Last updated: 2026-07-26
2023 Mercedes-Benz GLB Reliability Report
The 2023 Mercedes-Benz GLB scores 74/100 ("Good"). With 0 recalls and 12 owner complaints, reliability is acceptable but not class-leading.
Recalls
0
Complaints
12
Complaint Rate
7.2per 10,000 sold
Est. Repair Cost
$908
Annual Fuel Cost
$2,750–$3,000
Detailed Score Breakdown
Component-weighted complaints normalized by sales volume
Independent repair cost ratings
Recall count weighted by severity
Breadth of reported problem categories
The Verdict
Acceptable reliability — worth considering with a pre-purchase inspection.
Top Issues to Watch
- POWER TRAIN (3)
- ENGINE (3)
- SERVICE BRAKES (1)
Generation & Refresh (US)
2023 is year 4 of the First generation (X247; 2019).
- Redesigned for the 2020 model year.
- Well-established in its generation — most early issues should be resolved.
- A refresh arrives in 2024.
- 1st generation GLB (US).
What this means for buyers
Well into the generation cycle — most design and manufacturing issues should be resolved by now.
2020: First generation (X247; 2019) Launch
Generation start — new platform.
2023: This Model Year
2023 is year 4 of the First generation (X247; 2019).
2024: Mid-Cycle Refresh
Updated features and styling tweaks.
Should You Buy the 2023 Mercedes-Benz GLB?
At 74/100, the 2023 Mercedes-Benz GLB lands in "Good" territory — acceptable, but not class-leading. 2023 is year 4 of the First generation (X247; 2019).
Owners log 12 complaints on this model year — enough to suggest attention is needed, but no single failure mode dominates yet.
Get a pre-purchase inspection on any used example, with extra attention to engine (3). An extended warranty is worth pricing out.
Compared to the 2024 Mercedes-Benz GLB, which scored 2 points lower. See also the 2022 Mercedes-Benz GLB for an earlier comparison.
Pros
- +Acceptable reliability score
- +No recalls issued
- +Below-average complaint rate for SUV
Cons
- −POWER TRAIN: Owners of the 2023 Mercedes-Benz GLB report issues primarily related to... (3 complaints)
- −ENGINE: Cylinder head problems and misfires (3 complaints)
Compare 2023 Mercedes-Benz GLB With
2023 Cadillac XT4
Reliability: 75/100
2023 Buick Envision
Reliability: 76/100
2023 Cadillac XT6
Reliability: 73/100
2023 Infiniti QX60
Reliability: 72/100
2023 Buick Encore GX
Reliability: 79/100
Common Problem Categories
Other
HIGH RISK- POWER TRAIN (3)
- ENGINE (3)
Recall Overview
0
recalls on record
No recalls are on record for the 2023 Mercedes-Benz GLB — uncommon, and a strong signal of manufacturing quality.
NHTSA.gov →Complaint Breakdown
7.2
per 10,000 soldSegment avg: 11.3
Safety Incidents
0
Crashes
0
Fires
0
Injuries
0
Deaths
NHTSA 4/5 Stars
Data sourced from NHTSA complaint filings and manufacturer recall notices. Complaint narratives are owner-reported.
Buying a used 2023 Mercedes-Benz GLB? Check its history first
Every 2023 Mercedes-Benz GLB has a different past. A VIN check reveals hidden accidents, title problems, odometer rollbacks, and open recalls that reliability scores can't show you.
- Accidents
- Open Recalls
- Title History
- Odometer Rollback
2023 Mercedes-Benz GLB NHTSA Safety Ratings
Overall Safety Rating
Crash Test Results by Configuration (expand)
Gas Powertrain
Rollover risk: 17.9%
Safety Technologies
Mercedes-Benz GLBRepair Costs & Maintenance
Maintenance Rating
3Maintenance rating: 3 out of 5Based on NHTSA complaint patterns, recall severity, and publicly available cost benchmarks.
Est. Annual Maintenance
$908
Category-level averages derived from publicly available industry reports (AAA, CarMD). Model-level estimates produced by Auto Reliability Index.
MPG & Annual Running Costs
Gas
25–27 MPG
Running cost: $3,650–$3,900/yr
Fuel + repair
22–24 city / 30–32 hwy MPG
Running cost includes EPA fuel-cost estimate and independent repair-cost data (repair cost estimated at model level). Excludes routine maintenance, depreciation, and insurance. Data as of 2023 EPA label cycle.
Gas trims
| Trim | Drive | Trans. | City | Hwy | Comb | Fuel Cost |
|---|---|---|---|---|---|---|
| GLB250 2.0L 4-cyl | Front-Wheel Drive | Automatic (AM8) | 24 | 32 | 27 | $2,750 |
| GLB250 4matic 2.0L 4-cyl | All-Wheel Drive | Automatic (AM8) | 22 | 30 | 25 | $3,000 |
Used Buying Checklist
Key things to inspect or verify before purchasing a 2023 Mercedes-Benz GLB.
