Is the Audi A5 more reliable than the Mercedes-Benz C-Class?

Based on our data, the Audi A5 is more reliable with an average score of 75/100 compared to 51/100. That's a significant difference worth considering.

Which has more recalls, the Audi A5 or the Mercedes-Benz C-Class?

The Mercedes-Benz C-Class has more recalls (767) compared to the Audi A5 (16). More recalls don't always mean worse reliability — some are minor — but it's worth reviewing what each recall covers.

Which has fewer owner complaints, the Audi A5 or the Mercedes-Benz C-Class?

Adjusted for sales volume, the Audi A5 has a lower complaint rate at 2.9 per 10,000 sold versus 18.3 for the Mercedes-Benz C-Class. This per-sales normalization gives a fairer comparison than raw totals.

Last updated: 2026-03-28

Audi A5 vs Mercedes-Benz C-Class: Reliability Compared

More Reliable

Audi A5

Good

Mercedes-Benz C-Class

Mixed

Choosing between the Audi A5 and the Mercedes-Benz C-Class? This page compares their reliability scores, NHTSA recall history, owner-reported complaints, and estimated annual repair costs so you can make a confident long-term ownership decision between these two midsize sedans.

Our reliability scores are based on NHTSA recall and complaint data, independent repair cost estimates, and sales-normalized complaint rates. The Audi A5 currently leads with an average score of 75/100 compared to 51/100. Scroll down for the full year-by-year breakdown, common problem areas, and repair cost comparison.

How Do the Audi A5 and Mercedes-Benz C-Class Generations Compare?

As of March 2026, the Mercedes-Benz C-Class is in its fifth generation (W206), which was introduced in 2022. Being relatively early in its generation cycle, the W206 may still experience first-year issues common with newer platforms, though improvements typically follow as the model matures. In contrast, the Audi A5 is in its third generation (RE10), launched in 2025. Like the C-Class, it is also early in its generation, suggesting potential teething problems. However, the second-generation A5 (RE9), which lasted from 2018 to 2024 and received a facelift in 2022, was a mature platform, likely offering a more refined experience due to its extended production run.

Verdict

The Audi A5 is more reliable than the Mercedes-Benz C-Class, scoring 75/100 vs 51/100.

The Audi A5 outperforms the Mercedes-Benz C-Class in reliability, boasting a significantly higher average reliability score of 75/100 compared to the C-Class's 51/100. The A5 also has a considerably lower recall count, with just 16 recalls over eight years, contrasting sharply with the C-Class's 767 recalls. Additionally, owner complaints per 10,000 units sold are much lower for the A5 at 2.9, compared to 18.3 for the C-Class. While independent repair cost estimates for the A5 average $739 annually, the C-Class lacks this data, but its higher complaint and recall rates suggest potentially higher maintenance concerns.

Key Differences

1Audi A5 has 751 fewer total recalls
2Audi A5 scores 24 points higher in reliability
3Audi A5 has 15.4 fewer complaints per 10k sold

Category Scoreboard

3Audi A5

—

0Mercedes-Benz C-Class

Reliability ScoreTotal RecallsComplaint Rate

Audi A5 vs Mercedes-Benz C-Class: Which Is More Reliable?

Audi A5 vs Mercedes-Benz C-Class at-a-glance reliability comparison
Metric	Audi A5	Mercedes-Benz C-Class
Reliability Score	75/100	51/100
Years Tracked	8	8
Total Recalls	16	767
Complaints per 10k Sold	2.9	18.3
Year Wins	6	0

What Are the Common Problems With the Audi A5 and Mercedes-Benz C-Class?

The Mercedes-Benz C-Class exhibits a higher volume and variety of complaints, with notable issues in the electrical system, engine, and power train, accumulating a significant number of crash-linked incidents, particularly in steering and service brakes. In contrast, the Audi A5 has a markedly lower total complaint count, with its primary concern also centered on the electrical system, but without the same severity or crash-linked consequences found in the C-Class. The C-Class's steering and power train problems are a particular concern, given their higher crash association, while the A5's issues are less diverse and severe. Overall, the C-Class faces more critical reliability challenges that impact safety compared to the A5.

Audi A5 vs Mercedes-Benz C-Class common problem areas comparison
Component	Audi A5	Mercedes-Benz C-Class
ELECTRICAL SYSTEM	1.5Low	2.7Low
UNKNOWN OR OTHER	0.5Very Low	1.8Low
ENGINE	0.1Very Low	1.9Low
POWER TRAIN	—None	1.2Low
STEERING	0.1Very Low	0.8Very Low
VEHICLE SPEED CONTROL	0.1Very Low	0.4Very Low
SERVICE BRAKES	—None	0.5Very Low
STRUCTURE	—None	0.5Very Low
FUEL SYSTEM	—None	0.4Very Low
AIR BAGS	—None	0.4Very Low
FORWARD COLLISION AVOIDANCE	—None	0.3Very Low
TIRES	0.1Very Low	0.1Very Low
WHEELS	—None	0.2Very Low
BACK OVER PREVENTION	0.1Very Low	—None
SUSPENSION	—None	0.1Very Low
FUEL/PROPULSION SYSTEM	—None	0.1Very Low
ENGINE AND ENGINE COOLING	—None	0.1Very Low
VISIBILITY	—None	0.1Very Low
SEATS	—None	—None

Complaints per 10,000 units sold, aggregated across all tracked model years from NHTSA owner reports.

