Mercedes-Benz GLB-Class

Mercedes-Benz GLB at a glance

The GLB is the only compact Mercedes with an optional third row. The rest of the range is on our Mercedes-Benz brand page, and the battery-electric models of all brands are in our electric cars section.

Generations

The code of the new generation is given as listed by ADAC; Mercedes' own material in our sources calls it simply the "new GLB" or "GLB with EQ Technology".

GLB X247 (2019-2025)

Mercedes showed a near-production concept at the Shanghai motor show in April 2019 and unveiled the production GLB on 10 June 2019 in Park City, Utah. German sales began in December 2019. The GLB shares the MFA2 platform with the W177 A-Class and the GLA, but its wheelbase is 10 cm longer, at 2,829 mm, which is what makes space for an optional third row. At about 4.63 m it is only 22 mm shorter than the X253 GLC. The styling borrows the upright lines of the GLS and the old GLK.

The engines came from the A-Class. Front-wheel drive was standard, and 4MATIC all-wheel drive was available on the 2.0-litre versions. The GLB 180 used a seven-speed dual-clutch gearbox, the others an eight-speed dual-clutch. In the United States only the GLB 250 4MATIC was offered at launch.

The facelift reached Germany in September 2023. It brought new headlights and tail lights, updated MBUX infotainment, wireless Apple CarPlay and Android Auto and a 48-volt mild-hybrid system for the petrol engines. Mercedes also sold a battery-electric version of this body, the EQB, from 2021.

The new GLB (2026-)

The second-generation GLB was presented on 7 December 2025 and went into series production in Kecskemét in January 2026. It is the second and largest model on the MMA platform after the CLA. The wheelbase grew by 60 mm to 2,889 mm, and Autocar reports that the third-row seats suit passengers up to about 168 cm (5 ft 6 in). The electric versions came first; the mild-hybrid petrol models follow during 2026.

The electric GLB uses an 85 kWh usable battery in the 250+ and 350 4MATIC and a 58 kWh battery in the GLB 200. It charges at up to 320 kW DC on 800-volt chargers, and Autocar reports that a converter for 400-volt chargers is an option. The mild hybrid combines a 1.5-litre petrol engine with a small electric motor in the gearbox and a 1.3 kWh battery, enough for short, slow electric-only stretches.

Engines and performance

Outputs are the German ratings from ADAC; the AMG figures and acceleration times come from Wikipedia and press reports. UK outputs differ slightly, so check the market you buy in. Our power converter turns kW into PS and hp.

Dimensions, space and boot

Auto Express measured slightly different exterior figures (4,728 mm long, 1,689 mm tall), and it describes the boot with all seven seats in place as limited. The front boot under the bonnet is only available in the electric versions.

Range, running costs and prices

Mercedes quotes up to 630 km WLTP for the GLB 250+ and 615 km for the GLB 350 4MATIC; Autocar expects about 450 km for the GLB 200 with the smaller battery. According to Autocar, about 260 km of range can be added in roughly ten minutes at a fast charger. Work out your own costs with the cost of ownership calculator.

ADAC lists these German prices for the new GLB (from March 2026): EUR 50,397 for the GLB 180 Progressive, EUR 52,991 for the GLB 200, EUR 53,455 for the electric GLB 200, EUR 59,048 for the GLB 250+ and EUR 62,178 for the GLB 350 4MATIC; the AMG Line Plus and Night Edition versions reach EUR 72,822. In the UK prices ran from GBP 41,770 to GBP 61,480 in August 2026, about EUR 48,000 to EUR 71,000. For comparison, the X247 started at EUR 37,771 (GLB 180 d, December 2019) and the facelifted car at EUR 46,547 (GLB 180, September 2023).

Trims and equipment

German trims for the new GLB are Progressive, AMG Line, AMG Line Plus and Night Edition. Auto Express praises the comfortable, quiet ride and the amount of technology, but notes some harder plastics in the cabin, noticeable body roll and expensive top versions. The X247 had the widescreen cockpit with MBUX from the start, optional adaptive dampers and, after 2023, wireless Apple CarPlay and Android Auto.

Safety

Euro NCAP tested the X247 in 2019 and awarded five stars: 92% for adult occupants, 88% for child occupants, 78% for vulnerable road users and 74% for safety assist. The test car was a GLB 200 AMG Line weighing 1,555 kg, and the result covered every engine. The rating expired on 1 January 2026. The new GLB had not been tested by Euro NCAP by August 2026, according to Auto Express. Other results are collected on our safety page.

Reliability and known issues

The new GLB was too new for Auto Express's 2026 Driver Power survey, in which Mercedes ranked first of 30 manufacturers. The standard warranty is three years with unlimited mileage, and electric models are serviced every two years or 30,000 km (18,650 miles). Our sources contain no fault statistics or recalls for the X247, so we do not list any.

Rivals

Auto Express compares the GLB with the BMW X1, which is 4,500 mm long, and the Smart #5 (4,695 mm). Compare exact versions with our comparison tool.

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