2023 Mercedes-Benz GLB-Class reliability
The 2023 Mercedes-Benz GLB-Class has 13 complaints with NHTSA after 4 years, or 3 per year. That is more complaints per year than most GLB-Class years here — over the median of the other years, which is 2. NHTSA has no recalls on file for this model year.
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The complaints owners file most often name Engine (4 of 13), then Powertrain (3) and Service brakes (3). The most filings arrived in 2025 (7 of 13).
The 2022 GLB-Class has 13 complaints, 3 per year, and the 2024 has 0 complaints, 0 per year. The 2023 has fewer complaints per year than the 2022. The 2023 has more complaints per year than the 2024.
The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2023 Mercedes-Benz GLB-Class. How we count. Data as of .
Recalls (0)
No recalls on file with NHTSA for this model year.
Complaints by component (13 total)
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Complaints filed per year
Excerpts from recent NHTSA complaint filings
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"NHTSA Recall 26V481 (Mercedes-Benz recall no. 2026070007). Interim owner notification letter dated September 18, 2026, titled "Replace Driver Door Lock." The micro-switch in the driver door lock may corrode and fail to…"
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"Safety Risk - Twice I was almost hit because my car didn't take off. O'REILLY Veri Scan Results - Free Emissions Status: Red Primary DTC: Mixture Formation (Cylinder 4) is irregular P219F: Fuel injectors measure and…"
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"My 2023 Mercedes-Benz GLB 250 is experiencing engine misfires and fault codes consistent with a known cylinder head defect that is the subject of a recall affecting 2022 and earlier models. A certified mechanic has…"
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"Reporting because I see reports on other searches of this happening on other Mercedes Benz various years and models, the front stationary roof panel has shattered, cracked. I was lucky, my vehicle is only cracked…"
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"On December 19, 2025, the vehicle showed lights that a sparkplug had misfired. The dealer notified me that in less than two full years of having the 2023 vehicle, it required a complete engine rebuild. This is the third…"
NHTSA crash ratings
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2023 Mercedes-Benz GLB-Class SUV AWD | 5 stars | 4 stars | 5 stars | 4 stars |
| 2023 Mercedes-Benz GLB-Class SUV FWD | 4 stars | 4 stars | 5 stars | 4 stars |
Stars are how this vehicle did in NHTSA crash tests. They are a safety result, separate from the complaint record. Not rated means that test was not run for this version.
Specs and fitment
Known issues for this generation
Recall 21V-860 covers certain 2021 GLB 250 and AMG GLB 35 vehicles: the driver-side window air bag may not have been mounted correctly to the lower A-pillar area. Dealers inspect the mounting and repair it as necessary. Recall 21V-232 covers certain 2020-2021 GLB250 vehicles: front fender wheel-arch covers may not have been installed correctly and can detach; dealers check and correct the installation. Recall 21V-231 covers certain 2020-2021 GLB250 and 2021 GLB35 AMG vehicles: tailgate side spoilers may not have been installed correctly and can detach; dealers inspect and replace the spoilers as necessary.
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Frequently asked questions
Is the 2023 Mercedes-Benz GLB-Class reliable?
The 2023 Mercedes-Benz GLB-Class has 13 complaints with NHTSA after 4 years, or 3 per year. That is more complaints per year than most GLB-Class years here — over the median of the other years, which is 2. NHTSA has no recalls on file for this model year.
What are common problems with a 2023 Mercedes-Benz GLB-Class?
The complaints owners file most often name Engine (4 of 13), then Powertrain (3) and Service brakes (3). The most filings arrived in 2025 (7 of 13).
Is the 2023 Mercedes-Benz GLB-Class more reliable than the years next to it?
The 2022 GLB-Class has 13 complaints, 3 per year, and the 2024 has 0 complaints, 0 per year. The 2023 has fewer complaints per year than the 2022. The 2023 has more complaints per year than the 2024.
Has the 2023 Mercedes-Benz GLB-Class been recalled?
NHTSA has no recalls on file for the 2023 Mercedes-Benz GLB-Class.
How many complaints have owners filed about the 2023 Mercedes-Benz GLB-Class?
Owners have filed 13 complaints about the 2023 Mercedes-Benz GLB-Class with NHTSA.
What oil does a Mercedes-Benz GLB 250 take?
0W-20, 0W-30, or 0W-40 at all temps; 5W-30 or 5W-40 above -25°C for the GLB250 2.0L turbo — confirm the engine sticker.
What does recall 21V-860 cover on the GLB?
Certain 2021 GLB 250 and AMG GLB 35 vehicles: the driver-side window air bag may not have been mounted correctly to the lower A-pillar area. Dealers inspect the mounting and repair it as necessary.
When did the US GLB start?
Model year 2020 (X247 generation on this site).