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BMW B48TU - User Manual

BMW B48TU
41 pages
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Technical Training
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without the express written consent of BMW of North America, LLC ("BMW NA").
Copyright © 2018 BMW of North America, LLC
B46TU/B48TU
ENGINES
Reference Manual
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Summary

Introduction to B46 TU;B48 TU Engines

Technical Data

Key technical specifications for the B46TU and B48TU engines, including power, torque, and dimensions.

Engine Mechanical

Crankshaft Drive

Explanation of the crankshaft drive system, including the crankshaft, connecting rod, and chain drive.

Connecting Rod

Detailed description of the connecting rod, its components, and materials used, including IROX coating.

Cooling System

Split Cooling

Explanation of the split cooling concept, its function using the Split Cooling Valve (SCV) for faster warm-up.

Fuel System

Fuel High-Pressure Pump

Detailed explanation of the single-piston high pressure pump (HDP6), its modifications and operation at 350 bar.

Summary

Introduction to B46 TU;B48 TU Engines

Technical Data

Key technical specifications for the B46TU and B48TU engines, including power, torque, and dimensions.

Engine Mechanical

Crankshaft Drive

Explanation of the crankshaft drive system, including the crankshaft, connecting rod, and chain drive.

Connecting Rod

Detailed description of the connecting rod, its components, and materials used, including IROX coating.

Cooling System

Split Cooling

Explanation of the split cooling concept, its function using the Split Cooling Valve (SCV) for faster warm-up.

Fuel System

Fuel High-Pressure Pump

Detailed explanation of the single-piston high pressure pump (HDP6), its modifications and operation at 350 bar.

BMW B48TU Specifications

General IconGeneral
Engine TypeInline-4
Displacement1998 cc
TurbochargedYes
Fuel TypePetrol
Fuel InjectionDirect Injection
ConfigurationInline
Bore82 mm
Stroke94.6 mm
AspirationTurbocharged
TurbochargerTwin-scroll turbocharger
Torque240-400 Nm
Max Torque236-332 lb-ft (320-450 Nm)
ValvetrainDOHC
Engine WeightApproximately 150 kg

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