Best Used Audi Under $20,000: Top Luxury Sedans & SUVs to Buy
You’ve got $20,000 saved and a thirst for German engineering. But can you really afford a used Audi without breaking the bank on repairs?
The short answer is yes — but you have to choose wisely. Some used Audis are bargains that deliver luxury driving for years to come. Others are money pits waiting to happen. This guide breaks down the best used Audi models you can buy under $20,000, what to look for, and which years to avoid.
TLDR: Your $20K Audi Shopping List
If you’re in a hurry, here are the top picks:
- Best compact sedan: 2015–2016 Audi A3 2.0T Quattro — stylish, fun, and under budget
- Best midsize sedan: 2013–2016 Audi A4 B8.5 with the 2.0 TFSI — reliable and refined
- Best luxury SUV: 2017 Audi Q3 or 2015–2016 Audi Q5 — premium SUVs you can actually afford
- Best sporty coupe: 2013 Audi A5 — sleek looks with great reliability scores
- Best bargain: 2010 Audi A6 — executive luxury for under $10,000
Key Takeaways
- Your sweet spot is 2013–2017 models — new enough for modern tech but old enough to fit your budget
- The 2.0 TFSI engine (post-2012) is your friend — earlier versions had oil consumption issues
- Quattro all-wheel drive is worth the premium — it’s what makes an Audi an Audi
- Budget an extra $1,000–$2,000 for immediate maintenance — timing chain tensioner, DSG service, and oil changes add up
- Always get a pre-purchase inspection — this isn’t optional on a used German car
Top Audi Picks Under $20,000
2015–2016 Audi A3 2.0T Quattro: The Compact Bargain
Here’s where things get interesting. The second-generation Audi A3 (2015–2020) offers genuine luxury in a compact package. And the best part? You can find excellent examples well under your $20,000 budget.
A 2016 A3 Sedan 2.0T Prestige Quattro typically sells for around $10,400 on average, with prices ranging from $5,000 to $26,000 depending on mileage and condition . For $20,000, you can land a sub-60,000-mile unit with plenty of cash left for maintenance .
What makes it great:
- The 2.0-liter turbocharged engine produces 220 horsepower and 258 lb-ft of torque
- Quattro AWD gives you confidence in any weather
- The EA888 engine is one of the most mass-produced turbo engines in the industry — easy to diagnose and repair
Watch out for:
- The 2017 refresh had more tech problems — J.D. Power data shows reliability dropped from “Great” (86/100) to “Average” that year
- Check for oil leaks from the oil filter housing, oil pan, and upper timing cover
- Water pump and thermostat housings are common leak sources
- Strictly enforce the 40,000-mile DSG fluid and filter change interval
2013–2016 Audi A4 B8.5: The Goldilocks Sedan
The A4 is Audi’s bread-and-butter sedan, and the B8.5 generation (2013–2016 facelift) is widely considered the sweet spot for used buyers . With an average price of $12,758 and a J.D. Power reliability score of 87/100, this is a smart buy .
Consumer Reports named the 2019 Audi A4 one of the best small used cars you can buy, with a price range of $14,725 – $18,025 . The smooth 2.0-liter turbo paired with a 7-speed dual-clutch delivers punchy acceleration and 28 mpg on average .
What makes it great:
- The B8.5 facelift (2012–2016) with the CJEB engine is the most reliable version
- Excellent noise isolation and a comfortable ride
- Spacious cabin and available Avant (estate) version with 490 liters of boot space
Watch out for:
- Avoid the early 2.0 TFSI BWT engine (2007–2009) — it has known severe oil consumption issues
- Check for DSG (S tronic) shudder at low speeds — fluid changes are mandatory every 60,000 km
- Xenon headlight control units can fail on later B8 models ($200–400 to replace)
2015–2016 Audi Q5: The Luxury SUV That Fits
The Q5 is Audi’s best-selling model for good reason . A 2016 Audi Q5 can be found around the $17,000 mark . The second-generation Q5 (2017+) is the safest bet, but prices may stretch your budget .
What makes it great:
- Late first-generation models (2015–2016) delivered fewer major issues and benefited from engine refinements
- The petrol Q5 ranked much higher in reliability than the diesel in What Car? surveys (95.6% vs 87.1%)
- Petrol Q5s were quicker and cheaper to fix — 100% of repairs were done for free under warranty, compared to 75% for diesels
Watch out for:
- Annual repair costs average $928 — higher than many competitors
- Owners visit the shop 1.2 times per year, nearly double the average for other luxury SUVs
- Oil consumption issues are common on 2011–2014 models — avoid these years
- Check for sunroof leaks and shattering issues on early models
- Timing chain tensioner failure can cause catastrophic engine damage — make sure it’s been upgraded
2013 Audi A5: The Sleek Coupe
If you want style and reliability, the 2013 Audi A5 delivers. With an average price of $15,778 and a reliability score of 86/100 from J.D. Power, it’s a solid choice .
What makes it great:
- Available in coupe and convertible body styles
- Great cabin with seating for four
- Aged gracefully — still turns heads today
Watch out for:
- The second row is small in both body styles
- Trunk space is good for a coupe but limited compared to sedans
2010 Audi A6: The Executive Bargain
Want executive luxury for the price of a used Corolla? The 2010 Audi A6 averages just $9,150 with a solid reliability score of 89/100 .