Test transmission for shuddering and unexpected neutral shifts
Inspect engine for misfires and check engine light
Check for any visible cracks in the panoramic sunroof or roof panel
Verify brake functionality, especially at low speeds
Ensure windshield washer system is operational
Check for any outstanding recalls related to engine or powertrain
2023 Mercedes-Benz GLB Common Problems by Component
12 owner complaints grouped by vehicle system.
POWER TRAIN
3 complaintsOwners of the 2023 Mercedes-Benz GLB report issues primarily related to transmission and power loss. Complaints frequently mention the vehicle losing motive power, with the transmission warning light illuminating in some instances. Symptoms include abnormal shuddering while driving and engine misfires associated with fault codes similar to a known cylinder head defect from earlier models, though this specific model year is not covered by the recall. These issues are reported at mileages ranging from approximately 3,200 to 18,000 miles. Safety implications are noted, as the loss of power and malfunctioning brakes could pose hazards while driving.
ENGINE
3 complaintsOwners report recurring engine issues with the 2023 Mercedes-Benz GLB, primarily involving cylinder head problems and misfires. Complaints frequently mention irregular mixture formation and fuel injector issues, with one owner noting a diagnostic code P219F related to Cylinder 4. Symptoms include the vehicle failing to accelerate, which poses a safety risk as noted by an owner who was nearly involved in collisions. Another owner reports extensive engine repairs, including a complete rebuild within two years of ownership. These issues often emerge around or after 55,000 miles, with some repairs not covered by Mercedes-Benz despite being recognized by dealerships as known problems.
UNKNOWN OR OTHER
2 complaintsOwners of the 2023 Mercedes-Benz GLB report two significant issues under the unknown or other category. One complaint describes the transmission unexpectedly shifting to neutral while driving on the highway, with incidents occurring twice in December 2024, which could imply potential safety risks due to loss of propulsion. Another issue involves the front stationary roof panel cracking, which exposes windshield components to weather elements, such as rain. This complaint also references similar reports across various Mercedes-Benz models and years, and mentions the high cost of repair at over $2000. These issues suggest potential safety implications and financial considerations for prospective buyers.
SERVICE BRAKES (1 complaints)
SERVICE BRAKES
1 complaintThe front brakes making noise when slow stop , Merced dealer service repair 3 time and replace rotor and brakes, but the problem still making noise. they said nothing he can do. want me to report NHTSA. thanks
VISIBILITY/WIPER (1 complaints)
VISIBILITY/WIPER
1 complaintI was driving on Highway on May 19th and the Panoramic Sunroof suddenly shattered
Carry Handle (1 complaints)
Carry Handle
1 complaintGraco Turn2Me car seat is loosening over time when installed with the vehicle seatbelt and the SnugLock Lock-Off. The vehicle seat belt was also switched to a locked mode after proper installation and did not make a difference over time. The car seat continues to loosen over time to the point where it is moving more than an inch side to side at the belt path. This can cause injury to a child during a crash. Car seat has been installed with the assistance of certified Child Passenger Safety Technicians and Instructors on multiple occasions.
VISIBILITY (1 complaints)
VISIBILITY
1 complaintThe windshield washer stopped working It doesn’t clean because no water comes out to do the job
When Do 2023 Mercedes-Benz GLB Problems Start?
Based on owner complaint patterns, here's when common issues tend to appear.
Best & Worst Mercedes-Benz GLB Years
Comprehensive reliability analysis based on NHTSA data, owner complaints, and historical performance.
Best Mercedes-Benz GLB Years to Buy
Based on reliability index scoreThe best Mercedes-Benz GLB year is 2022 with a reliability score of 75/100, rated good. Other strong picks include 2023 (74/100) and 2024 (72/100).
2022
2023
(Current Model)
2024
Mercedes-Benz GLB Years to Avoid
The worst Mercedes-Benz GLB year is 2020 with a score of 59/100, primarily due to structure (13) issues.
Mercedes-Benz GLB Reliability Score Trend
Mercedes-Benz GLB reliability has improved in recent years, with newer models scoring an average of 74/100 compared to 62/100 for older years.
Scores 0–100. Higher is better. Current year highlighted.
| Year | Score | Rating |
|---|---|---|
| 2020 | 59/100 | Mixed |
| 2021 | 65/100 | Good |
| 2022 | 75/100 | Good |
| 2023 | 74/100 | Good |
| 2024 | 72/100 | Good |
Mercedes-Benz GLB Reliability Compared to Other Years
Frequently Asked Questions
Is the 2023 Mercedes-Benz GLB reliable?
What are the most common problems with the 2023 Mercedes-Benz GLB?
How many recalls does the 2023 Mercedes-Benz GLB have?
Is the 2023 Mercedes-Benz GLB expensive to maintain?
Don’t buy a 2023 Mercedes-Benz GLB without checking its VIN first — hidden accidents, title issues, and open recalls could cost you thousands.
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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.
Get notified when new recalls or reliability data is added for the Mercedes-Benz GLB.
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