2025 Audi S4 Reliability ReportKeepScore 78/100 · top failure points · buy or avoid
Quick Facts · 2025 Audi S4
- Scores 10 points below the strongest nearby year — the 2024 Audi S4 earns a 88.
- The system most likely to surface first: engine accessory systems (moderate severity).
- No active NHTSA safety recalls on record — a clean recall slate for the 2025 model year.
2025 Audi S4: Buy or Avoid?
The 2025 Audi S4 offers thrilling performance and sophisticated luxury, but it comes with the typical high-performance German car caveat: expect higher-than-average running costs and be prepared for potential complex repairs down the line. While generally well-engineered, its advanced systems and powerful engine mean that when issues arise, they can be costly and require specialized attention.
The 2025 Audi S4 is an outstanding performance luxury sedan, delivering a compelling blend of speed, comfort, and style. However, its sophisticated engineering and high-performance nature translate directly into a need for meticulous, potentially expensive, maintenance and repairs. Buy it for the driving experience,…
Best Model Years
2022-2025 (late B9/early B10 generations benefit from continuous refinement)
Years to Avoid
None specifically, but earlier B9 models (2018-2019) had more reported initial glitches that were largely resolved via software updates.
Biggest Strengths
- Robust core engine (EA839) with proper maintenance
- Excellent ZF 8-speed automatic transmission
- High-quality interior materials and fitment
2025 Audi S4 — Known Trouble Spots
The systems that tend to fail first on the 2025 Audi S4, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.
The EA839 V6, while strong, can develop issues with its integrated PCV valve and water pump. These failures lead to coolant leaks, oil consumption, and potential vacuum system faults, impacting performance and engine longevity if neglected.
Audi's sophisticated MMI infotainment and various driver-assist systems are prone to software glitches, sensor malfunctions (e.g., parking sensors, blind-spot monitoring), and occasional parasitic battery drains. These are often frustrat…
For S4s equipped with adaptive damping, the electronically controlled shocks and their associated modules can fail. This results in reduced ride comfort, compromised handling, and an expensive replacement cost per corner.
2025 Audi S4 Mileage Danger Zones
The mileage windows when the 2025 Audi S4 most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Low Risk Zone
At this mileage, the car is still very new. Most issues would be covered under warranty, typically limited to software glitches or minor sensor failures that are easily resolved. Focus on scheduled maintenance.
Maintenance Zone
This is a critical period where major service items become due, including spark plugs and potentially transmission fluid. Engine accessory components like the PCV valve or water pump may begin to show early signs of wear. Proactive maint…
Elevated Risk Zone
Beyond 90,000 miles, the likelihood of more significant and costly repairs increases. Suspension components may need replacement, and more complex electronic modules might fail. Keep a close eye on fluid levels and any warning lights.
High Risk Zone
At this mileage, the S4 demands a significant budget for continued reliable operation. Engine rebuilds, transmission component replacements, or major electrical system overhauls become distinct possibilities. Only maintain if you have a…
2025 Audi S4 Ownership Cost Outlook
What it typically costs to keep the 2025 Audi S4 on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.
Annual Maintenance
$800-1,200
Moderate Repairs
$1,000-3,000 annually (for one or two typical issues)
How Long Does the 2025 Audi S4 Last?
Purchase a 2025 S4 with confidence at low mileage, but ensure a comprehensive maintenance plan is in place from day one. Avoid examples over 90,000 miles unless you have a detailed service history and a significant budget set aside for potential repairs.
What 2025 Audi S4 Owners Actually Say
What Owners Love
- Exhilarating performance with a refined and usable powerband.
- Sophisticated, high-quality interior with excellent ergonomics.
- Confident handling and all-weather capability thanks to Quattro AWD.
- Comfortable for daily driving yet capable of spirited performance.
Common Frustrations
- Expensive parts and labor costs for even minor repairs.
- MMI system can be occasionally buggy or slow to respond.
- Fuel economy is respectable but demands premium fuel, impacting running costs.
- Firm ride can be tiring on poor roads, especially with larger wheels.
Who Should Buy the 2025 Audi S4?
Best For
- Enthusiasts who value driving dynamics and luxury equally
- Drivers needing all-weather performance with a sporty edge
- Individuals with a healthy discretionary income for premium vehicle maintenance
Not Ideal For
- Budget-conscious buyers seeking minimal ownership costs
- Drivers who neglect regular maintenance schedules
How the 2025 Audi S4 Compares to Rivals
The S4 generally sits in the middle of the premium performance sedan pack for reliability. It’s typically more robust than AMG or Quadrifoglio rivals but can't match the bulletproof nature of its Japanese competitors from Lexus or Acura. It strikes a good balance of performanc…
More Reliable Than
- Mercedes-AMG C43 (often higher complexity, more electrical gremlins)
- BMW M340i (some N58 engine issues, though improving)
- Alfa Romeo Giulia Quadrifoglio (significantly more electrical and minor reliability issues)
Comparable To
- Volvo S60 Polestar Engineered
Safety Recalls on the 2025 Audi S4
No active NHTSA safety recalls on file for the 2025 Audi S4. Always verify with your VIN atnhtsa.gov.
What breaks on the 2025 Audi S4?
Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.
OwnerKeep Passport · $499 · one-time
Just bought a 2025 Audi S4? Keep it that way.
Snap a receipt — AI logs it. Build an OwnerScore. Sell with a buyer-ready Passport dossier.
Audi S4 — Year-by-Year Comparison
Compare KeepScores across nearby years of the Audi S4. Click any year for its full report.
Competing 2025s Worth a Look
Similar class, similar year range — ranked by KeepScore.
Relevant Products for Your 2025 Audi S4
Parts and accessories matched to your 2025 Audi S4
As an Amazon Associate I earn from qualifying purchases.
Frequently Asked Questions
Just bought a 2025 Audi S4? Keep it that way.
OwnerKeep Passport turns your Audi S4's care history into a luxury digital vault — AI-logged receipts, an OwnerScore that pays at resale, and a buyer-ready dossier in one tap.
- AI receipt OCR — snap and log
- Fuel & mileage tracker
- Tri-Score OwnerScore
- One-tap resale dossier PDF
Recommended Reading for the Audi S4
Most Reliable Cars to Buy Used (Top 10 Ranked)
Get our expert-ranked list of the 10 most reliable used cars you can buy today, saving money and avoiding future headaches with smart choices.
Jeep Wrangler vs Toyota 4Runner: Which Lasts Longer?
Get the definitive answer: Which truly lasts longer, the Jeep Wrangler or Toyota 4Runner? Our comparison reveals their long-term durability.
Toyota Tacoma vs Chevy Colorado: Reliability Compared
Explore a head-to-head reliability comparison of the Toyota Tacoma vs. Chevy Colorado. Discover which truck truly stands out for long-term dependability.