What makes it great:
- Genuine large luxury sedan experience
- quattro AWD capability
- C7 generation (2011–2018) with 2.0 TDI Ultra or 3.0 TDI is the most popular used choice
Watch out for:
- Higher maintenance costs due to age
- Air suspension failures on equipped models (compressor: $300–600, air bag: $400–800, control unit: $500–1,500)
- 3.0 TDI piezo injectors can fail after 150,000–200,000 km ($400–700 per injector)
- DSG fluid change is MANDATORY every 60,000 km — skip it and risk transmission failure ($2,000–5,000 repair)
Comparison Table: Best Used Audis Under $20,000
| Model | Year | Avg. Price | Reliability Score | Engine | Horsepower | Best Feature |
|---|---|---|---|---|---|---|
| Audi A3 2.0T Quattro | 2016 | ~$10,400 | Great (86/100) | 2.0L Turbo I4 | 220 hp | Compact luxury, fun to drive |
| Audi A4 B8.5 | 2013–2016 | ~$12,758 | Great (87/100) | 2.0L Turbo I4 | 180–220 hp | Best all-rounder sedan |
| Audi Q5 (Gen 1 Late) | 2015–2016 | ~$17,000 | Average (3.0/5.0) | 2.0L Turbo I4 | 220 hp | Affordable luxury SUV |
| Audi A5 | 2013 | ~$15,778 | Great (86/100) | 2.0L Turbo I4 | 211 hp | Sporty coupe styling |
| Audi A6 | 2010 | ~$9,150 | Great (89/100) | 3.0L V6 | 300 hp | Executive bargain |
Audi Reliability: The Real Story
Audi’s reputation is… complicated. According to RepairPal, Audi has a reliability rating of 3.0 out of 5.0, ranking 28th out of 32 brands . But here’s the nuance: the average annual repair cost is $987, which is $330 more than the average for all car brands . Audi owners also visit the shop about 0.8 times per year — nearly double the average of 0.4 times .
The good news? Not all Audis are created equal. The A3 has a reliability rating of 3.5 out of 5.0 and ranks 4th out of 17 luxury compact vehicles, with annual repair costs of $741 . The A4 Quattro and Q5 cost more to maintain ($925–$928 annually) and have lower reliability scores .
7 Essential Tips Before Buying a Used Audi
- Check the service history religiously — A well-maintained Audi with records is worth paying a premium for. Skipped services are a major red flag
- Avoid early 2.0 TFSI engines (pre-2012) — The BWT engine code (2007–2009) and early Gen1/Gen2 EA888 engines have severe oil consumption issues
- Confirm DSG (S tronic) fluid changes — This is mandatory every 40,000 miles (60,000 km). If there’s no proof, walk away — transmission repairs cost thousands
- Get a pre-purchase inspection from a specialist — A $200–300 inspection can save you thousands in hidden repairs
- Check for water damage — Sunroof drainage tubes clog on many models, causing water to leak into the cabin. Look for stains or mold
- Plan for immediate maintenance — Budget $1,000–2,000 for timing chain tensioner replacement, oil changes, and fluid flushes
- Scan with an OBD diagnostic tool — If the seller won’t let you scan it, that’s a red flag
Frequently Asked Questions (FAQ)
1. What’s the most reliable used Audi under $20,000?
The 2015–2016 Audi A3 2.0T Quattro and the 2013–2016 Audi A4 B8.5 are the top picks. Both have “Great” reliability scores (86–87/100) from J.D. Power .
2. Is the Audi Q5 reliable used?
The petrol Q5 is more reliable than the diesel. The 2015–2016 first-generation models are the best used buys, while 2017+ second-generation models are the safest bet overall .
3. Are Audis expensive to maintain?
Yes — average annual repair costs are $987 compared to the industry average of $657. Audi owners visit the shop nearly twice as often as the average driver .
4. Which Audi years should I avoid?
- 2009 Q5: First-year teething problems with multiple recalls
- 2012 Q5: Massive spike in technical service bulletins — widespread issues
- 2013–2014 Q5: Infamous for excessive oil consumption
- 2007–2009 2.0 TFSI: Severe oil consumption issues
5. What’s the best used Audi for a first-time buyer?
The 2016 Audi A3 2.0T Quattro. It’s affordable ($10,400 average), has great reliability, and the EA888 engine is well-understood by independent mechanics .
6. How much should I budget for maintenance?
Expect $741–$987 per year for unscheduled repairs depending on the model . Budget an extra $1,000–2,000 immediately for any deferred maintenance the previous owner skipped .
7. Is a used Audi better than a used BMW or Mercedes?
Audi reliability is roughly level with BMW and Mercedes — mid-pack among premium brands . The best choice depends on the specific model and year rather than the brand badge.
Sources & Further Reading:
- Audi USA Official Website
- Consumer Reports Used Car Guide
- Edmunds Audi Reviews & Pricing
- RepairPal Audi Maintenance Costs
Shopping for a used Audi is an adventure. Found a great deal or have a horror story to share? Drop it in the comments — your experience could help someone else avoid a costly mistake!
