2021 Mercedes-Benz AMG GLB35 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
5 owner complaints analyzed
8 distinct recall campaigns
52,000 mi median reported failure mileage
Scope: 2021 model year. Data snapshot: . 3 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Engine is the most frequently named component, appearing in 1 of 5 complaints (20.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Steering behavior | 2 | 40.0% |
| Engine operation | 1 | 20.0% |
| Braking behavior | 1 | 20.0% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine | 1 |
| Power Train | 1 |
| Service Brakes, Hydraulic | 1 |
| Suspension | 1 |
| Visibility/Wiper | 1 |
| Wheels:Hubcap/Cover | 1 |
Engine: 1; Power Train: 1; Service Brakes, Hydraulic: 1; Suspension: 1; Visibility/Wiper: 1; Wheels:Hubcap/Cover: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 1 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 2 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 1; 25,000 to 49,999: 0; 50,000 to 74,999: 2; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
50,000 to 74,999 miles has the most reports with usable mileage (2). 2 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2021 | 1 |
| 2023 | 1 |
| 2025 | 3 |
2021: 1; 2023: 1; 2025: 3
Pattern summary
Engine leads the component reports. Steering behavior appears in 2 complaint narratives. Engine operation appears in 1 complaint narratives. Braking behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11660562 · 2025-05-12 (May 12, 2025)
On 4/13/25 while driving my car on the highway, along with my 2 young children, I began to hear what initally sounded like a "flapping" noise. I rolled the windows down and after a minute or 2 the sound got lounder. There was never a warning or any type of safety icon that appeared on the control panel, nor any driving performance issue before hand. Shortly after the initial noise I could tell the car was struggling to accelerate. I wasn't near an exit during this time and began to panic in fear the car would shut down and I had no safe place t…
Owner-reported narrative. Look up ODI 11660562 at NHTSA ↗
Owner report 11667631 · 2025-06-18 (June 18, 2025)
The contact owns a 2021 Mercedes-Benz AMG GLB35. The contact stated that while reversing down the driveway at approximately 4 MPH, the contact turned the steering wheel to the left and the vehicle started losing motive power. The contact stated that the RPMs were extremely high and the vehicle almost stalled. The contact stated no warning light was illuminated. The contact stated that the failure was intermittent and occurred at slower speeds between 3 and 6 MPH. The contact had taken the vehicle to a local dealer, where it was diagnosed and de…
Owner-reported narrative. 55,000 miles reported. Look up ODI 11667631 at NHTSA ↗
Owner report 11638919 · 2025-01-27 (January 27, 2025)
The contact owned a 2021 Mercedes-Benz GLB35. The contact stated while driving at 35 MPH, the brake pedal was depressed; however, the vehicle failed to stop as intended. There was no warning light illuminated. The contact stated that neither the dealer nor an independent mechanic was contacted. The vehicle was not diagnosed or repaired. The contact stated that the vehicle was serviced months before the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 52,000.
Owner-reported narrative. 52,000 miles reported. Look up ODI 11638919 at NHTSA ↗