Engine Electrical System -- Repair M5 (F90)

• 12 00 Engine Electrical System
  • Instructions for removal and replacement of control units (M5 2018-2022)
  • Notes on starting assistance (M5 2018-2022)
• 12 12 Ignition Wire, Spark Plugs
  • 12 12 011 Removing and installing/replacing all spark plugs (M5 2018-2020)
    • Replace the spark plugs of cylinder bank 1
    • Replace spark plugs of cylinder bank 2
  • 12 12 011 Removing and installing/replacing all spark plugs (M5 2021-2022)
    • Replace the spark plugs of cylinder bank 1
    • Replace spark plugs of cylinder bank 2
• 12 13 Ignition Coil
  • 12 13 506 Replacing an ignition coil (following vehicle diagnosis) (right) (M5 2018-2020)
    • Removing ignition coil of cylinder bank 1
    • Install ignition coils of cylinder bank 1
  • 12 13 506 Replacing an ignition coil (following vehicle diagnosis) (right) (M5 2021-2022)
    • Removing ignition coil of cylinder bank 1
    • Install ignition coils of cylinder bank 1
  • 12 13 507 Replacing an ignition coil (after vehicle diagnosis) (left) (M5 2018-2020)
    • Removing ignition coil of cylinder bank 2
    • Install the ignition coils of cylinder bank 2
  • 12 13 507 Replacing an ignition coil (after vehicle diagnosis) (left) (M5 2021-2022)
    • Removing ignition coil of cylinder bank 2
    • Install the ignition coils of cylinder bank 2
  • 12 13 512 Replacing more than one ignition coil (after vehicle diagnosis) (M5 2018-2020)
    • Removing ignition coil of cylinder bank 2
    • Removing ignition coil of cylinder bank 1
    • Install the ignition coils of cylinder bank 2
    • Install ignition coils of cylinder bank 1
  • 12 13 512 Replacing more than one ignition coil (after vehicle diagnosis) (M5 2021-2022)
    • Removing ignition coil of cylinder bank 1
    • Install ignition coils of cylinder bank 1
    • Removing ignition coil of cylinder bank 2
    • Install the ignition coils of cylinder bank 2
• 12 14 Electronic Switching Or Control Units
  • 12 14 512 Replacing the camshaft position sensor of the exhaust camshaft, left (after vehicle diagnosis) (M5 2018-2020)
    • Remove the exhaust camshaft sensor of cylinder bank 2
    • Installing the exhaust camshaft sensor of cylinder bank 2
  • 12 14 512 Replacing the camshaft position sensor of the exhaust camshaft, left (after vehicle diagnosis) (M5 2021-2022)
    • 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) (M5 2018-2022)
    • Removing exhaust camshaft sensor of cylinder bank 1
    • Installing exhaust camshaft sensor of cylinder bank 1
  • 12 14 521 Replacing the crankshaft sensor (after vehicle diagnosis) (M5 2018-2022)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 522 Replacing the camshaft position sensor of the intake camshaft, left (after vehicle diagnosis) (M5 2018-2022)
    • 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 (after vehicle diagnosis) (M5 2018-2022)
    • Removing intake camshaft sensor of cylinder bank 1
    • Installing intake camshaft sensor of cylinder bank 1
  • 12 14 551 Removing and installing Digital Motor Electronics control unit (Cylinders 1-4) (M5 2018-2022)
    • Remove the DME control unit of cylinders 1 to 4
    • Install the DME control unit of cylinders 1 to 4
  • 12 14 553 Removing and installing Digital Motor Electronics control unit (Cylinders 5-8) (M5 2018-2022)
    • Remove the DME control unit of cylinders 5 to 8
    • Install the DME control unit of cylinders 5 to 8
  • 12 14 555 Replacing the Digital Motor Electronics control unit, cylinder 1-4 (after vehicle diagnosis) (M5 2018-2022)
    • Remove the DME control unit of cylinders 1 to 4
    • Reading adjustment values during replacement of engine control units
    • 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) (M5 2018-2022)
    • Remove the DME control unit of cylinders 5 to 8
    • Reading adjustment values during replacement of engine control units
    • Install the DME control unit of cylinders 5 to 8
  • 12 14 557 Replacing both Digital Motor Electronics control units (after vehicle diagnosis) (M5 2018-2022)
    • Remove the DME control unit of cylinders 5 to 8
    • Remove the DME control unit of cylinders 1 to 4
    • Reading adjustment values during replacement of engine control units
    • Install the DME control unit of cylinders 5 to 8
    • Install the DME control unit of cylinders 1 to 4
  • 12 14 610 Replacing knock sensor(s) right (after vehicle diagnosis) (M5 2018-2022)
    • Remove the knock sensors on the right
    • Install the knock sensors on the right
  • 12 14 611 Replace the left knock sensor(s) (after vehicle diagnosis) (M5 2018-2022)
    • Remove the left knock sensors
    • Installing the left knock sensors
  • 12 14 700 Coding the control unit (DME/DDE) (M5 2018-2022)
  • Programming the control unit (DME/DDE) (M5 2018-2022)
• 12 31 Alternator With Drive And Attachment
