Should I Buy a Used Audi A4?
The 2017 Audi A4 is a genuinely excellent car to drive — refined, quick, and loaded with tech. But used Audis have a reputation for expensive maintenance. Here's what that actually means in dollars.
2017 Audi A4 Overview
The B9-generation A4 (2017–2020) was a complete redesign featuring Audi's MLB platform, the 2.0L TFSI turbocharged four-cylinder (252 hp), and Quattro AWD on most trims. It's genuinely one of the best-driving cars in its class. Used prices range $18,000–$27,000 depending on mileage and trim. The catch: once out of warranty, repair costs can be 2–3× what you'd pay on a domestic equivalent.
Common Problems to Watch
- Oil consumption (2.0T EA888): Audi's 2.0T engine is known to consume oil between changes. Check the dipstick on every visit — up to 1 quart per 1,000 miles is within Audi's "acceptable" range (though it shouldn't be).
- Timing chain tensioner: Can fail prematurely if oil changes are delayed. Always verify the service history. Replacement is $1,500–$2,500 at an Audi dealer.
- Carbon buildup (direct injection): Without port injection to clean valves, carbon accumulates after 60,000–80,000 miles. Walnut blasting ($400–$800) is the standard fix.
- DSG/S-tronic transmission: S-tronic dual-clutch transmission is excellent when maintained but requires periodic fluid changes (every 40,000 miles). Neglected units can slip or shudder.
- Electrical gremlins: MMI infotainment issues, sensor failures, and mild HVAC control problems appear in owner forums for this generation.
What to Inspect
Get a pre-purchase inspection at an independent Audi/VW specialist (not a quick-lube shop). They should check for oil leaks at the valve cover gasket and timing cover, read all fault codes with VCDS software, inspect the DSG transmission fluid condition, and verify all four Quattro driveshafts and CV boots. Ask for the complete service record — skipped oil changes on the EA888 engine are a walk-away signal.
Reliability Verdict
The 2017 A4 is an above-average car with below-average used-car economics. It's a great buy if you find a well-maintained example with full service history, ideally from a one-owner who used an Audi dealer. It's a potential money pit if maintenance was skipped. Our verdict tool flags high-risk configurations.
FAQ: 2017 Audi A4
Yes — plan for 40–60% higher maintenance costs than a comparable Honda or Toyota. Oil changes alone run $100–$150, and major repairs require specialized tooling.
Yes — if the price reflects the risk and the car has a clean service history. A $20,000 A4 with no service records is not the same as a $24,000 one with dealer stamps. Our tool accounts for this.
Strongly consider it. Third-party extended warranties can be worth the cost on German luxury cars. Factor the premium into your total cost calculation.