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D4 Sedan

Audi A8 · Sedan · 2010–2017

Air-sprung flagship with the hot-vee V8.

Production run

2010–2017

Engines covered

3

Avg. part price

—

19902026

Interactive systems map

Inspect the D4

Tap a hotspot to inspect that system

Systems map

Where it goes wrong

Each numbered hotspot counts the documented failure points in that area. Select one to see the specifics for this chassis and engine.

Failure points by system

Cooling3

Intake4

Exhaust1

Documented issues per engine

5

3.0T

4

4.0 TFSI

5

3.0 TDI

Known weak points

What breaks on the D4

Supercharger coupler wearDiagnose →Thermostat failureDiagnose →Turbo oil lines and coolant pipes in the veeDiagnose →Carbon buildupDiagnose →Swirl flap motorDiagnose →EGR coolerDiagnose →

Guides & playbooks

D4 playbooks

Maintenance scheduleGive me a mileage-based maintenance schedule for a Audi A8 D4, including the items the factory schedule skips.Buyer's inspectionI'm inspecting a used Audi A8 D4. What exactly should I check, test drive and look for underneath?Build planPlan a staged performance build for a Audi A8 D4 that stays reliable as a daily driver.Fault code lookupI have a fault code on my Audi A8 D4. Walk me through what it means and how to confirm the cause.

Fits your D4

Parts & tools

Full catalog & export

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