Engine Electrical System - Repair (F31 & F34)

• 12 00 Engine Electrical System
  • Instructions for removal and replacement of control units (330i xDrive Wagon, 328d xDrive Wagon, 330i GT xDrive, 340i GT xDrive)
  • Notes on starting assistance (330i xDrive Wagon, 328d xDrive Wagon, 330i GT xDrive, 340i GT xDrive)
• 12 12 Ignition Wire, Spark Plugs
  • Remove and install/replace all spark plugs (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Remove and install/replace all spark plugs (B58) (340i GT xDrive)
• 12 13 Ignition Coil
  • Replacing ignition coils (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing ignition coils (B58) (340i GT xDrive)
• 12 14 Electronic Switching Or Control Units
  • Replacing crankshaft pulse sensor (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing pulse sensor on intake camshaft (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing pulse sensor on exhaust camshaft (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing control unit (DME) (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing the knock sensor at cylinders 1-2 (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing the knock sensor at cylinders 3-4 (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Coding the control unit (DME/DDE) (330i xDrive Wagon, 328d xDrive Wagon, 330i GT xDrive, 340i GT xDrive)
  • Programming the control unit (DME/DDE) (330i xDrive Wagon, 328d xDrive Wagon, 330i GT xDrive, 340i GT xDrive)
  • Replacing control unit box (N47 D20 O 1 with SCR) (328d xDrive Wagon)
  • Replace crankshaft sensor (after vehicle diagnosis) (340i GT xDrive)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • Replacing the camshaft sensor of the intake camshaft (after vehicle diagnosis) (340i GT xDrive)
    • Remove camshaft position sensor for the intake camshaft
    • Replace the sealing ring of the camshaft position sensor
    • Install camshaft position sensor of intake camshaft
  • Replacing the camshaft sensor of the exhaust camshaft (after vehicle diagnosis) (340i GT xDrive)
    • 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
  • Replacing the control unit of the Digital Motor Electronics (After vehicle diagnosis) (without programming/encoding) (340i GT xDrive)
    • Removing the DME control unit
    • Installing the DME control unit
  • Replacing knock sensor (after vehicle diagnosis) (cylinders 1+2) (340i GT xDrive)
    • Removing the knock sensor of cylinders 1 to 3
    • Installing knock sensor of cylinders 1 to 3
  • Replacing knock sensor (after vehicle diagnosis) (cylinders 3+4) (340i GT xDrive)
    • Removing the knock sensor of cylinders 4 to 6
    • Installing the knock sensor of cylinders 4 to 6
• 12 21 Preheating Relay
  • Replacing glowplug control unit (N47 D20 O 1 with SCR) (328d xDrive Wagon)
• 12 23 Glow Plugs
  • Replacing all glowplugs (N47 D20 O 1 with SCR) (328d xDrive Wagon)
• 12 31 Alternator With Drive And Attachment
  • Removing and installing or replacing alternator (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Removing and refitting/replacing alternator (N47 D20 O 1 with SCR) (328d xDrive Wagon)
  • Removing and installing/replacing alternator (340i GT xDrive)
    • Removing the alternator
    • Replacing the alternator
    • Installing the alternator
• 12 41 Starter With Attachment
  • Removing and installing/replacing starter motor (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing the engagement solenoid switch (330i xDrive Wagon, 328d xDrive Wagon, 330i GT xDrive, 340i GT xDrive)
  • Removing and refitting/replacing starter motor (N47 D20 O 1 with SCR) (328d xDrive Wagon)
  • Removing and installing/replacing starter motor (340i GT xDrive)
    • Removing starter motor
    • Installing starter motor
• 12 42 Starter Line
  • Replacing positive battery cable between starter motor, alternator and positive battery connection point (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing the safety battery terminal (SBK) (330i xDrive Wagon, 328d xDrive Wagon, 330i GT xDrive, 340i GT xDrive)
  • Replacing the positive battery lead between the starter motor, alternator and battery positive connection point (N47 D20 O 1 with SCR) (328d xDrive Wagon)
  • Removing and installing/replacing the positive battery cable (after vehicle diagnosis) (between alternator/starter motor and positive battery terminal remote positive terminal) (340i GT xDrive)
    • Removing the positive battery cable
    • Installing the positive battery cable
• 12 51 Engine Wiring Harness
  • Replacing wiring harness section for ignition and injectors (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing wiring harness section for Valvetronic servomotor (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Removing and installing/replacing the engine wiring harness for the sensor system at module 1 (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Remove and install/replace the engine wiring harness of sensor system module 2 (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Removing and installing the wiring harness section for the engine and transmission module (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Removing and installing wiring harness section for supply module (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing wiring loom section for engine (N47 D20 O 1 with SCR) (328d xDrive Wagon)
  • Replacing wiring loom section for injectors (N47 D20 O 1 with SCR) (328d xDrive Wagon)
  • Replacing the wiring harness section for injectors and ignition coils (340i GT xDrive)
    • Remove the wiring harness section for the injectors
    • Install the wiring harness section for the injectors
  • Replace wiring harness section for Valvetronic servomotor (340i GT xDrive)
    • Remove the wiring harness for the Valvetronic servomotor
    • Install the wiring harness for the Valvetronic servomotor
  • Remove and install/replace Module 1, sensor system engine wiring (340i GT xDrive)
    • Install the wiring harness section for sensor system 1
  • Remove and install/replace Module 2, sensor system engine wiring (340i GT xDrive)
    • Remove the wiring harness section for sensor system 2
    • Install the wiring harness section for sensor system 2
  • Removing and installing/replacing transmission module engine wiring, (340i GT xDrive)
    • Remove the wiring harness section for the transmission
    • Install the wiring harness section for the transmission
• 12 61 Oil Pressure, Oil Temp, Oil Level Check
  • Removing and installing/replacing oil pressure switch (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Removing and installing/replacing oil level sensor for engine oil (330i xDrive Wagon, 330i GT xDrive)
  • Removing and refitting/replacing oil pressure switch (N47 D20 O 1 with SCR) (328d xDrive Wagon)
  • Removing and refitting/replacing engine oil level sensor (N47 D20 O 1 with SCR) (328d xDrive Wagon)
  • Removing and installing/replacing oil pressure switch (340i GT xDrive)
    • Removing the oil pressure switch
    • Installing the oil pressure switch
  • Replacing engine oil level sensor (340i GT xDrive)
    • Removing the oil-level sensor
    • Installing the oil-level sensor
• 12 63 Switch And Relay
  • Replacing power distribution module (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Replacing power distribution box (after vehicle diagnosis) (340i GT xDrive)
    • Remove the integrated power supply module (PDM)
    • Install the integrated power supply module (PDM)
• 12 90 E-Box
  • Replace electronics box (B48) (330i xDrive Wagon, 330i GT xDrive)
  • Remove and install/replace control unit box (340i GT xDrive)
    • Removing the holder for the Digital Motor Electronics-control unit
    • Installing the holder for the Digital Motor Electronics-control unit