Engine Electrical System -- Repair (G22, G23 & G26) (1 Of 2)

• 12 00 Engine Electrical System
  • Instructions for removal and replacement of control units (4' Series coupe, convertible, and Gran Coupe sedan)
  • Notes on starting assistance (4' Series coupe, convertible, and Gran Coupe sedan)
• 12 12 Spark Plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing all spark plugs
    • Installing all spark plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing all spark plugs
    • Installing all spark plugs
• 12 13 Ignition Coils
  • 12 13 511 Replacing an ignition coil (after vehicle diagnosis) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the ignition coil
    • Install ignition coil
  • 12 13 511 Replacing an ignition coil (after vehicle diagnosis) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the ignition coil
    • Install ignition coil
• 12 14 Sensors
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 523 Replace intake camshaft sensor (after vehicle diagnosis) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
    • Remove camshaft position sensor of intake camshaft
    • Install camshaft position sensor of intake camshaft
  • 12 14 524 Replace exhaust camshaft sensor (after vehicle diagnosis) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
    • Remove the camshaft position sensor of the exhaust camshaft
    • Install the camshaft position sensor of the exhaust camshaft
  • 12 14 550 Replacing the Digital Motor Electronics control unit (after vehicle diagnosis) (4' Series coupe, convertible, and Gran Coupe sedan)
    • Removing the DME control unit
    • Installing the DME control unit
  • 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the knock sensors for cylinders 1 to 2
    • Installing the knock sensors for cylinders 1 to 2
  • 12 14 604 Replacing knock sensor (following vehicle diagnosis) (cylinders 3+4) (RWD) (430i coupe and Gran Coupe sedan)
    • Remove the knock sensors for cylinders 3 to 4
    • Install the knock sensors for cylinders 3 to 4
  • 12 14 700 Coding the control unit (DME/DDE) (4' Series coupe, convertible, and Gran Coupe sedan)
  • 12 14 705 Programming the control unit (DME/DDE) (4' Series coupe, convertible, and Gran Coupe sedan)
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 523 Replace intake camshaft sensor (after vehicle diagnosis) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Remove camshaft position sensor for the intake camshaft
    • Installing camshaft position sensor of intake camshaft
  • 12 14 524 Replace exhaust camshaft sensor (after vehicle diagnosis) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Remove the camshaft position sensor of the exhaust camshaft
    • Installing the camshaft position sensor of the exhaust camshaft
  • 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (RWD) (M440i coupe/convertible/Gran Coupe sedan)
    • Removing the knock sensor of cylinders 1 to 3
    • Installing knock sensor of cylinders 1 to 3
  • 12 14 604 Replacing knock sensor (following vehicle diagnosis) (cylinders 4+6) (RWD) (M440i coupe and Gran Coupe sedan)
    • Removing the knock sensor of cylinders 4 to 6
    • Installing the knock sensor of cylinders 4 to 6
  • 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (AWD) (M440i xDrive coupe/Convertible/Gran Coupe sedan)
    • Removing the knock sensor of cylinders 1 to 3
    • Installing knock sensor of cylinders 1 to 3
  • 12 14 604 Replacing knock sensor (following vehicle diagnosis) (cylinders 3+4) (AWD) (M440i xDrive coupe/Convertible/Gran Coupe sedan)
    • Removing the knock sensor of cylinders 4 to 6
    • Installing the knock sensor of cylinders 4 to 6
  • 12 14 604 Replacing knock sensor (following vehicle diagnosis) (cylinders 3+4) (RWD) (430i convertible)
    • Remove the knock sensors for cylinders 3 to 4
    • Install the knock sensors for cylinders 3 to 4
  • 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (RWD) (M440i convertible)
    • Removing the knock sensor of cylinders 1 to 3
    • Installing knock sensor of cylinders 1 to 3
  • 12 14 604 Replacing knock sensor (following vehicle diagnosis) (cylinders 3+4) (RWD) (M440i convertible)
    • Removing the knock sensor of cylinders 4 to 6
    • Installing the knock sensor of cylinders 4 to 6
• 12 31 Alternator
  • 12 31 020 Removing and installing/replacing alternator (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the alternator
    • Replacing the alternator
    • Installing the alternator
  • 12 31 020 Removing and installing/replacing alternator (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the alternator
    • When replacing the alternator: Remounting the belt tensioner of the alternator
    • Installing the alternator
  • 12 31 022 Removing and installing starter motor generator (RWD) (M440i coupe and Gran Coupe sedan)
    • Removing the starter motor generator
    • When replacing the starter motor generator: Remounting the belt tensioner of the starter motor generator
    • Installing the starter motor generator
  • 12 31 022 Removing and installing starter motor generator (AWD) (M440i xDrive coupe/Convertible/Gran Coupe sedan)
    • Removing the starter motor generator
    • When replacing the starter motor generator: Remounting the belt tensioner of the starter motor generator
    • Installing the starter motor generator
  • 12 31 022 Removing and installing starter motor generator (RWD) (M440i convertible)
    • Removing the starter motor generator
    • When replacing the starter motor generator: Remounting the belt tensioner of the starter motor generator
    • Installing the starter motor generator
• 12 35 Electric Powertrain
  • 12 35 521 Replace front highly-integrated electric drive topology completely (after vehicle diagnosis) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the strut
    • Remove high-voltage cable
    • Removing the coolant lines
    • Removing the left mounting bracket
    • Removing the right mounting bracket
    • Removing the electrical drive unit from the assembly jig
    • Attaching highly integrated electrified drive topology to the assembly jig
    • Installing the right mounting bracket
    • Installing the left mounting bracket
    • Installing the coolant lines
    • Install high-voltage cable
    • Installing the strut
