Repair manual

Introduction

Technical Description

Four Cylinder, Four Valve, FSI

Turbocharged Gasoline Engine

Engine Block

– Cast Iron Crankcase

– Balancer Shafts in Crankcase

– Forged Steel Crankshaft

– Self-Regulating 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

– Audi Valve Lift System (AVS) on exhaust camshaft only

Intake Manifold

– Tumble Flap

Fuel Supply

– Demand Controlled on Low and High-pressure Ends

– Multi-Port High-Pressure Injector

Engine Management

– MED 17 Engine Control

– Hot-Film Air Mass Flow 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