Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 BMW 320i Automatic TransFACTORY OEM SERVICE PROCEDURE
Engine - Repair - F30 (4 Of 4)
- Oil Pump With Filter And Drive
- 11 41 010 Removing and installing or replacing chain module for oil pump/vacuum pump (N55)
- 11 41 010 Removing and installing/replacing chain module for oil pump (N20, N26)
- 11 41 010 Removing and installing/replacing chain module for oil pump/vacuum pump (N55 hybrid car)
- 11 41 115 Removing and installing/replacing hydraulic valve (N20, N26)
- 11 41 115 Removing and installing/replacing hydraulic valve (N55)
- 11 41 115 Removing and installing/replacing hydraulic valve (N55 Hybrid)
- 11 41 000 Removing and installing/replacing oil pump (N55)
- 11 41 000 Removing and installing/replacing oil pump (N55 hybrid car)
- 11 41 000 Removing and installing/replacing oil/vacuum pump (N47D20 K/U/O/T 1)
- 11 41 000 Removing and installing/replacing the oil pump (N20, N26)
- 11 66 000 Removing and installing/replacing the vacuum/oil pump (N47D20 K/U/O/T 1)
- 11 27 110 Removing and refitting/replacing balancer shafts (N20)
- Oil Filter And Lines
- 11 42 198 Removing and installing oil feed line for exhaust turbocharger (N20, N26)
- 11 42 210 Removing and installing oil return line for exhaust turbocharger (N20, N26)
- 11 42 035 Removing and installing/renewing thermostat housing (N55 Hybrid)
- 11 42 020 Removing and installing/replacing complete full-flow oil filter (N47D20 K/U/O/T 1)
- 11 42 020 Removing and installing/replacing full-flow oil filter (N20, N26)
- 11 42 020 Removing and installing/replacing full-flow oil filter (N55 Hybrid)
- 11 42 020 Removing and installing/replacing full-flow oil filter (N55)
- 11 42 035 Removing and installing/replacing the thermostat housing N55
- Oil Filling, Dipstick
- Oil Cooler
- Water Pump With Drive
- 11 51 000 Removing and installing/replacing the coolant pump (N47D20 K/U/O/T 1)
- 11 51 000 Removing and installing/renewing coolant pump (N20, N26)
- 11 51 025 Removing and installing/replacing auxiliary water pump for electrical machine electronics (N55 Hybrid)
- 11 51 000 Removing and installing/replacing coolant pump (N55 hybrid)
- 11 51 000 Removing and installing/replacing coolant pump (N55)
- Thermostat And Connections
- 11 53 000 Remove and install/replace coolant thermostat (N55 hybrid)
- 11 53 086 Removing and installing coolant return line (N20, N26)
- 11 53 082 Removing and installing cooling water feed line (N20, N26)
- 11 53 000 Removing and installing or replacing the coolant thermostat (N47D20 K/U/O/T 1)
- 11 53 742 Removing and installing/renewing the coolant pipe (N47D20 K/U/O/T 1)
- 11 53 000 Removing and installing/replacing coolant thermostat (N20, N26)
- 11 53 000 Removing and installing/replacing coolant thermostat (N55)
- Intake Manifold
- 11 61 730 BMW leakage test for air intake system (N20/N26)
- 11 12 800 Cleaning cylinder heat intake channels and intake plenum (N47, N57)
- 11 61 050 Removing and installing air intake plenum (N55 Hybrid)
- 11 61 050 Removing and installing intake plenum (N20, N26)
- 11 61 050 Removing and installing intake plenum (N55)
- 11 61 085 Removing and installing/renewing adjuster (N47D20 K/U/O/T 1)
- 11 61 086 Removing and installing/renewing mixing tube for intake air (N47D20 K/U/O/T 1)
- 11 61 350 Removing and installing/renewing pressure pipe at throttle body (N47D20 K/U/O/T 1)
- 11 61 360 Removing and installing/renewing pressure pipe from exhaust turbocharger to charge air cooler (N47D20 K/U/O/T 1)
- 11 61 550 Removing and installing/renewing the intake plenum (N47D20 K/U/O/T 1)
- 11 61 365 Removing and installing/replacing left-hand charge air duct (N20, N26)
- 11 61 365 Removing and installing/replacing left-hand charge air duct (N55)
- 11 61 365 Removing and installing/replacing left-hand charge air duct (N55 hybrid car)
- 11 61 362 Removing and installing/replacing right charge air line (N20, N26)
- 11 61 362 Removing and installing/replacing right charge-air duct (N55 Hybrid)
- 11 61 362 Removing and installing/replacing right charge-air duct (N55)
- Exhaust Manifold
- Supercharger With Control
- 11 65 300 Adjusting electrical controller drive (wastegate valve) (N55)
- 11 65 020 Removing and installing/replacing exhaust turbocharger (N20)
- 11 65 020 Removing and installing/replacing exhaust turbocharger (N26)
- 11 65 020 Removing and installing/replacing exhaust turbocharger (N55)
- 11 65 310 Removing and installing/replacing blow-off valve (N20)
- 11 65 300 Removing and installing/replacing electric actuator drive (wastegate valve) (N26)
- 11 65 300 Removing and installing/replacing electrical actuator (wastegate valve) (N20)
- 11 65 020 Removing and installing/replacing exhaust turbocharger (N47D20 K/U/O 1)
- 11 65 020 Removing and installing/replacing exhaust turbocharger (N55 Hybrid)
- 11 61 365 Removing and installing/replacing left-hand charge air duct (N20, N26)
- 11 61 365 Removing and installing/replacing left-hand charge air duct (N55)
- 11 61 365 Removing and installing/replacing left-hand charge air duct (N55 hybrid car)
- 11 61 362 Removing and installing/replacing right charge air line (N20, N26)
- 11 65 020 Turbocharger damage due to blocked oil supply lines
- Vacuum Pump
- 11 66 521 Checking function of vacuum system (N20)
- 11 66 521 Checking function of vacuum system (N55)
- 11 66 000 Removing and installing/replacing the vacuum/oil pump (N47D20 K/U/O/T 1)
- 11 66 000 Removing and installing/replacing vacuum pump (N20, N26)
- 11 66 000 Removing and installing/replacing vacuum pump (N55 hybrid)
- 11 66 000 Removing and installing/replacing vacuum pump (N55)
- Exhaust Gas RECIRCULATION
- ELECTROVALVE Valve For Exhaust Gas RECIRCULATION
- Emission Control, Oxygen Sensor
- 11 78 610 Replacing monitoring sensor (N55 hybrid car)
- 11 78 610 Replacing monitoring sensor (N55)
- 11 78 510 Replacing oxygen control sensor (N55 hybrid car)
- 11 78 510 Replacing oxygen control sensor (N55)
- 11 78 510 Replacing oxygen control sensors (N20, N26)
- 11 78 610 Replacing oxygen monitoring sensors (N20, N26)
- 11 74 507 Replacing the pressure converters for exhaust turbocharger (N20)
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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