Engine Electrical System - Spark Plugs, Coils, Sensors, & Alternator - Repair (G12)

• 12 00 General Information
  • Instructions for removal and replacement of control units (all 7' series models 2016-2022)
  • Notes on starting assistance (all 7' series models 2016-2022)
• 12 12 Spark Plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (740i 2016-2022, 740i xDrive 2017-2022)
    • Removing all spark plugs
    • Installing all spark plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (740e xDrive PHEV 2017-2019)
    • Removing all spark plugs
    • Installing all spark plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (745e xDrive PHEV 2020-2022)
    • Removing all spark plugs
    • Installing all spark plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (750i 2016-2019)
    • Replace spark plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (750i xDrive 2016-2022)
    • Replacing all spark plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (M760i xDrive 2017-2022)
    • Remove spark plugs
    • Install spark plugs
• 12 13 Ignition Coils
  • 12 13 511 Replacing an ignition coil (after vehicle diagnosis) (740i 2016-2022, 740i xDrive 2017-2022)
    • Removing the ignition coil
    • Install ignition coil
  • 12 13 511 Replacing an ignition coil (after vehicle diagnosis) (740e xDrive PHEV 2017-2019)
    • Remove ignition coils
    • Installing the ignition coils
  • 12 13 511 Replacing an ignition coil (after vehicle diagnosis) (745e xDrive PHEV 2020-2022)
    • Removing all ignition coils
    • Install all ignition coils
  • 12 13 011 Replacing the ignition coil (s) (750i 2016-2019)
    • Remove ignition coils
    • Installing the ignition coils
  • 12 13 506 Replacing an ignition coil (following vehicle diagnosis) (right) (750i xDrive 2016-2022)
    • Removing the ignition coil of cylinder bank 1
    • Installing the ignition coil of cylinder bank 1
  • 12 13 507 Replacing an ignition coil (after vehicle diagnosis) (left) (750i xDrive 2016-2022)
    • Removing ignition coil of cylinder bank 2
    • Installing the ignition coil of cylinder bank 2
  • 12 13 512 Replacing more than one ignition coil (after vehicle diagnosis) (750i xDrive 2016-2022)
    • Removing the ignition coil of cylinder bank 1
    • Installing the ignition coil of cylinder bank 1
    • Removing ignition coil of cylinder bank 2
    • Installing the ignition coil of cylinder bank 2
  • 12 13 011 Replacing the ignition coil (s) (M760i xDrive 2017-2022)
    • Remove ignition coils
    • Installing the ignition coils
• 12 14 Engine Sensors, Engine Control Module
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (740i 2016-2022)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 523 Replacing the camshaft position sensor of the intake camshaft (after vehicle diagnosis) (740i 2016-2022, 740i xDrive 2017-2022)
    • Remove camshaft position sensor for the intake camshaft
    • Installing camshaft position sensor of intake camshaft
  • 12 14 524 Replacing the camshaft position sensor of the exhaust camshaft (after vehicle diagnosis) (740i 2016-2022, 740i xDrive 2017-2022)
    • Remove the camshaft position sensor of the exhaust camshaft
    • Installing the camshaft position sensor of the exhaust camshaft
  • 12 14 550 Replacing the Digital Motor Electronics control unit (after vehicle diagnosis) (740i 2016-2022, 740i xDrive 2017-2022)
    • Removing the DME control unit
    • Installing the DME control unit
  • 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (740i 2016-2022, 740i xDrive 2017-2022)
    • 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) (740i 2016-2022, 740i xDrive 2017-2022)
    • Removing the knock sensor of cylinders 4 to 6
    • Installing the knock sensor of cylinders 4 to 6
  • Coding the control unit (DME/DDE) (all 7' series models 2016-2022)
  • Programming the control unit (DME/DDE) (all 7' series models 2016-2022)
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (740i xDrive 2017-2022)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (740e xDrive PHEV 2017-2019, 745e xDrive PHEV 2020-2022)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 523 Replacing the camshaft position sensor of the intake camshaft (after vehicle diagnosis) (740e xDrive PHEV 2017-2019)
