Engine Electrical System - Repair (F32, F33 & F36)

• 12 00 General Information
  • Instructions for removal and replacement of control units (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Notes on starting assistance (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
• 12 12 Spark Plugs
  • Remove and install/replace all spark plugs (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Remove and install/replace all spark plugs (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
• 12 13 Ignition Coils
  • Replacing ignition coils (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Replacing ignition coils (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
• 12 14 Control Unit And Sensors
  • Replacing crankshaft pulse sensor (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Replacing pulse sensor on intake camshaft (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Replacing pulse sensor on exhaust camshaft (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Replacing control unit (PME) (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Replacing the knock sensor at cylinders 1-2 (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Replacing the knock sensor at cylinders 3-4 (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Coding the control unit (DME/DDE) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Programming the control unit (DME/DDE) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • 12 14 521 Replace crankshaft sensor (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Removing the crankshaft sensor
    • Installing the crankshaft sensor
  • 12 14 523 Replacing the camshaft sensor of the intake camshaft (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • 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 Replacing the camshaft sensor of the exhaust camshaft (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • 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 14 550 Replacing the control unit of the Digital Motor Electronics (without programming/encoding) (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Removing the DME control unit
    • Installing the DME control unit
  • 12 14 602 Replacing knock sensor (cylinders 1+2) (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series 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 (cylinders 3+4) (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Removing the knock sensor of cylinders 4 to 6
    • Installing the knock sensor of cylinders 4 to 6
• 12 31 Alternator
  • Removing and installing or replacing alternator (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • 12 31 020 Removing and installing/replacing alternator (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Removing the alternator
    • Replacing the alternator
    • Installing the alternator
• 12 41 Starter
  • Removing and installing/replacing starter motor (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Replacing the engagement solenoid switch (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • 12 41 020 Removing and installing/replacing starter motor (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Removing starter motor
    • Installing starter motor
• 12 42 Starter Positive Cable
  • Replacing positive battery cable between starter motor, alternator and positive battery connection point (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Replacing the safety battery terminal (SBK) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • 12 42 500 Removing and installing/replacing the positive battery cable for starter motor (to remote battery positive terminal) (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Removing the positive battery cable
    • Installing the positive battery cable
• 12 51 Engine Wiring Harness
  • Replacing wiring harness section for ignition and injectors (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Replacing wiring harness section for Valvetronic servomotor (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Removing and installing/replacing the engine wiring harness for the sensor system at module 1 (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Remove and install/replace the engine wiring harness of sensor system module 2 (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Removing and installing the wiring harness section for the engine and transmission module (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Removing and installing wiring harness section for supply module (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • 12 51 210 Replacing the wiring harness section for injectors and ignition coils (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Remove the wiring harness section for the injectors
    • Install the wiring harness section for the injectors
  • 12 51 215 Replace wiring harness section for Valvetronic servomotor (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Remove the wiring harness for the Valvetronic servomotor
    • Install the wiring harness for the Valvetronic servomotor
  • 12 51 235 Remove and install/replace Module 1, sensor system engine wiring (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Install the wiring harness section for sensor system 1
  • 12 51 240 Remove and install/replace Module 2, sensor system engine wiring (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Remove the wiring harness section for sensor system 2
    • Install the wiring harness section for sensor system 2
  • 12 51 245 Removing and installing/replacing transmission module engine wiring (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Remove the wiring harness section for the transmission
    • Install the wiring harness section for the transmission
• 12 61 Oil Pressure Switch, Oil Level Sensor
  • Removing and installing/replacing oil pressure switch (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • Removing and installing/replacing oil level sensor for engine oil (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • 12 61 280 Removing and installing/replacing oil pressure switch (B58 6-Cyl. Engine with Automatic Transmission) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Removing the oil pressure switch
    • Installing the oil pressure switch
  • 12 61 280 Removing and installing/replacing oil pressure switch (B58 6-Cyl. Engine with Manual Transmission) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Removing the oil pressure switch
    • Installing the oil pressure switch
  • 12 61 285 Replacing engine oil level sensor (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Removing the oil-level sensor
    • Installing the oil-level sensor
• 12 63 Power Distribution Module
  • Replacing power distribution module (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • 12 63 586 Replacing power distribution box (after vehicle diagnosis) (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Remove the integrated power supply module (PDM)
    • Install the integrated power supply module (PDM)
• 12 90 E-Box
  • Replace electronics box (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
  • 12 90 150 Remove and install/replace control unit box (B58 6-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)
    • Removing the holder for the DME control unit
    • Installing the holder for the Digital Motor Electronics-control unit