A4 Mk3
| Fuel delivery unit and fuel gauge sender - exploded view |
| 1 - | Threaded ring |
| 2 - | Seal |
| q | Renew |
| q | Install dry |
| 3 - | Speed nut |
| 4 - | Fuel pump control unit -J538- |
| q | Removing and installing → Chapter |
| 5 - | Bolt |
| q | 2.5 Nm |
| 6 - | Electrical connector |
| q | For fuel pump control unit -J538- |
| 7 - | Electrical connector |
| q | For fuel system pressurisation pump -G6- and fuel gauge sender -G- |
| 8 - | Electrical connector |
| q | Only on vehicles with auxiliary heater: for metering pump for auxiliary heater |
| 9 - | Fuel line |
| q | To engine |
| q | Do not kink |
| q | To disconnect from flange, press release tab on connection |
| q | Clipped onto fuel tank |
| 10 - | Fuel line |
| q | Only on vehicles with auxiliary heater: leading to metering pump for auxiliary heater |
| q | Do not kink |
| q | To disconnect from flange, press release tab on connection |
| q | Clipped onto fuel tank |
| 11 - | Cap |
| q | For vehicles without auxiliary heater |
| 12 - | Union nut |
| q | Renew |
| q | 120 Nm |
| q | Loosen and tighten with union nut tool -T40068 A- |
| 13 - | Fuel delivery unit |
| q | Checking fuel pump (electrical test) → Chapter |
| q | Removing and installing → Chapter |
| q | Put at least 5 litres of fuel into tank after installing |
| q | Checking residual pressure → Rep. gr.24 |
| 14 - | Suction pipe |
| 15 - | Fuel gauge sender -G- |
| q | Checking resistance values → Chapter |
| q | Removing and installing → Chapter |