Mercedes-Benz GLB 2023–2026 car dimensions: 4634 mm long, 1834 mm wide and 1692 mm high. Unladen weight is 1,640 kg. Braked towing is 2,000 kg.
The cabin features dual 10.25-inch screens with MBUX, wireless Apple CarPlay and Android Auto as standard. Automatic climate control is fitted, with dual-zone on higher trims. Cruise control comes standard. Front and rear parking sensors plus a reversing camera are included. Active Brake Assist provides automatic emergency braking. Blind spot warning and lane keep assist are standard across the range.
Boot space measures 570 litres with rear seats up. Folding the seats expands it to 1805 litres. An optional third row reduces space when in use but folds flat into the floor.
Braked towing capacity reaches up to 2000 kg depending on engine and drivetrain, with unbraked limited to 750 kg. Payload is around 500 kg.
An optional off-road package adds features suited to light work or rough paths, including specialised modes.
The cabin feels quiet and well insulated with high-quality soft-touch materials. Power front seats offer solid support and multiple adjustments. The second row slides and reclines for extra space or cargo. An optional panoramic roof floods the interior with light.
Premium unleaded fuel required
ASSYST PLUS service display indicates intervals typically every 10,000 miles or 1 year
Euro NCAP 5-star rating from 2019 test
NHTSA overall 5 stars on AWD models, 4 stars on FWD
Standard Active Brake Assist with pedestrian detection, Blind Spot Assist, seven airbags
The GLB runs on premium unleaded fuel. Economy figures vary by market and drivetrain but stay competitive in the compact luxury SUV class.
ASSYST PLUS tracks remaining time or distance to the next service. Service A and Service B alternate, with the first usually due at one year or around 10,000-15,000 miles. Arduous conditions like short trips can shorten the interval.
Crash tests give the GLB a five-star Euro NCAP score with strong adult and child protection. NHTSA rates AWD versions five stars overall. Standard kit covers active brake assist, blind-spot monitoring, stability control and multiple airbags. Higher packages add adaptive cruise and lane-keeping assist.
Follow the ASSYST PLUS prompts at a specialist workshop to keep the car reliable. Chain-driven engines avoid belt changes. Standard warranty covers the vehicle for several years.
Length 4634 mm, Width 1834 mm, Height 1692 mm, Wheelbase 2829 mm (GLB 2023–2026)
Sources: manufacturer data, Mercedes-Benz owner's manuals April 2025 X247, carexpert.co.nz and driving.ca and auto-data style pages.