Engine Electrical System -- Repair (G02)

• 12 00 General Information
  • Instructions for removal and replacement of control units
  • Notes on starting assistance
• 12 12 Spark Plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (X4 xDrive30i 2019-2021)
    • Removing all spark plugs
    • Installing all spark plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (X4 xDrive30i 2022-2023)
    • Removing all spark plugs
    • Installing all spark plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (X4 M40i 2019-2021)
    • Replace spark plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (X4 M40i 2022-2023)
    • Removing all spark plugs
    • Installing all spark plugs
• 12 13 Ignition Coils
  • 12 13 511 Replacing an ignition coil (after vehicle diagnosis) (X4 xDrive30i 2019-2021)
    • Remove ignition coils
    • Installing the ignition coils
  • 12 13 511 Replacing an ignition coil (after vehicle diagnosis) (X4 xDrive30i 2022-2023)
    • Removing the ignition coil
    • Install ignition coil
  • 12 13 512 Replacing more than one ignition coil (after vehicle diagnosis) (X4 M40i 2019-2021)
    • Remove ignition coils
    • Installing the ignition coils
  • 12 13 511 Replacing an ignition coil (after vehicle diagnosis) (X4 M40i 2022-2023)
    • Removing the ignition coil
    • Install ignition coil
• 12 14 Crankshaft Sensor, Camshaft Sensor, Knock Sensors, Engine Control Module
  • 12 14 523 Replace intake camshaft sensor (after vehicle diagnosis) (X4 xDrive30i 2019-2021)
    • Remove camshaft position sensor of intake camshaft
    • Install camshaft position sensor of intake camshaft
  • 12 14 524 Replace exhaust camshaft sensor (after vehicle diagnosis) (X4 xDrive30i 2019-2021)
    • Remove the camshaft position sensor of the exhaust camshaft
    • Install the camshaft position sensor of the exhaust camshaft
  • 12 14 550 Replacing the engine control module (after vehicle diagnosis)
    • Removing the DME control unit
    • Installing the DME control unit
  • 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (X4 xDrive30i 2019-2021)
    • Removing the knock sensor of cylinders 1 to 2
    • Installing the knock sensor at cylinders 1 to 2
  • 12 14 604 Replacing knock sensor (following vehicle diagnosis) (cylinders 4+6) (X4 xDrive30i 2019-2021)
    • Remove the knock sensors for cylinders 3 to 4
    • Install the knock sensors for cylinders 3 to 4
  • 12 14 700 Coding the engine control module
  • 12 14 705 Programming the engine control module
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (X4 xDrive30i 2019-2023)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 523 Replace intake camshaft sensor (after vehicle diagnosis) (X4 xDrive30i 2022-2023)
    • Remove camshaft position sensor of intake camshaft
    • Install camshaft position sensor of intake camshaft
  • 12 14 524 Replace exhaust camshaft sensor (after vehicle diagnosis) (X4 xDrive30i 2022-2023)
    • Remove the camshaft position sensor of the exhaust camshaft
    • Install the camshaft position sensor of the exhaust camshaft
  • 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (X4 xDrive30i 2022-2023)
    • 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) (X4 xDrive30i 2022-2023)
    • Remove the knock sensors for cylinders 3 to 4
    • Install the knock sensors for cylinders 3 to 4
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (X4 M40i 2019-2021)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 523 Replace intake camshaft sensor (after vehicle diagnosis) (X4 M40i 2019-2021)
    • Remove camshaft position sensor for the intake camshaft
    • Replace the sealing ring of the camshaft position sensor
    • Install camshaft position sensor of intake camshaft
  • 12 14 524 Replace exhaust camshaft sensor (after vehicle diagnosis) (X4 M40i 2019-2021)
    • Remove the camshaft position sensor of the exhaust camshaft
    • Replace the sealing ring of the camshaft position sensor
    • Install the camshaft position sensor of the exhaust camshaft
  • 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (X4 M40i 2019-2021)
    • 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) (X4 M40i 2019-2021)
    • Removing the knock sensor of cylinders 4 to 6
    • Installing the knock sensor of cylinders 4 to 6
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (X4 M40i 2022-2023)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 523 Replace intake camshaft sensor (after vehicle diagnosis) (X4 M40i 2022-2023)
    • 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) (X4 M40i 2022-2023)
    • 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) (X4 M40i 2022-2023)
    • 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) (X4 M40i 2022-2023)
    • 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 (X4 xDrive30i 2019-2021)
    • Removing the alternator
    • Replacing the alternator
    • Install alternator
  • 12 31 020 Removing and installing/replacing alternator (X4 xDrive30i 2022-2023)
    • Removing the alternator
    • Replacing the alternator
    • Installing the alternator
  • 12 31 020 Removing and installing/replacing alternator (X4 M40i 2019-2021)
    • Removing the alternator
    • Replacing the alternator
    • Installing the alternator
  • 12 31 020 Removing and installing/replacing alternator (X4 M40i 2022-2023)
    • 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 (X4 M40i 2022-2023)
    • 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 41 Starter Motor
  • 12 41 020 Removing and installing/replacing starter motor (X4 xDrive30i 2019-2023)
    • Removing starter motor
    • Installing starter motor
  • 12 41 041 Replacing the engagement solenoid switch