    • Remove camshaft position sensor of intake camshaft
    • Install camshaft position sensor of intake camshaft
  • 12 14 524 Replacing the camshaft position sensor of the exhaust camshaft (after vehicle diagnosis) (740e xDrive PHEV 2017-2019)
    • 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) (740e xDrive PHEV 2017-2019)
    • Removing the DME control unit
    • Installing the DME control unit
  • 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (740e xDrive PHEV 2017-2019)
    • 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) (740e xDrive PHEV 2017-2019)
    • Remove the knock sensors for cylinders 3 to 4
    • Install the knock sensors for cylinders 3 to 4
  • 12 14 523 Replacing the camshaft position sensor of the intake camshaft (after vehicle diagnosis) (745e xDrive PHEV 2020-2022)
    • Remove camshaft position sensor for the intake camshaft
    • Installing camshaft position sensor of intake camshaft
  • 12 14 524 Replacing the camshaft position sensor of the exhaust camshaft (after vehicle diagnosis) (745e xDrive PHEV 2020-2022)
    • Remove the camshaft position sensor of the exhaust camshaft
    • Installing the camshaft position sensor of the exhaust camshaft
  • 12 14 550 Replacing the Digital Motor Electronics control unit (after vehicle diagnosis) (745e xDrive PHEV 2020-2022)
    • Removing the DME control unit
    • Installing the DME control unit
  • 12 14 602 Replacing knock sensor (following vehicle diagnosis) (cylinders 1+3) (745e xDrive PHEV 2020-2022)
    • 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) (745e xDrive PHEV 2020-2022)
    • Removing the knock sensor of cylinders 4 to 6
    • Installing the knock sensor of cylinders 4 to 6
  • 12 14 512 Replacing the camshaft position sensor of the exhaust camshaft, left (750i 2016-2019)
    • Removing the left camshaft position sensor of the exhaust camshaft
    • Install the left camshaft position sensor of the exhaust camshaft
  • 12 14 513 Replacing camshaft position sensor of exhaust camshaft at right (after vehicle diagnosis) (750i 2016-2019)
    • Remove the camshaft position sensor of the exhaust camshaft on the right
    • Installing the camshaft position sensor of the right exhaust camshaft
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (750i 2016-2019)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 522 Replacing the camshaft position sensor of the intake camshaft, left (750i 2016-2019)
    • Remove the camshaft position sensor of the intake camshaft on the left
    • Installing the camshaft position sensor of the intake camshaft on the left
  • 12 14 526 Replacing camshaft position sensor of intake camshaft, right (750i 2016-2019)
    • Removing camshaft position sensor of the right intake camshaft
    • Installing camshaft position sensor of the right intake camshaft
  • 12 14 555 Replacing the Digital Motor Electronics control unit, cylinder 1-4 (750i 2016-2019)
    • Removing the DME control unit for cylinders 1 to 4
    • Installing the DME control unit for cylinders 1 to 4
  • 12 14 556 Replacing the Digital Motor Electronics control unit, cylinder 5-8 (after vehicle diagnosis) (750i 2016-2019)
    • Removing the DME control unit for cylinders 5 to 8
    • Installing the DME control unit for cylinders 5 to 8
  • 12 14 610 Replacing knock sensor (s) right (after vehicle diagnosis) (750i 2016-2019)
    • Remove the knock sensors on the right
    • Install the knock sensors on the right
  • 12 14 512 Replacing the camshaft position sensor of the exhaust camshaft, left (750i xDrive 2016-2022)
    • Remove the exhaust camshaft sensor of cylinder bank 2
    • Installing the exhaust camshaft sensor of cylinder bank 2
  • 12 14 513 Replacing camshaft position sensor of exhaust camshaft at right (after vehicle diagnosis) (750i xDrive 2016-2022)
    • Removing exhaust camshaft sensor of cylinder bank 1
    • Installing exhaust camshaft sensor of cylinder bank 1
