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4L SUV

Audi Q7 · SUV · 2005–2015

First Q7 — heavy but hugely capable, including the V12 TDI.

Production run

2005–2015

Engines covered

3

Avg. part price

—

19902026

Interactive systems map

Inspect the 4L

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

Engine1

Cooling2

Intake3

Exhaust1

Documented issues per engine

4

4.2 V8

5

3.0T

5

3.0 TDI

Known weak points

What breaks on the 4L

Timing chain tensioners (front-of-engine job)Diagnose →Carbon buildup on FSI versionsDiagnose →Supercharger coupler wearDiagnose →Thermostat failureDiagnose →Swirl flap motorDiagnose →EGR coolerDiagnose →

Guides & playbooks

4L playbooks

Maintenance scheduleGive me a mileage-based maintenance schedule for a Audi Q7 4L, including the items the factory schedule skips.Buyer's inspectionI'm inspecting a used Audi Q7 4L. What exactly should I check, test drive and look for underneath?Build planPlan a staged performance build for a Audi Q7 4L that stays reliable as a daily driver.Fault code lookupI have a fault code on my Audi Q7 4L. Walk me through what it means and how to confirm the cause.

Fits your 4L

Parts & tools

Full catalog & export

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