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Audi A4
Repair manual

Fuel Supply Audi A4 B6

Step-by-step instructions on "Fuel Supply" for Audi A4 B6 (2000–2006). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

General information

General repair notes

Safety precautions

Rules for cleanliness

Fuel tank with attachments, component overview

Installation position of ground connection

Special tools and equipment

Work sequence

Removing

Sedan

Avant

Vehicles with hose connection

Vehicles with plug-in coupling

All models

Fuel system with return line

Fuel system without return line

Installing

Fuel delivery unit and fuel gauge sender, component overview

Releasing connector

Requirements for test

Test sequence

Vehicles with 4-cylinder Turbo engine

Fuel Tank Lock Switch -F314

All vehicles

Position of ground connection

Fuel system with return pipe

Fuel system without return pipe

Part I

Part II

Suction jet pump, function

Electrical test for Fuel Tank Lock Switch -F314

Fuel filter, servicing

Vehicles with 6-cyl. and 8-cyl. engine as of 07.2003

EVAP canister/leak detection system, servicing (front-and all-wheel drive vehicles)

EVAP canister, removing and installing

EVAP canister and Leak Detection Pump (LDP), hose diagram (4-cylinder engines)

Installation position of T-piece

EVAP canister and Leak Detection Pump (LDP), hose diagram (6-cylinder engines)

EVAP canister and Leak Detection Pump (LDP), hose diagram (8-cylinder engines)

Installation location of separating point

Function

Evaporative Emission (EVAP) system, automatic diagnostic leak test

Test requirements

DTC display

Vehicles with all-wheel drive

Description

Test EVAP system using Leak detection pump (LDP) -V144

Perform EVAP tester self-test

Calibrate KLI9210 Tester

Test fuel cap

Test Leak detection pump (LDP) -V144- for internal leaks

Test EVAP System

Continued for all vehicles

Method 1: Locate leak with smoke generator

Checking activation

Checking voltage supply

Test requirement

Accelerator linkage, servicing

Vehicles with automatic transmission

Requirements