  • 12 14 521 Replacing the crankshaft sensor (750i xDrive 2016-2022)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 522 Replacing the camshaft position sensor of the intake camshaft, left (750i xDrive 2016-2022)
    • Remove the intake camshaft sensor of cylinder bank 2
    • Install the intake camshaft sensor of cylinder bank 2
  • 12 14 526 Replacing camshaft position sensor of intake camshaft, right (750i xDrive 2016-2022)
    • Removing intake camshaft sensor of cylinder bank 1
    • Installing intake camshaft sensor of cylinder bank 1
  • 12 14 555 Replacing the Digital Motor Electronics control unit, cylinder 1-4 (750i xDrive 2016-2022)
    • Remove the DME control unit of cylinders 1 to 4
    • Install the DME control unit of cylinders 1 to 4
  • 12 14 556 Replacing the Digital Motor Electronics control unit, cylinder 5-8 (after vehicle diagnosis) (750i xDrive 2016-2022)
    • Remove the DME control unit of cylinders 5 to 8
    • Install the DME control unit of cylinders 5 to 8
  • 12 14 610 Replacing knock sensor (s) right (750i xDrive 2016-2022)
    • Remove the knock sensors on the right
    • Install the knock sensors on the right
  • 12 14 611 Replace the left knock sensor (s) (750i xDrive 2016-2022)
    • Overview
    • Remove the left knock sensors
    • Installing the left knock sensors
  • 12 14 512 Replacing the camshaft position sensor of the exhaust camshaft, left (M760i xDrive 2017-2022)
    • Install the left camshaft position sensor of the exhaust camshaft
    • Removing the left camshaft position sensor of the exhaust camshaft
  • 12 14 513 Replacing camshaft position sensor of exhaust camshaft at right (after vehicle diagnosis) (M760i xDrive 2017-2022)
    • Installing the camshaft position sensor of the right exhaust camshaft
    • Removing the camshaft position sensor of the exhaust camshaft on the right
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (M760i xDrive 2017-2022)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 522 Replacing the camshaft position sensor of the intake camshaft, left (M760i xDrive 2017-2022)
    • Installing the camshaft position sensor of the intake camshaft on the left
    • Remove the camshaft position sensor of the intake camshaft on the left
  • 12 14 526 Replacing camshaft position sensor of intake camshaft, right (M760i xDrive 2017-2022)
    • Installing camshaft position sensor of the right intake camshaft
    • Removing camshaft position sensor of the right intake camshaft
  • 12 14 552 Replacing the Digital Motor Electronics control unit (Cylinders 1-6) (after vehicle diagnosis) (M760i xDrive 2017-2022)
    • Removing the DME control unit for cylinders 1 to 6
    • Installing the DME control unit for cylinders 1 to 6
  • 12 14 554 Replacing the Digital Motor Electronics control unit (Cylinder 7-12) (after vehicle diagnosis) (M760i xDrive 2017-2022)
    • Removing the DME control unit for cylinders 7 to 12
    • Installing the DME control unit for cylinders 7 to 12
  • 12 14 620 Replacing all knock sensors (after vehicle diagnosis) (M760i xDrive 2017-2022)
    • Remove all knock sensors
    • Install all knock sensors
• 12 31 Alternator
  • 12 31 020 Removing and installing/replacing alternator (740i 2016-2022, 740i xDrive 2017-2022)
    • Removing the alternator
    • Installing the alternator
  • 12 31 020 Removing and installing/replacing alternator (750i 2016-2019)
    • Removing the alternator
    • Installing the alternator
  • 12 31 020 Removing and installing/replacing alternator (750i xDrive 2016-2022)
    • Removing the alternator
    • Install alternator
  • 12 31 020 Removing and installing/replacing alternator (M760i xDrive 2017-2022)
    • Removing the alternator
    • Installing the alternator
  • 12 31 024 Removing and installing/replacing alternator 2 (M760i xDrive 2017-2022)
    • Remove alternator 2
    • When replacing the alternator: Remount the idler pulley
    • Install alternator 2
  • 12 32 501 Replacing the voltage regulator for the alternator (after vehicle diagnosis) (750i 2016-2019)
    • Replacing the alternator speed governor
  • 12 32 501 Replacing the voltage regulator for the alternator (750i xDrive 2016-2022)
    • Replacing the alternator speed governor