What breaks most · 2020 to 2026 model years
Mercedes-Benz GLB 250 problems by year
Owners have filed 107 safety complaints with NHTSA about the Mercedes-Benz GLB 250 across model years 2020 to 2026. Three years stand out: 2020 for body and structure complaints, 2021 for engine complaints and 2022 for forward collision system complaints. The quietest years are 2024 and 2023.
- Years to check closely: 2020, 2021, 2022
- Fewest complaints: 2024, 2023
- Complaints on file
- 1072020 to 2026, all trims
- Worst year
- 202051 complaints
- Crashes reported
- 50 fires · 5 injuries · 0 deaths
- Typical failure mileage
- 13kMedian where owners gave mileage
- Recall campaigns
- 37Across the years shown
Complaints by model year
Raw filings with NHTSA, not adjusted for how many were sold.
| Model year | Complaints | Crashes | Recalls | Most-reported component |
|---|---|---|---|---|
| 51 | 2 | 20 | Body and structure (13) | |
| 29 | 0 | 11 | Unknown or other (10) | |
| 11 | 2 | 1 | Forward collision system (4) | |
| 10 | 0 | 1 | Engine (4) | |
| 4 | 0 | 1 | Electrical system (2) | |
| 1 | 1 | 2 | Electrical system (1) | |
| 1 | 0 | 1 | Wheels (1) |
What fails on the 2020 Mercedes-Benz GLB 250
| Component | Share of complaints | Filings | Crashes | Parts for this job |
|---|---|---|---|---|
| Body and structureDoors, latches and body hardware | 25% |
13 | 0 | Shop all body and structure parts, not filtered to this vehicle |
| Unknown or other | 22% |
11 | 0 | — |
| Electrical systemAlternators, starters and ignition | 18% |
9 | 0 | Shop all electrical system parts, not filtered to this vehicle |
| EngineEngine gaskets and seals | 12% |
6 | 0 | Shop engine parts for the 2020 Mercedes-Benz GLB 250 |
| SuspensionStruts, springs and control arms | 10% |
5 | 1 | Shop suspension parts for the 2020 Mercedes-Benz GLB 250 |
| Air bags | 8% |
4 | 1 | Check recalls for air bags on NHTSA.gov |
| Speed control and throttleThrottle and pedal sensors | 6% |
3 | 0 | Shop all speed control and throttle parts, not filtered to this vehicle |
| SteeringPower steering pumps, racks and hoses | 6% |
3 | 1 | Shop all steering parts, not filtered to this vehicle |
One complaint can name more than one component, so shares add to more than 100%. "Unknown or other" is NHTSA's uncategorized bucket and is shown but never ranked.
In owners' words
Complaint narratives as filed with NHTSA, trimmed for length.
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2020 mercedes benz glb. Consumer writes in regards to rear spoiler safety recall. *ld the consumer requested to be reimbursed for the safety recall repair that was performed prior to receiving the notice. *js
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The horn randomly starts honking while driving posing a serious safety risk. it makes driving the vehicle seem like it is stolen.
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Driver assist adaptive speed control, braking, lane control all boxes checked has a 50/50 work fail that is it may work may not work. This is a safety concern that needs to be checked by MBUSA
How to read this page
Every figure comes from the National Highway Traffic Safety Administration's public complaint database, which holds every safety-related defect complaint filed by owners since 1995. We refresh it monthly and count each complaint once per component it names. Data through September 6, 2026.
NHTSA only accepts safety-related complaints. Rattles, paint, infotainment bugs and other annoyances are under-reported here, so this page is a map of what fails in ways owners consider dangerous, not a full reliability score.
Counts are raw. Use the year-over-year shape and the component mix, not the absolute numbers. Where a component maps to parts we stock, the row links to that category filtered to the year you are viewing. Air bag and seat belt complaints link to the recall checker instead, because those repairs are almost always covered.
Common questions
Which Mercedes-Benz GLB 250 years have the most problems?
By NHTSA complaint volume, 2020, 2021, 2022 carry the most filings on the Mercedes-Benz GLB 250. The 2020 alone has 51 complaints, led by body and structure.
What is the most common Mercedes-Benz GLB 250 problem?
On the 2020 model year, the most-reported component is body and structure with 13 complaints. The table above lists the top components for every year.
At what mileage do Mercedes-Benz GLB 250 problems start?
The median mileage at failure across all Mercedes-Benz GLB 250 complaints that include mileage is about 13,000 miles. Older model years skew higher; the per-year figure is in the "at a glance" card.
Are these complaints verified?
No. NHTSA publishes complaints as submitted and does not investigate individual filings. Patterns across hundreds of complaints are meaningful; a single one is not.