AI Damage2020 Mercedes-Benz GLB 200 reliability: common problems
Owners of the 2020 Mercedes-Benz GLB 200 filed 1 complaints with NHTSA, most often about structure and air bags. The maker issued 101 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 1
- Technical service bulletins (TSB)
- 101
What fails most often
- 1 Structure 100% of all complaints
- 2 Air bags 100% of all complaints
- 3 Electronic stability control 100% of all complaints
- Structure: 1 complaints (100% of all); manufacturer bulletins for this component: 10.
- Air bags: 1 complaints (100% of all); manufacturer bulletins for this component: 1.
- Electronic stability control: 1 complaints (100% of all).
Symptoms owners describe
How many of the 1 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Structure | 1 | 0 | 10 |
| Air bags | 1 | 0 | 1 |
| Electronic stability control | 1 | 0 | 0 |
| Electrical system | 0 | 0 | 40 |
| Equipment | 0 | 0 | 28 |
| Steering | 0 | 0 | 9 |
| Exterior lighting | 0 | 0 | 7 |
| Powertrain | 0 | 0 | 7 |
| Engine and cooling | 0 | 0 | 6 |
| Visibility | 0 | 0 | 5 |
| Engine | 0 | 0 | 4 |
| Seats | 0 | 0 | 3 |
| Service brakes | 0 | 0 | 3 |
| Suspension | 0 | 0 | 3 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
2nd the trunk where the tyre was kept was handed over broken.3.first week the car had air bag warning on 4.the sun roof was trembling and shaking making noises in the first week 5.the trunk automatic foot opener never worked since first week .in the first week the warning for servicing also came up,so practically we…
Comparison
By complaint count this model year ranks 21,984 of 32,257 model years in the NHTSA data (among the 32% least complained about).
What to check before buying
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Air bags. Check the SRS light, stored codes and airbag/curtain status after any impact.
- Electronic stability control. ABS/ESC sensors, steering angle, codes after suspension repair.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Complaint Clanking noise from the area of the speakers in the doors
Cause Under analysis. Remedy To narrow down the cause, first of all remove the door trim. • If the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and…
- Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE
Although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while braking. Cause Although the cause of the vibration…
- Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end)
The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the…
- Complaint Headlamp, front fog lamp leaky or fogged
Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. If a pressure compensation diaphragm is fitted in…
- Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the…
Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in…
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the…
In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA is extending the warranty coverage for the Diagnostic Module for…
- In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the…
In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA, LLC (“MBUSA”) is extending the warranty coverage on the…
- Complaint The check engine light illuminates or the 48 V message is displayed in the instrument cluster…
Complaint The check engine light illuminates or the 48 V message is displayed in the instrument cluster Cause Fault code "P0A7F00" stored in the 48 V battery G1/3 and/or is current. Remedy Perform guided test for fault…
- Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can…
Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a…
- Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon,…
Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the…
- Complaint The message "Device detected at diagnostics connection See Owner’s Manual" appears sporadically…
Complaint The message "Device detected at diagnostics connection See Owner’s Manual" appears sporadically in the multifunction display of the instrument cluster while driving (see picture in attachment). Cause On…
- Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject…
Issue Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the communication software does not correspond with the latest series production configuration. The…
NHTSA lists 101 bulletins for this year; the 12 newest are shown here.
Questions and answers
What are the most common problems with the 2020 Mercedes-Benz GLB 200?
Owner complaints to NHTSA most often mention: structure, air bags, electronic stability control. Total complaints: 1. The most frequent symptoms in complaint texts: airbag warning light (100%), vibration (100%), windows, sunroof (100%).
How many service bulletins (TSB) were issued for the 2020 Mercedes-Benz GLB 200?
NHTSA lists 101 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2020 Mercedes-Benz GLB 200 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2020 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.