Technical Description; Introduction - Volkswagen Golf Diesel 2009 Mode D'emploi

Technical Description

Four Cylinder, Four Valve, TSI Turbocharged
Gasoline Engine
Engine Block
– Cast iron crankcase
– Balancer shafts in crankcase
– Forged steel crankshaft
– Sump-mounted oil pump — chain-driven by
crankshaft
– Timing gear chain — front end of engine
– Balancer — chain-driven at front end of engine
Cylinder Head
– 4-valve cylinder head
– 1 INA intake camshaft adjuster
Intake Manifold
– Tumble fl ap
Fuel Supply
– Demand controlled on low and high-pressure ends
– Multi-port high-pressure injector

Introduction

Engine Management
– MED 17 .5 engine control module
– Hot-fi lm air mass fl ow with integral temperature
sensor
– Throttle valve with contactless sensor
– Map-controlled ignition with cylinder-selective,
digital knock control
– Single-spark ignition coils
Turbocharging
– Integral exhaust turbocharger
– Charge-air cooler
– Boost pressure control with overpressure
– Electrical wastegate valve
Exhaust
– Single-chamber exhaust system with close-
coupled pre-catalyst
Combustion Process
– Fuel straight injection
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