Also worth reading: Best Used Audi Models, Audi A4 Buying Guide and Audi Q5 Buying Guide.
Short answer: Audi builds some of the best-driving and best-feeling cars in the used market — but ownership costs are high, and the 2.0T EA888 timing chain (gen 1–2) and older 3.0T supercharged V6 have specific issues that make service history critical.
Bottom line: Audi builds some of the best-driving and best-feeling cars in the used market — but ownership costs are high, and the 2.0T EA888 timing chain (gen 1–2) and older 3.0T supercharged V6 have specific issues that make service history critical.
Buy the newest generation of the engine you can afford. Gen 3 EA888 (2013+) is a very different engine from gen 1–2. Same with S-line cars — the newer, the better.
Generations that have earned a strong long-term reputation.
| Model | Reliability | Maintenance | Verdict |
|---|---|---|---|
| A4 | 3.8/5 · Good | 3.3/5 · Average | Prefer B9 (2017+) with gen-3 EA888. B8 (2008–2016) rewards records — verify tensioner service. |
| Q5 | 3.8/5 · Good | 3.3/5 · Average | The 2018+ Q5 with gen-3 EA888 is the safest pick. Older 2013–2017 examples need tensioner verificat… |
Not deal-breakers — but they reward a careful buyer.
Timing chain tensioner failure on gen 1–2 EA888 was a defining issue. Later gen 3 (2013+) revised the tensioner and is dramatically better. Verify tensioner history.
Supercharger snout bearing, injector, and thermostat are known service items. Excellent engine when maintained.
Diesel emissions settlement affected 2009–2016 Audi diesels. Verify buyback status and any modifications.
Powertrains that have earned a bulletproof reputation.
A3, A4, A5, Q5. Revised timing chain tensioner and reduced oil consumption. The safest 4-cyl Audi engine.
S4, S5, A6, A7, Q7. Refined, powerful — has specific service needs but rewards maintenance.
S4/S5 B9. Twin-scroll turbo replaced the supercharger — refined and durable.
Not deal-breakers — but they reward a careful buyer.
Timing chain tensioner failure. Serviceable but a critical repair to verify.
Diesel emissions settlement. Verify buyback and any post-settlement work.
Carbon buildup, timing chain on early builds. Rewarding to own — expensive to own.
Bring this list to your pre-purchase inspection.
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Audi routine maintenance is expensive at the dealer. Independent Audi/VAG specialists cut those costs and know the platforms intimately — always the smarter choice out of warranty.
The single biggest cost lever is fluid service: engine oil at 5,000 miles, DSG or ZF transmission fluid every 60k, cooling system service proactively. Skipping these is what turns Audi ownership horror stories into memes.
A used Audi can be a genuinely great car — with records. The important buying factors are:
Audi builds some of the best-driving and best-feeling cars in the used market — but ownership costs are high, and the 2.0T EA888 timing chain (gen 1–2) and older 3.0T supercharged V6 have specific issues that make service history critical.
Well-maintained Audi models routinely reach high mileage — the EA888 gen 3 (2.0T, 2013+) is commonly good for 200k+ miles with records to back it up. Service history matters far more than the odometer reading.
Audi routine maintenance is expensive at the dealer. Independent Audi/VAG specialists cut those costs and know the platforms intimately — always the smarter choice out of warranty.
The A4, Q5 and S4 / S5 have the strongest long-term records in the Audi lineup. Pair the right model with the right model year and you avoid most of the brand's known trouble spots.
A used Audi can be a genuinely great car — with records. The important buying factors are:
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