BMW N55 Engine Training Manual PDF Download
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Components/Systems Overview . . . . Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . Full Load Diagram ....
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What's Included
Complete Service Manual
Full PDF documentation
Step-by-Step Procedures
With detailed diagrams
Wiring Diagrams
Electrical schematics included
Specifications
Torque values & specs
Troubleshooting Guides
Diagnostic procedures
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Engine Components/Systems Overview . . . .
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . .
Full Load Diagram . . . . . . . . . . . . . . . . . . . . .
Current Models . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Designation and Engine Identification
Engine Designation . . . . . . . . . . . . . . . . . . .
Breakdown of N55 Engine Designation . .
Engine Identification . . . . . . . . . . . . . . . . . .
Engine Components . . . . . . . . . . . . . . . . . . . . .
Engine Housing . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Block . . . . . . . . . . . . . . . . . . . . . . . . .
Crankcase and Bedplate . . . . . . . . . . . . . . .
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft Main Bearings . . . . . . . . . . .
Pistons and Rings . . . . . . . . . . . . . . . . . . . . . . .
Connecting Rod and Bearings . . . . . . . . . . . .
Oil Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrionic Volume-controlled Oil Pump . . . .
Oil Pump and Pressure Control . . . . . . . . .
Oil Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Filtration and Oil Cooling . . . . . . . . . . . .
Oil Spray Nozzles . . . . . . . . . . . . . . . . . . . . .
Oil Pressure . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Return . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head Cover . . . . . . . . . . . . . . . . . .
Crankcase Ventilation . . . . . . . . . . . . . . . . . . . .
Naturally Aspirated Mode . . . . . . . . . . . . . .
Boost Mode . . . . . . . . . . . . . . . . . . . . . . . . . .
Valvetrain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intake and Exhaust Valves . . . . . . . . . . . . . .
Valve Springs . . . . . . . . . . . . . . . . . . . . . . . . .
Camshafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Timing . . . . . . . . . . . . . . . . . . . . . . . .
VANOS System . . . . . . . . . . . . . . . . . . . . . . . .
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VANOS Solenoid Valves . . . . . . . . . . . . . .
Cam Sensor Wheels . . . . . . . . . . . . . . . . .
Valvetronic III . . . . . . . . . . . . . . . . . . . . . . . . . . .
Phasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Masking . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combustion Chamber Geometry . . . . . .
Valve Lift Adjustment Overview . . . . . . . .
Valvetronic Servomotor . . . . . . . . . . . .
Function . . . . . . . . . . . . . . . . . . . . . . . . . .
Belt Drive and Auxiliarly Components . . . . .
Vibration Damper . . . . . . . . . . . . . . . . . . . . . . .
Air Intake and Exhaust System . . . . . . . . . . .
Air Intake System . . . . . . . . . . . . . . . . . . . .
Intake Manifold . . . . . . . . . . . . . . . . . . . . . .
Fuel Tank Ventilation System . . . . . . . . . .
Exhaust Manifold . . . . . . . . . . . . . . . . . . . .
Turbocharger . . . . . . . . . . . . . . . . . . . . . . . .
Function of the twin scroll turbocharg
Diverter valve . . . . . . . . . . . . . . . . . . . . .
Catalytic Converter . . . . . . . . . . . . . . . . . . .
Exhaust System . . . . . . . . . . . . . . . . . . . . .
Vacuum System . . . . . . . . . . . . . . . . . . . . . . . .
Vacuum Pump . . . . . . . . . . . . . . . . . . . . . . .
Fuel Injection . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Pressure Sensor . . . . . . . . . . . . . . . .
High Pressure Fuel Pump . . . . . . . . . . . . .
Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . .
Cooling System . . . . . . . . . . . . . . . . . . . . . . . .
Components . . . . . . . . . . . . . . . . . . . . . . . .
N55, Cooling System Components . . . .
Oil Cooler . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Passages . . . . . . . . . . . . . . . . . . . .
Engine Electrical System . . . . . . . . . . . . . . .
Circuit Diagram . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Cooling Circuit Diagram . . . . . . . .
Digital Motor Electronics (DME/ECM) . . . . .
Digital Motor Electronics Circuit Diagram
N55, MEVD17.2 Circuit Diagram . . . . . .
Functions . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel supply system . . . . . . . . . . . . . . . . . . .
Fuel quantity control . . . . . . . . . . . . . . . . . .
Boost pressure control . . . . . . . . . . . . . . . .
Engine cooling . . . . . . . . . . . . . . . . . . . . . . .
System Protection . . . . . . . . . . . . . . . . . . . .
Crankshaft Sensor . . . . . . . . . . . . . . . . . . . . . . .
Ignition Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Pressure Sensor . . . . . . . . . . . . . . . . . . . . . .
Oxygen Sensors . . . . . . . . . . . . . . . . . . . . . . . . .
Oxygen sensor before catalytic converter
Oxygen sensor after catalytic converter . .
Hot-film air mass meter . . . . . . . . . . . . . . . .
High Pressure Fuel Injector Valve . . . . . . . . . .
Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Information . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head Cover . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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