Last updated: 2026-07-26

Cadillac XT6 vs Mercedes-Benz GLB: Reliability Compared

More ReliableCadillac XT6 reliability comparison

Cadillac XT6

73
GoodReliability score: 73 out of 100, rated Good
VS
Mercedes-Benz GLB reliability comparison

Mercedes-Benz GLB

69
GoodReliability score: 69 out of 100, rated Good

Choosing between the Cadillac XT6 and the Mercedes-Benz GLB? 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 suvs.

Our reliability scores are based on NHTSA recall and complaint data, independent repair cost estimates, and sales-normalized complaint rates. The Cadillac XT6 currently leads with an average score of 73/100 compared to 69/100. Scroll down for the full year-by-year breakdown, common problem areas, and repair cost comparison.

How Do the Cadillac XT6 and Mercedes-Benz GLB Generations Compare?

As of 2026, the Mercedes-Benz GLB is in its first generation, which began in 2019. It received a facelift in 2023, providing updated features and design elements. This positions the GLB in the mature phase of its generation cycle, suggesting that many initial issues would likely have been addressed, potentially enhancing reliability. The Cadillac XT6, also in its first generation, launched in 2020 and continued until 2025. Being later in its cycle before a new generation is expected in 2028, the XT6's platform would typically have benefited from refinements over time. Generally, vehicles in mature stages of their generational cycle, like these, are often more reliable due to resolved early production issues.

Verdict

The Cadillac XT6 is more reliable than the Mercedes-Benz GLB, scoring 73/100 vs 69/100.

In terms of reliability, the Cadillac XT6 edges out the Mercedes-Benz GLB with a higher average reliability score of 73/100 compared to 69/100 for the GLB. The XT6 has a significantly lower owner complaint rate of 0.9 per 10,000 sold versus the GLB's 9.9, and it also has fewer recalls, with 14 over seven years compared to the GLB's 30 over five years. Additionally, independent repair cost estimates favor the XT6, with an annual cost of $783, lower than the GLB's $908. While both vehicles have their set of common issues, the XT6 demonstrates a clear advantage in reliability metrics.

Key Differences

  1. 1Cadillac XT6 costs $125 less per year to repair
  2. 2Cadillac XT6 has 16 fewer total recalls
  3. 3Cadillac XT6 has 9.0 fewer complaints per 10k sold

Category Scoreboard

4Cadillac XT6
—
0Mercedes-Benz GLB
Reliability ScoreTotal RecallsComplaint RateAnnual Repair Cost

Cadillac XT6 vs Mercedes-Benz GLB: Which Is More Reliable?

Cadillac XT6 vs Mercedes-Benz GLB at-a-glance reliability comparison
MetricCadillac XT6Mercedes-Benz GLB
Reliability Score73/10069/100
Years Tracked75
Total Recalls1430
Complaints per 10k Sold0.99.9
Annual Repair Cost$783/yr$908/yr
Year Wins32

What Are the Common Problems With the Cadillac XT6 and Mercedes-Benz GLB?

The Mercedes-Benz GLB and Cadillac XT6 both exhibit issues with their electrical systems, each recording 16 complaints. However, the GLB presents a broader range of problems, including significant concerns in categories like 'UNKNOWN OR OTHER' and 'STRUCTURE', which surpass those in the XT6. Notably, the GLB has more complaints regarding its engine, with 11, compared to just 2 for the XT6, potentially indicating more severe mechanical reliability issues. While both vehicles have crash-linked complaints, the GLB's air bags and steering issues are notable, whereas the XT6's back over prevention system is the primary source of its crash-related concerns.

