My GarageIs Audi reliable?
Verdict scores Audi 3.5/5 overall, and the A4, Q5 and S4 / S5 carry the lineup's strongest records. Reliability here tracks the specific model, engine and model year far more closely than the badge.
Buyer's Guide · Audi
Is Audi Reliable? A Used Buyer's Guide
4 min read
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.
Quick Verdict
- Overall reliability
- 3.5/5 · Good
- Most reliable models
- A4 (B9, 2017+), Q5 (2018+, 2nd gen), S4 / S5 (B9, 2018+)
- Research carefully
- A4 / A5 (B8, 2008–2016, EA888 gen 1–2), S4 / S5 (B8, 2010–2016, 3.0T Supercharged), Q5 / Q7 with 3.0 TDI
- Ownership cost
- 3.0/5 · Average
- Maintenance difficulty
- 3.0/5 · Average
- Parts availability
- 3.8/5 · Good
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.
Overall Verdict
★★★★★3.5/5
Audi rewards a mechanical enthusiast with records. The chassis, interior, and drivetrain are excellent; the maintenance burden is real, and a neglected Audi is one of the fastest depreciating vehicles you can buy.
Maintenance
★★★★★3.0/5
Parts availability
★★★★★3.8/5
Ownership cost
★★★★★3.0/5
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.
Top Picks
Best Used Audi Models
Generations that have earned a strong long-term reputation.
A4 (B9, 2017+)
The sensible Audi
Pros
- • Gen 3 EA888 2.0T is much improved
- • Refined chassis
- • Quattro AWD
Watch for
- • Direct-injection carbon buildup at 60k+
Q5 (2018+, 2nd gen)
Right-sized luxury crossover
Pros
- • Gen 3 EA888
- • Excellent interior
- • Comfortable
Watch for
- • Air suspension option is expensive when it fails
S4 / S5 (B9, 2018+)
The tuner-tempting sport sedan
Pros
- • Turbo 3.0L V6 (EA839) replaced supercharged engine
- • Excellent AWD
Watch for
- • Check for tune history
A6 (C7 2012–2018)
The understated flagship
Pros
- • Supercharged 3.0T is refined
- • Excellent interior
Watch for
- • Supercharged V6 has specific service needs
Q7 (2017+, 2nd gen)
3-row family luxury
Pros
- • Refined V6
- • Excellent driver's SUV
Watch for
- • Air suspension expense
- • Complex electronics
TT (Mk3, 2016+)
Small coupe with soul
Pros
- • Simple, focused chassis
Watch for
- • Discontinued — parts availability planning
Side by side
Used Audi models compared
| 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… |
Do your homework
Models to Research Carefully
Not deal-breakers — but they reward a careful buyer.
A4 / A5 (B8, 2008–2016, EA888 gen 1–2)
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.
S4 / S5 (B8, 2010–2016, 3.0T Supercharged)
Supercharger snout bearing, injector, and thermostat are known service items. Excellent engine when maintained.
Q5 / Q7 with 3.0 TDI
Diesel emissions settlement affected 2009–2016 Audi diesels. Verify buyback status and any modifications.
Engines
Best Audi Engines
Powertrains that have earned a bulletproof reputation.
★★★★★
EA888 gen 3 (2.0T, 2013+)
Typical lifespan: 200k+ miles
A3, A4, A5, Q5. Revised timing chain tensioner and reduced oil consumption. The safest 4-cyl Audi engine.
★★★★★
3.0T Supercharged V6 (2010–2016)
Typical lifespan: 200k+ miles
S4, S5, A6, A7, Q7. Refined, powerful — has specific service needs but rewards maintenance.
★★★★★
EA839 3.0T (2018+)
Typical lifespan: 200k+ miles
S4/S5 B9. Twin-scroll turbo replaced the supercharger — refined and durable.
Do your homework
Engines to Research Carefully
Not deal-breakers — but they reward a careful buyer.
EA888 gen 1–2 (2008–2012)
Timing chain tensioner failure. Serviceable but a critical repair to verify.
3.0 TDI (2009–2016)
Diesel emissions settlement. Verify buyback and any post-settlement work.
4.2L FSI V8 (RS4, S5 V8)
Carbon buildup, timing chain on early builds. Rewarding to own — expensive to own.
Inspection checklist
Common Problems
Bring this list to your pre-purchase inspection.
- ✓Timing chain tensioner on gen 1–2 EA888
- ✓Direct-injection carbon buildup (all DI Audi engines)
- ✓Water pump around 80k on 2.0T
- ✓PCV valve on 2.0T
- ✓Air suspension leaks on Q7 / A8
- ✓Electronic gremlins (MMI, sensors)
Ownership
Maintenance Costs
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.
The Verdict
Should You Buy a Used Audi?
A used Audi can be a genuinely great car — with records. The important buying factors are:
- • Engine generation — gen 3 EA888, EA839 are safest
- • Timing chain tensioner history on older 2.0T
- • Complete service records (fluid changes, not just intervals)
- • Air suspension condition if equipped
- • Modification history — tuned Audis are much higher risk
People Also Ask
Which Audi is most reliable?
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.
Should I buy a used Audi?
Yes, with the usual condition: buy the right model and year rather than the brand — start with the A4, Q5 and S4 / S5. Records and an independent pre-purchase inspection decide the outcome more than anything on the window sticker.
Frequently Asked Questions
Are Audis reliable?
Verdict scores Audi 3.5/5 overall. Reliability tracks the individual model, engine and model year much more closely than the badge does, and the sections below name which is which.
Are Audis expensive to maintain?
Maintenance rates 3.0/5 across the Audi lineup, with parts widely available. Costs separate by model and engine rather than by badge.
Which Audi models last the longest?
The A4, Q5, S4 / S5 have the strongest long-term track records in the Audi lineup.
Should I buy a used Audi?
Yes — provided you shop by model and year rather than by badge. Start with the recommended models above, insist on service records, and have an independent shop inspect the specific car.
What are the most common Audi problems?
The issues that come up most often on used Audis are: Timing chain tensioner on gen 1–2 EA888; Direct-injection carbon buildup (all DI Audi engines); Water pump around 80k on 2.0T; PCV valve on 2.0T; Air suspension leaks on Q7 / A8.
Which Audi engine is the most reliable?
EA888 gen 3 (2.0T, 2013+) — A3, A4, A5, Q5. Revised timing chain tensioner and reduced oil consumption. The safest 4-cyl Audi engine.
Are there any Audi models to avoid?
None are outright avoids, but A4 / A5 (B8, 2008–2016, EA888 gen 1–2), S4 / S5 (B8, 2010–2016, 3.0T Supercharged), Q5 / Q7 with 3.0 TDI deserve a more careful pre-purchase inspection.
How long do Audi vehicles typically last?
A well-maintained Audi from the recommended years should comfortably clear 200,000 miles, and the strongest powertrains in the lineup regularly see 300,000+.
You may also want to research
Found one for sale?
Don't stop at researching the model.
Analyze the actual car you're considering with Verdict.