotor (M73)
  • 12 11 118 Replacing right distributor rotor (M73)
  • 12 11 206 Checking left distributor cap, ignition leads and ignition line connector (M73)
  • 12 11 208 Checking right distributor cap, ignition leads and ignition line connector (M73)
• Ignition wires, spark plugs
  • 12 12 011 Replacing all spark plugs (M73)
  • 12 12 036 Replacing all left ignition leads (M73)
  • 12 12 038 Replacing all right ignition leads (M73)
  • 12 12 072 Replace one spark plug connector (M40, M42, M43, M44, M73).
  • 12 12 151 Replacing one suppressor plug (M73)
• 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 (M73)
  • 12 13 009 Checking ignition coils (secondary coil)
  • 12 13 511 Replacing ignition coil (M73)
• Electronic Switching
  • 12 14 500 Removing and installing / replacing both control units (Digital Motor Electronics) (M73)
  • 12 14 518 Replacing impulse sensor (cylinder bank 7-12) (M73)
  • 12 14 519 Replacing impulse sensor (cylinder bank 1-6) (M73)
  • 12 14 525 Replacing sensor for cylinder recognition (camshaft sensor) (M73)
  • 12 14 700 Coding control module (DME / DDE)
  • 12 14 705 Programming control unit (DME / DDE)
  • 61 35... Note on replacing codable/programmable control units