Cadillac XT6 vs Mercedes-Benz GLB common problem areas comparison
ComponentCadillac XT6Mercedes-Benz GLB
UNKNOWN OR OTHER0.1Very Low1.7Low
ELECTRICAL SYSTEM0.1Very Low1.4Low
STRUCTURE—None1.1Low
ENGINE—None0.9Very Low
POWER TRAIN0.2Very Low0.5Very Low
SUSPENSION—None0.6Very Low
AIR BAGS—None0.6Very Low
STEERING—None0.4Very Low
FUEL SYSTEM—None0.3Very Low
FORWARD COLLISION AVOIDANCE—None0.3Very Low
VEHICLE SPEED CONTROL—None0.2Very Low
BACK OVER PREVENTION0.1Very Low—None
SERVICE BRAKES—None—None
FUEL/PROPULSION SYSTEM—None—None

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

Which Is Cheaper to Maintain: Cadillac XT6 or Mercedes-Benz GLB?

The Mercedes-Benz GLB and Cadillac XT6 have differing maintenance and repair costs, which can impact long-term ownership expenses. According to independent repair cost data, the Mercedes-Benz GLB incurs an annual repair cost of $908, whereas the Cadillac XT6 is slightly more affordable at $783 per year. Over five years, this translates to an additional $625 for the GLB. While specific repair frequency and major repair risk data aren't provided, the lower annual cost of the XT6 suggests it may pose fewer unexpected expenses. For cost-conscious buyers, the Cadillac XT6 presents a better value, with its lower annual repair expenses potentially indicating fewer maintenance issues. Without detailed repair frequency and major repair risk data, the XT6's reduced costs make it a more economical choice over time.

How Does Cadillac XT6 vs Mercedes-Benz GLB Reliability Compare by Year?

Cadillac XT6 vs Mercedes-Benz GLB year-by-year reliability scores
YearCadillac XT6Mercedes-Benz GLBEdge
202473/1002R / 14C72/1001R / 4CCadillac XT6
202373/1002R / 13C74/1000R / 12CMercedes-Benz GLB
202272/1003R / 14C75/1000R / 13CMercedes-Benz GLB
202173/1002R / 18C65/10010R / 30CCadillac XT6
202072/1004R / 36C59/10019R / 56CCadillac XT6

Best years to cross-shop: The 2024 Cadillac XT6 scored 73/100 and the 2022 Mercedes-Benz GLB scored 75/100 — these represent the strongest model years in our tracking range.

Who Should Buy the Cadillac XT6 vs the Mercedes-Benz GLB?

If you prioritize a vehicle with fewer recalls and lower owner complaints, the Cadillac XT6 may be the better choice for you. With a reliability score of 73/100, the XT6 has had only 14 recalls and a notably low 0.9 complaints per 10,000 sold. This suggests fewer potential issues and a more positive ownership experience. Additionally, its estimated annual repair cost is $783, which is lower compared to the Mercedes-Benz GLB, further reducing your long-term expenses. On the other hand, if you are drawn to the brand prestige and design of a Mercedes-Benz, the GLB could still be worth considering despite its lower reliability score of 69/100. However, be prepared for a higher number of recalls (30) and owner complaints (9.9 per 10,000 sold). The estimated annual repair cost is $908, indicating higher maintenance expenses. Choose the GLB if these factors are secondary to your brand preference.

Cadillac XT6 vs Mercedes-Benz GLB: Common Questions

Is the Cadillac XT6 more reliable than the Mercedes-Benz GLB?
Based on our data, the Cadillac XT6 is more reliable with an average score of 73/100 compared to 69/100. The difference is modest, so both are reasonable choices.
Which has more recalls, the Cadillac XT6 or the Mercedes-Benz GLB?
The Mercedes-Benz GLB has more recalls (30) compared to the Cadillac XT6 (14). 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 Cadillac XT6 or the Mercedes-Benz GLB?
Adjusted for sales volume, the Cadillac XT6 has a lower complaint rate at 0.9 per 10,000 vehicles sold versus 9.9 for the Mercedes-Benz GLB. Normalizing by sales gives a fairer comparison than raw totals.
Which is cheaper to maintain, the Cadillac XT6 or the Mercedes-Benz GLB?
Based on independent repair cost estimates, the Cadillac XT6 is cheaper to maintain at $783/year versus $908/year for the Mercedes-Benz GLB.

Related Reliability Comparisons

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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

1

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.

2

Repair Costs

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

3

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.

4

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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