Used Mercedes-Benz GLB-Class for sale nationwide

CarGurus expert rating: 4 out of 5
CarGurus user rating: 3.8 out of 5
Percentage of good/great deals available on CarGurus: 35.9%
Overall CarGurus rating: 4.1 out of 5
Available Listings: Around 300
Average Price: Around £27,000

Mercedes-Benz GLB-Class (2019-present) Pros and Cons

Pros	Cons
Impressive practicality and space	Panoramic sunroof reduces headroom
Seven seats when most rivals have five	Not as capable off road as a Land Rover Discovery Sport
Wow-factor of MBUX infotainment system	The AMG model is a bit OTT

Quick Summary

The Mercedes-Benz GLB-Class, introduced in 2019, fills a niche between the GLA and GLC, offering a more traditional, upright SUV design focused on function. Based on A-Class underpinnings, it provides impressive space in a compact footprint. A key differentiator is its standard seven-seat configuration, where the third row can be stowed, a feature rare among similarly sized rivals. While the boot is generous in five-seat mode, it becomes minimal with all seven seats deployed, yet offers crucial flexibility for families.

On the road, the GLB offers a competent rather than thrilling driving experience, with a commendable ride and adequate engine performance. While not an off-road specialist, 4Matic all-wheel drive is available for added stability. Engine options include the economical 200d diesel (up to 49.6mpg) and a 200 petrol (39.2mpg), all paired with automatic gearboxes. Running costs are competitive for a premium badge, with strong retained values. Mercedes' MBUX infotainment system provides a modern and intuitive cabin experience. An AMG GLB 35 variant offers 302bhp for those seeking more performance, though with higher running costs.

Best for: Families needing seven seats, buyers prioritising practicality and space in a compact SUV, those who appreciate Mercedes' MBUX infotainment and technology, and people looking for a premium badge with competitive running costs (non-AMG).

Not ideal for: Serious off-road adventurers, buyers seeking a thrilling, sports-car-like driving experience (unless opting for AMG), or those sensitive to potential reduced headroom from a panoramic sunroof.


Comparison vs Key Rivals



The Verdict

You should buy the GLB if: You're a family needing seven seats, you prioritise practicality and space in a compact SUV, you appreciate Mercedes' MBUX infotainment and technology, or you're looking for a premium badge with competitive running costs (non-AMG).

Consider alternatives if: You are a serious off-road adventurer, you seek a thrilling, sports-car-like driving experience, or you are sensitive to potential reduced headroom from a panoramic sunroof.

Competitive Position: The Mercedes-Benz GLB-Class is a compelling choice in the compact SUV segment, standing out with its exceptional practicality and standard seven-seat configuration, which is a rarity among its rivals. While its upright design prioritises function over sleek aesthetics, it offers a rugged appeal. Coupled with Mercedes' advanced MBUX infotainment system and strong safety features, it's highly appealing for family buyers. Although not designed for serious off-roading or outright driving thrills, its competent performance and competitive running costs for a premium brand make it a sensible and versatile option.

Read our full Mercedes-Benz GLB-Class Review

The Overall CarGurus rating: that informs these recommendations is based on CarGurus' proprietary market data from January 2026, CarGurus expert reviews, and CarGurus user reviews.