Which Is Cheaper to Maintain: Audi A5 or Mercedes-Benz C-Class?

Based on industry estimates, the Audi A5 has an annual repair cost of $739, with an expected repair frequency of 0.6 visits per year. In contrast, specific cost data for the Mercedes-Benz C-Class is not available, making direct comparisons challenging. However, the Audi A5's predictable repair expenses and moderate frequency suggest a more transparent cost profile for budgeting purposes. For cost-conscious buyers, the Audi A5 appears to offer better value due to its measurable maintenance costs and manageable repair frequency. Without concrete data for the C-Class, the Audi A5's known maintenance expenses provide a clearer picture for those prioritizing cost predictability over uncertainty.

How Does Audi A5 vs Mercedes-Benz C-Class Reliability Compare by Year?

Audi A5 vs Mercedes-Benz C-Class year-by-year reliability scores
Year	Audi A5	Mercedes-Benz C-Class	Edge
2023	81/1000R / 0C	53/10083R / 209C	Audi A5
2022	74/1003R / 5C	47/10082R / 271C	Audi A5
2021	71/1005R / 7C	47/100149R / 314C	Audi A5
2020	70/1005R / 60C	43/100170R / 377C	Audi A5
2019	73/1003R / 12C	50/100161R / 477C	Audi A5
2018	77/1000R / 6C	51/100115R / 518C	Audi A5
2026(predicted)	77/100(predicted)	56/100(predicted)	Audi A5

Best years to cross-shop: The 2023 Audi A5 scored 81/100 and the 2023 Mercedes-Benz C-Class scored 53/100 — these represent the strongest model years in our tracking range.

Who Should Buy the Audi A5 vs the Mercedes-Benz C-Class?

If you prioritize reliability and low maintenance, the Audi A5 is your best bet. With a reliability score of 75/100, it outperforms the Mercedes-Benz C-Class, which has a score of just 51/100. The A5 also boasts significantly fewer recalls (16 compared to 767 for the C-Class) and a lower number of owner complaints at 2.9 per 10,000 sold. Additionally, independent repair cost estimates suggest an annual repair cost of $739 for the A5, making it a more predictable choice for your budget. On the other hand, if you have a strong preference for the brand prestige associated with Mercedes-Benz and are willing to potentially face higher maintenance challenges, the C-Class might still appeal to you. However, be aware of its higher rate of owner complaints and top issues related to the electrical system, engine, and powertrain. For most buyers focused on reliability and cost-effectiveness, the Audi A5 stands out as the more prudent choice.

Audi A5 vs Mercedes-Benz C-Class: Common Questions

Is the Audi A5 more reliable than the Mercedes-Benz C-Class?: Based on our data, the Audi A5 is more reliable with an average score of 75/100 compared to 51/100. That's a significant difference worth considering.
Which has more recalls, the Audi A5 or the Mercedes-Benz C-Class?: The Mercedes-Benz C-Class has more recalls (767) compared to the Audi A5 (16). More recalls don't always mean worse reliability — some are minor — but it's worth reviewing what each recall covers.
Which has fewer owner complaints, the Audi A5 or the Mercedes-Benz C-Class?: Adjusted for sales volume, the Audi A5 has a lower complaint rate at 2.9 per 10,000 sold versus 18.3 for the Mercedes-Benz C-Class. This per-sales normalization gives a fairer comparison than raw totals.

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How We Calculate Reliability Scores

Auto Reliability Index scores are calculated on a 0–100 scale using a weighted formula that combines multiple public data sources. Each factor is weighted based on its predictive value for real-world ownership experience.

Key Ranking Factors

Complaint Severity

NHTSA owner complaints weighted by component category (e.g., powertrain, safety systems, electronics, cosmetic) — safety-critical issues carry more weight than cosmetic ones. Adjusted for sales volume so high-volume models aren't unfairly penalized.

Repair Costs

Independent reliability ratings based on repair frequency, average repair costs, and severity of typical repairs for each model.

Recall Impact

Number of NHTSA recalls weighted by severity. “Stop driving” and fire-risk recalls are penalized more heavily than minor software or labeling recalls.

Issue Diversity

Measures how many major vehicle systems (engine, transmission, electrical, braking, etc.) have recorded complaints. A vehicle with issues spread across many systems may indicate systemic quality issues.

Scores are grouped into four tiers:

80–100: Excellent — Top-tier reliability, minimal issues
60–79: Good — Reliable with some minor concerns
40–59: Mixed — Notable issues, research before buying
0–39: Risky — Significant problems, proceed with caution

Data is sourced from NHTSA recall records, owner complaint filings, and independent repair databases. Scores are recalculated as new data becomes available. While the weighting model is proprietary, all underlying data sources are public and traceable.

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