2020 Mercedes-Benz GLB 2.0 GLB220d AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line Premium
• Version: 2.0 GLB220d AMG Line Premium DCT 4WD Euro 6 (s/s) 5dr 8G (5 Seat) (187 bhp)
• Year: 2020
• Mileage: 43,716 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic (DCT)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 161 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 43,716 miles, this 2020 Mercedes-Benz GLB AMG Line Premium has covered about 7,600 fewer miles than other 2020 Mercedes-Benz GLB cars. Priced at £23,650, it is advertised £1,046 above the AskCar estimate of £22,604. The AskCar estimate uses UK dealer asking prices, including 841 Mercedes-Benz GLB adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records 63 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by The Car Group UK in Romford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,046 (4%) over the AskCar estimate of £22,604.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 841 priced Mercedes-Benz GLB adverts across different ages and specifications, as of 7 November 2026.

A 2020 Mercedes-Benz GLB with the 2.0 diesel engine is typically advertised at £21,000: the median of the 44 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2020 Mercedes-Benz GLB has been on sale for at least 63 days.

Price history

AskCar first saw this advert on 5 September 2026 at £23,650. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 12 March 2027.

It has had 4 MOTs. The latest, on 13 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 39,505 miles, which matches the advertised 43,716 miles.

Advertised mileage is about 7,600 miles lower than the median mileage of a 2020 Mercedes-Benz GLB on AskCar.

Similar cars

29 other 2020 Mercedes-Benz GLB AMG Line Premium 2.0 diesel automatic SUVs are for sale at UK dealers, from £16,000 to £24,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, white. Mileage: 43,467 miles. Price: £22,695, £955 less than this car. Dealer: Motor Trust Haslingden in Haslingden. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-16b2c166d2db
• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 43,000 miles. Price: £23,995, £345 more than this car. Dealer: Steven Eagell Toyota Birmingham in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-6424789a8c0a
• 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, white. Mileage: 41,915 miles. Price: £22,650, £1,000 less than this car. Dealer: Group 1 Automotive Mercedes-Benz Of Cambridge in Cambridge. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-37501c2b7d75

• The nearest: 2020 Mercedes-Benz GLB AMG Line Premium, 2.0 diesel SUV, black, 13 miles from this car. Price: £20,995, £2,655 less than this car. Dealer: Auto Bazaa in Enfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2020-520c617036bf