Registered new in Europe in 2021
The largest markets were Germany (8,027), Italy (4,896), France (3,775).
- Average mass
- 1,668 kg
- Average CO₂
- 156 g/km (WLTP)
- Average power
- 120 kW
- Fuel type recorded
- Diesel 70% · Petrol 30%
European Environment Agency, CO₂ emissions from new passenger cars · averages weighted by registrations; CO₂ is the type-approval value; fuel type as recorded at registration, where many non-plug-in hybrids appear as petrol · re-use permitted with acknowledgement
Real-world fuel consumption
18,597 Mercedes-Benz GLB-Class cars first registered in Europe in 2021 report their fuel use through the on-board meter. Diesel versions use 6.5 l/100 km on the road against 5.7 in the WLTP test (+15%).
| Fuel | Cars | On the road | WLTP | Difference |
|---|---|---|---|---|
| Petrol | 5,334 | 8.7 | 7.5 | +15% |
| Diesel | 13,263 | 6.5 | 5.7 | +15% |
Litres per 100 km from the cars' own fuel meters (OBFCM), collected in 2024; the year is the year of first registration. All years together · European Environment Agency · CC BY 4.0
Engines
The most common engines in 2021 Mercedes-Benz GLB-Class cars on Dutch roads are the 1.3 petrol (120 kW, 161 hp), 1.3 petrol (100 kW, 134 hp) and 2.0 petrol (165 kW, 221 hp), out of 6 versions with at least 20 cars.
| Engine | Power | Cars |
|---|---|---|
| 1.3 petrol | 120 kW 161 hp | 608 |
| 1.3 petrol | 100 kW 134 hp | 207 |
| 2.0 petrol | 165 kW 221 hp | 73 |
| 2.0 diesel | 110 kW 148 hp | 56 |
| 2.0 petrol | 225 kW 302 hp | 37 |
| 2.0 diesel | 85 kW 114 hp | 28 |
RDW Open Data (CC0): registered passenger cars and their fuel data · engine size rounded to 0.1 litre, net maximum power · versions with at least 20 cars
Other years
New registrations in Europe by year (European Environment Agency) · a year gets its own page when at least three European sources cover it
In the Netherlands
1,027 first registered in 2021 are on Dutch roads; 37% arrived later as imports. Median list price when new: €59,888.
Most common APK defects
- Bandenspanning niet op juiste waarde244
- Band onvoldoende profiel110
- Dimlicht onjuist afgesteld94
- Band(en) aanwezig met een profieldiepte van 1,6 t/m 2,5 mm56
- Band beschadigd44
- Mechanische delen van het remsysteem vertonen slijtage36
- Ruitenwisserinstallatie geeft onvoldoende zicht22
- Bandenspanning op 1 as niet gelijk9
Colours
RDW Open Data: registered vehicles and APK defects (CC0) · defect descriptions in the RDW's Dutch wording
In the United Kingdom
3,824 cars built in 2021 were licensed for the road at the end of 2025, and 123 more were declared off the road (SORN).
Department for Transport and DVLA, vehicle licensing statistics (table VEH0124, year of manufacture) · Open Government Licence v3.0
MOT test results in Great Britain
In 2023, 215 of these cars first registered in 2021 took their annual MOT test. 96% passed first time; among all cars first registered in 2021 the figure was 91%.
DVSA anonymised MOT tests and results, 2023 (Department for Transport) · Open Government Licence v3.0 · first tests only; a fix made at the test station within the hour still counts as a fail
In Finland
263 of these cars first registered in 2021 were in use in Finland on 30 Jun 2026, with an average of 121,000 km on the odometer at their last inspection.
Traficom (Finnish Transport and Communications Agency), open data on vehicles in use · CC BY 4.0
Crash-test ratings
NHTSA 5-star results for 2 variants; 1 of 2 rated variants score five stars overall. Rollover risk is the estimated chance of rolling over in a single-vehicle crash.
| Variant | Overall | Rollover risk |
|---|---|---|
| 2021 Mercedes-Benz GLB-Class SUV 4WD | ★★★★★ | 15.9 % |
| 2021 Mercedes-Benz GLB-Class SUV FWD | ★★★★☆ | 17.9 % |
- Electronic stability control
- Standard
- Forward collision warning
- Standard
- Lane departure warning
- No
- Best overall rating
- 5 / 5
NHTSA New Car Assessment Program (5-Star Safety Ratings), api.nhtsa.gov · US federal work, public domain
Recalls in Canada
11 Transport Canada recalls for the 2021 Mercedes-Benz GLB-Class.
| 2026364 24 Jul 2026 | Structure Issue: On certain vehicles, moisture could enter the driver-side door lock microswitch and cause it to corrode. As a result, the microswitch may fail to autom… |
| 2023199 31 Mar 2023 | Label Issue: On certain vehicles, the vehicle type printed on the compliance label is incorrect. The vehicle type should be "MPV/VTUM" instead of "PC/VT". Canadian … |
| 2023200 31 Mar 2023 | Label Issue: On certain AMG models, the vehicle type printed on the compliance label is incorrect. The vehicle type should be "MPV/VTUM" instead of "PC/VT". Canadia… |
| 2022511 9 Sept 2022 | Brakes Issue: On a small number of vehicles, the electronic stability program (ESP) control unit may have been damaged during assembly. As a result, water could leak… |
| 2022263 20 May 2022 | Other Issue: On certain vehicles equipped with the emergency calling (eCall) system, the SIM card for the communications module could disable itself. If this happen… |
| 2022241 6 May 2022 | Lights And Instruments Issue: On a small number of vehicles, the level sensor linkage on the rear axle might not have been installed correctly. As a result, the headlamp leveling sy… |
| 2022177 12 Apr 2022 | Visual System Issue: On certain vehicles, a software problem could cause the rearview camera image not to appear on the central display. Canadian regulations require the re… |
| 2021682 8 Nov 2021 | Airbag Issue: On a small number of vehicles, the driver's side curtain airbag may not have been installed correctly. As a result, the curtain airbag may not properly… |
| 2021415 5 Jul 2021 | Lights And Instruments Issue: On certain vehicles, a label on the headlamp assembly may contain incorrect information for a service technician. As a result, the headlamps may not ge… |
| 2021291 14 May 2021 | Visual System Issue: On certain vehicles, a software problem could cause the rearview camera image not to appear on the central display. Canadian regulations require the re… |
| 2021064 12 Feb 2021 | Electrical Issue: On certain vehicles equipped with the emergency calling (eCall) system, the communications module may temporarily lose power during a crash. If this ha… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada