Home/Audi/A6/Audi A6 C5 facelift (2001-2004)/Repair manual/Fuel Supply System - All Engines/Removing

Contents

Wiring diagrams Section: Fuel Supply System - All Engines

General repair notes

Safety precautions

Rules of cleanliness

Fuel supply, Front Wheel Drive (FWD)

Checking procedure of Ground (GND) connection

Removing

Work sequence

B - Procedure on fuel tank that contains less than 3/4fuel

Vehicles with level control system

Installing

Checking procedure

Fuel supply, All Wheel Drive (AWD)

B - Procedure on fuel tank less than 1/4 full

Fuel tank with attachments, removing and installing - vehicles with 8-cylinder engine except A6 allroad

Part I

Function

Voltage supply for Fuel Pump (FP) -G6- (of the Fuel Pump (FP) Control Module -J538-), checking

Fuel pump (FP) -G6-, removing and installing

Vehicles with build date up to approx. 02/99

Vehicles with build date as of approx 02/99

Sender for fuel gauge -G-, removing and installing

Fuel Level Sensor 2 -G169-, removing and installing

Fuel Supply Sensor 3 -G237-, removing and installing

Audi A6

Limosine

Avant

Emission Evaporative (EVAP) canister, removing and installing

Error display

Method 1: Locate leak with smoke generator

Method 2: Locate leak with ultrasonic tester

Checking fuel supply and tank ventilation system for leaks

Accelerator pedal cable, removing and installing

Vehicles with automatic transmission

Vehicles with manual transmission

Accelerator pedal cable, adjusting

All vehicles

Accelerator Pedal (AP), servicing - vehicles with Electronic Power Control (EPC) (drive by wire)

All sections

Removing Audi A6 C5 facelift

Fuel Supply System - All Engines 1 illustration

Removing

Fuel tank removing, see «FUEL TANK WITH ATTACHMENTS, REMOVING AND INSTALLING»(ref-196266-S20028614712005100800000) .
To remove unclip valve (laterally) from expansion tank.

Scheme 189

Scheme 189: Checking

Scheme 189: Checking

Close flange -3- with hand. (Scheme 189)
Blow into flange -1-: Knob -2- in rest position: It should not be possible to blow through Knob -2- pressed in direction of arrow: It must be possible to blow through.