  • 12 41 020 Removing and installing/replacing starter motor (X4 M40i 2019-2021)
    • Removing starter motor
    • Installing starter motor
  • 12 41 020 Removing and installing/replacing starter motor (X4 M40i 2022-2023)
    • Removing starter motor
    • Replace starter
    • Installing starter motor
• 12 42 Starter Motor Positive Battery Cable
  • 12 42 540 Replacing the safety battery terminal (SBK)
  • 12 42 651 Removing and installing/replacing the positive battery cable remote positive terminal alternator (after vehicle diagnosis) (X4 xDrive30i 2019-2021, X4 M40i 2019-2021)
    • 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 starter (after vehicle diagnosis)
    • 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 alternator (after vehicle diagnosis) (X4 xDrive30i 2022-2023)
    • 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 42 651 Removing and installing/replacing the positive battery cable remote positive terminal alternator (after vehicle diagnosis) (X4 M40i 2022-2023)
    • 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 51 Engine Wiring Harness
  • 12 51 210 Replacing the wiring harness section for injectors and ignition coils (X4 xDrive30i 2019-2023)
    • Remove the wiring harness section for the ignition and injectors
    • Install the wiring harness section for the ignition and injectors
  • 12 51 215 Replace wiring harness section for Valvetronic servomotor (X4 xDrive30i 2019-2021)
    • Install the wiring harness section for the Valvetronic servomotor
  • 12 51 215 Replace the wiring harness section for the Valvetronic servomotor (X4 xDrive30i 2022-2023)
    • Remove the wiring harness section for the Valvetronic servomotor
    • Install the wiring harness section for the Valvetronic servomotor
  • 12 51 235 Remove and install/replace Module 1, sensor system engine wiring (X4 xDrive30i 2022-2023)
    • Removing the engine wiring harness for sensor system 1
    • Installing the engine wiring harness for the sensor system 1
  • 12 51 245 Remove and install/replace transmission module engine wiring, (X4 xDrive30i 2022-2023)
    • Removing the wiring harness section of the transmission wiring harness
    • Install the wiring harness section of the transmission wiring harness
  • 12 51 210 Replacing the wiring harness section for injectors and ignition coils (X4 M40i 2019-2021)
    • Remove the wiring harness section for the ignition and injectors
    • Install the wiring harness section for the ignition and injectors
  • 12 51 235 Remove and install/replace Module 1, sensor system engine wiring (X4 M40i 2019-2021)
  • 12 51 245 Remove and install/replace transmission module engine wiring, (X4 M40i 2019-2021)
    • Removing the wiring harness section of the transmission wiring harness
    • Install the wiring harness section of the transmission wiring harness
  • 12 51 210 Replacing the wiring harness section for injectors and ignition coils (X4 M40i 2022-2023)
    • Remove the wiring harness section for the ignition and injectors
    • Install the wiring harness section for the ignition and injectors
  • 12 51 235 Remove and install/replace Module 1, sensor system engine wiring (X4 M40i 2022-2023)
    • Removing the engine wiring harness for sensor system 1
    • Installing the engine wiring harness for sensor system 1
  • 12 51 240 Remove and install/replace Module 2, sensor system engine wiring (X4 M40i 2022-2023)
    • Removing the engine wiring harness for sensor system 2
    • Installing the engine wiring harness for the sensor system 2
  • 12 51 245 Remove and install/replace transmission module engine wiring, (X4 M40i 2022-2023)
    • Removing the wiring harness section of the transmission wiring harness
    • Install the wiring harness section of the transmission wiring harness
• 12 61 Oil Pressure Switch, Oil Level Sensor
  • 12 61 280 Removing and installing/replacing oil pressure switch (X4 xDrive30i 2019-2021)
    • Removing the oil pressure switch
    • Installing the oil pressure switch
  • 12 61 285 Replacing engine oil level sensor (X4 xDrive30i 2019-2021)
    • Removing the oil-level sensor
    • Installing the oil-level sensor
  • 12 61 280 Removing and installing/replacing oil pressure switch (X4 xDrive30i 2022-2023)
    • Removing the oil pressure switch
    • Installing the oil pressure switch
  • 12 61 285 Replacing the oil level sensor for engine oil (X4 xDrive30i 2022-2023)
    • Removing the oil-level sensor
    • Installing the oil-level sensor
  • 12 61 280 Removing and installing/replacing oil pressure switch (X4 M40i 2019-2021)
    • Removing the oil pressure switch
    • Installing the oil pressure switch
  • 12 61 285 Replacing engine oil level sensor (X4 M40i 2019-2021)
    • Removing the oil-level sensor
    • Prepare the oil-level sensor
    • Installing the oil-level sensor
  • 12 61 280 Removing and installing/replacing oil pressure switch (X4 M40i 2022-2023)
    • Removing the oil pressure switch
    • Installing the oil pressure switch
  • 12 61 285 Replacing the oil level sensor for engine oil (X4 M40i 2022-2023)
    • Removing the oil-level sensor
    • Installing the oil-level sensor
• 12 63 Power Distribution Box
  • 12 63 586 Replacing power distribution box (after vehicle diagnosis)
    • Remove the integrated power supply module (PDM)
    • Install the integrated power supply module (PDM)
• 12 90 ECM Housing
  • 12 90 150 Remove and install/replace control unit box (X4 xDrive30i 2019-2023)
    • Remove control unit bracket
    • Install control unit bracket
  • 12 90 150 Remove and install/replace control unit box (X4 M40i 2019-2023)
    • Removing the control unit holder
    • Installing the control unit holder