  • 12 35 531 Replace rear highly-integrated electric drive topology completely (after vehicle diagnosis) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Preparing the special tool
    • Installing the electric drive unit in the rear axle support
  • 12 35 602 Replacing rotor position sensor (after vehicle diagnosis) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing rotor position sensor
    • Installing the rotor position sensor
  • 12 35 702 Replace rotor position sensor front (after vehicle diagnosis) (drive unit supported) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing rotor position sensor
    • Installing the rotor position sensor
  • 12 35 850 Secure electric drive unit in installation position (Front drive unit) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Moving the electric drive unit to the installation position
    • Shifting the electric drive unit from the installation position
• 12 36 Electric Powertrain Control Unit, Brush Module, Radial Shaft Seal
  • 12 36 615 Replacing the rear electrical machine electronics (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the electrical machine electronics
    • Removing high-voltage connection
    • Cleaning the sealing surfaces (installation of the removed cover of the EME)
    • Install high-voltage connection
    • Installing the electrical machine electronics (EME)
  • 12 36 710 Replace the front electrical machine electronics (after vehicle diagnosis) (drive unit removed) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the electrical machine electronics
    • Cleaning the sealing surfaces (installation of the removed cover of the EME)
    • Installing the electrical machine electronics
  • 12 37 702 Replace brush module front (after vehicle diagnosis) (drive unit supported) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the brush module
    • Installing the brush module
  • 12 37 703 Replace excitation cable front (Drive unit removed) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the excitation cable
    • Installing the excitation cable
  • 12 37 902 Replace brush module rear (after vehicle diagnosis) (drive unit supported) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the brush module
    • Installing the brush module
  • 12 37 903 Replacing the rear excitation cable (Drive unit removed) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the excitation cable
    • Installing the excitation cable
  • 12 37 908 Replacing the rear rotor side radial shaft seal (Drive unit removed) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the radial shaft seal (rotor shaft)
    • Installing the radial shaft seal (rotor shaft)
  • 12 37 913 Replacing the pressure compensation element in the brush module lid, rear (Drive unit removed) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the pressure compensation element from the lid of the brush compartment
    • Sticking the pressure compensation element on the lid of the brush compartment (at the time of replacement)
  • 12 37 920 Replace the lid for the brush module rear (Drive unit removed) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the lid from the brush module
    • Removing rotor position sensor
    • Installing the rotor position sensor
    • Installing the lid of the brush module
• 12 41 Starter Motor
  • 12 41 020 Removing and installing/replacing starter motor (RWD) (430i coupe and Gran Coupe sedan)
    • Removing starter motor
    • Replace starter
    • Installing starter motor
  • 12 41 041 Replacing the engagement solenoid switch (4' Series coupe, convertible, and Gran Coupe sedan)
  • 12 41 020 Removing and installing/replacing starter motor (RWD) (M440i coupe/convertible/Gran Coupe sedan)
    • Removing starter motor
    • Replace starter
    • Installing starter motor
  • 12 41 020 Removing and installing/replacing starter motor (AWD) (M440i xDrive coupe/Convertible/Gran Coupe sedan)
    • Removing starter motor
    • Replace starter
    • Installing starter motor
  • 12 41 020 Removing and installing/replacing starter motor (RWD) (430i convertible)
    • Removing starter motor
    • Replace starter
    • Installing starter motor
• 12 42 Positive Battery Terminal For Starter And Alternator
  • 12 42 540 Replacing the safety battery terminal (SBK) (4' Series coupe, convertible, and Gran Coupe sedan)
  • 12 42 651 Removing and installing/replacing the positive battery cable remote positive terminal for alternator (after vehicle diagnosis) (430i and 430i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the positive battery cable from the alternator to the auxiliary terminal for jump starting
    • Install the positive battery cable from the alternator to the auxiliary terminal for jump starting
  • 12 42 652 Removing and installing/replacing the positive battery cable remote positive terminal for starter (after vehicle diagnosis) (RWD) (430i coupe/convertible/Gran Coupe sedan)
    • Remove the positive battery cable from the starter to remote positive terminal
    • Install the positive battery cable from the starter motor to the auxiliary terminal for jump starting
  • 12 42 651 Removing and installing/replacing the positive battery cable remote positive terminal for alternator (after vehicle diagnosis) (M440i and M440i xDrive coupe/convertible/Gran Coupe sedan)
    • Removing the positive battery cable from the alternator to the auxiliary terminal for jump starting
    • Install the positive battery cable from the alternator to the auxiliary terminal for jump starting
  • 12 42 652 Removing and installing/replacing the positive battery cable remote positive terminal for starter (after vehicle diagnosis) (RWD) (M440i coupe/convertible/Gran Coupe sedan)
    • Remove the positive battery cable from the starter to remote positive terminal
    • Install the positive battery cable from the starter motor to the auxiliary terminal for jump starting
  • 12 42 652 Removing and installing/replacing the positive battery cable remote positive terminal for starter (after vehicle diagnosis) (AWD) (M440i xDrive coupe/Convertible/Gran Coupe sedan)
    • Remove the positive battery cable from the starter to remote positive terminal
    • Install the positive battery cable from the starter motor to the auxiliary terminal for jump starting