  • 12 31 020 Removing and installing/replacing alternator (M5 2018-2022)
    • Removing the alternator
    • Install alternator
• 12 32 Controller
  • 12 32 501 Replacing the voltage regulator for the alternator (after vehicle diagnosis) (M5 2018-2022)
    • Replacing the alternator speed governor
• 12 41 Starter With Attachment
  • 12 41 020 Removing and installing/replacing starter motor (M5 2018-2022)
    • Removing starter motor
    • Installing starter motor
  • Replacing the engagement solenoid switch (M5 2018-2022)
• 12 42 Starter Line
  • Replacing the safety battery terminal (SBK) (M5 2018-2022)
  • 12 42 651 Removing and installing/replacing the positive battery cable remote positive terminal alternator (M5 2018-2022)
    • Remove the positive battery cable from the remote positive terminal to the alternator
    • Install the positive battery cable from the remote positive terminal to the alternator
  • 12 42 652 Removing and installing/replacing the positive battery cable remote positive terminal starter (M5 2018-2022)
    • Remove the positive battery cable from the remote positive terminal to the starter motor
    • Installing the positive battery cable from the remote positive terminal to the starter
• 12 51 Engine Wiring Harness
  • 12 51 245 Remove and install/replace transmission module engine wiring (M5 2018-2022)
    • Remove the transmission wiring harness
    • Installing transmission wiring harness
  • 12 51 300 Remove and install/replace engine wiring harness section, ignition module cylinder 1-4 (M5 2018-2020)
    • Removing wiring harness section for the ignition system of cylinder bank 1
    • Installing wiring harness section for ignition system of bank 1
  • 12 51 300 Remove and install/replace engine wiring harness section, ignition module cylinder 1-4 (M5 2021-2022)
    • Removing wiring harness section for the ignition system of cylinder bank 1
    • Installing wiring harness section for ignition system of bank 1
  • 12 51 301 Remove and install/replace engine wiring harness section, ignition module cylinder 5-8 (M5 2018-2020)
    • Remove wiring harness section for the ignition system of cylinder bank 2
    • Installing wiring harness section for ignition system of bank 2
  • 12 51 301 Remove and install/replace engine wiring harness section, ignition module cylinder 5-8 (M5 2021-2022)
    • Remove wiring harness section for the ignition system of cylinder bank 2
    • Installing wiring harness section for ignition system of bank 2
  • 12 51 302 Remove and install/replace wiring harness section, sensor system module cylinder 1-4 (M5 2018-2022)
    • Removing the wiring harness for the sensor system of cylinder bank 1
    • Installing wiring harness for sensor system of cylinder bank 1
  • 12 51 303 Remove and install/replace wiring harness section, sensor system module cylinder 5-8 (M5 2018-2022)
    • Removing the vehicle wiring harness for the sensor system of cylinder bank 2
    • Installing wiring harness for sensor system of cylinder bank 2
  • 12 51 321 Removing and installing/replacing wiring harness section, adapter, oil-level sensor (M5 2018-2022)
    • Removing adapter cable for oil-level sensor
    • Install adapter cable of the oil-level sensor
  • 12 51 322 Removing and installing/replacing the engine DME/PDM wiring harness section (M5 2018-2022)
    • Removing the wiring harness section of DME for the integrated power supply module
    • Installing the wiring harness section of DME for the integrated power supply module
  • 12 51 323 Remove and install/replace wiring harness section for oil temperature sensor adapter (M5 2018-2022)
    • Remove wiring harness section adapter for oil temperature sensor
    • Install wiring harness section adapter for oil temperature sensor
• 12 52 Plug Connections, Terminals, Loose Parts
  • 12 52 032 Removing and install right control unit bracket (M5 2018-2022)
    • Removing the control unit bracket for cylinders 1 to 4
    • Installing control unit holder for cylinders 1 to 4
  • 12 52 033 Removing and installing/replacing the left control unit bracket (M5 2018-2022)
    • Removing holder of DME control unit for cylinders 5 to 8
    • Installing holder of the DME control unit for cylinders 5 to 8
• 12 61 Oil Pressure, Oil Temp, Oil Level Check
  • 12 61 280 Removing and installing/replacing oil pressure switch (M5 2018-2022)
    • Removing the oil pressure switch
    • Installing the oil pressure switch
  • 12 61 285 Replacing the oil level sensor for engine oil (M5 2018-2022)
    • Removing the oil-level sensor
    • Prepare the oil-level sensor
    • Installing the oil-level sensor
• 12 63 Switch And Relay
  • 12 63 586 Replacing power distribution box (after vehicle diagnosis) (M5 2018-2022)
    • Removing the integrated power supply module
    • Installing the integrated power supply module