Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI1998A8 SEDAN (4D2) V8-3.7L (AEW)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTFUEL DELIVERY AND AIR INDUCTIONFUEL PUMPSERVICE AND REPAIRFUEL DELIVERY MODULE AND FUEL LEVEL SENDERS, REMOVE/INSTALL
1998 Audi A8 Sedan (4D2) V8-3.7L (AEW)
Fuel Delivery Module and Fuel Level Senders, Remove/Install
1998 Audi A8 Sedan (4D2) V8-3.7L (AEW)SECTION Fuel Delivery Module and Fuel Level Senders, Remove/Install
WARNING!
Fire hazard. DO NOT smoke or work near heaters of have anything in the area that can ignite fuel.
1 - Sealing ring
- Always replace
- When installing, install seal (dry) in opening in fuel tank
2 - Fuel delivery module
- Removing and installing.
- Checking fuel pump (electrical test), refer to "Fuel Pump, Electrical Testing" Testing and Inspection
- Checking holding/residual pressure.
3 - Sealing plug
- Always replace
4 - O-ring
- Always replace
5 - Sender for fuel gauge - G
- Checking resistance values refer to "Instrument Panel, Gauges and Warning Indicators/Fuel Gauge Sender/Testing and Inspection"Testing and Inspection
- Removing and installing
6 - Sealing washer
- Always replace
7 - Spring
8 - Flange for sender fuel gauge - G
- Remove and install using 2012A spanner.
- Turn clockwise to open; turn counterclockwise to close
9 - Banjo bolt-23 Nm
10 - Fuel return pipe
- From fuel injection system
- Clipped onto fuel tank
11 - Fuel supply pipe
- To fuel filter
- Clipped onto fuel tank
12 - Ring nut, 90 Nm
- Remove and install with special tool 3342
13 - O-ring
- Always replace
14 - Securing bolt, 20 Nm
15 - Ring nut, 60 Nm
- Remove and install with special tool 3217
16 - Sender -2- for fuel gauge -G169
- Checking resistance values, refer to "Instrument Panel, Gauges and Warning Indicators/Fuel Gauge Sender/Testing and Inspection"Testing and Inspection
- Removing and installing
17 - O-Ring
- Always replace
18 - Seal ring
- Always replace
- When installing, install seal (dry) in opening in fuel tank
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.