2021 Mercedes-Benz GLB 1.3 GLB200 AMG Line

Overview

• Make: Mercedes-Benz
• Model: GLB
• Trim: AMG Line
• Version: 1.3 AMG Line Auto FWD Euro 6 5dr (160 bhp)
• Year: 2021
• Mileage: 29,244 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 7 seats
• Engine: 1.3 litres, 160 bhp
• Gearbox: Automatic
• Drive: Front-wheel drive
• Colour: White
• CO2: 163 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLB AMG Line has covered 29,244 miles, around 18,200 fewer miles than is typical for its age. Priced at £21,217, it is advertised £646 below the AskCar estimate of £21,863. The AskCar estimate uses 841 UK dealer adverts for the Mercedes-Benz GLB, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 24 days ago, and its asking price has since fallen by £482. Its advertised mileage matches the government's MOT record. It is for sale at Vindis Group Three10 Automotive in Huntingdon. 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: £646 (2%) under the AskCar estimate of £21,863.

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 2021 Mercedes-Benz GLB with the 1.3 petrol engine is typically advertised at £21,000: the median of the 52 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 Mercedes-Benz GLB has been on sale for at least 24 days.

Price history

AskCar first saw this advert on 14 October 2026 at £21,699. Its asking price is now £21,217, £482 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 14 October 2026: £21,699
• 15 October 2026: £21,671
• 16 October 2026: £21,862
• 17 October 2026: £21,833
• 21 October 2026: £21,531
• 22 October 2026: £21,522
• 23 October 2026: £21,513
• 24 October 2026: £21,461
• 27 October 2026: £21,611
• 29 October 2026: £21,394
• 30 October 2026: £21,178
• 31 October 2026: £21,088
• 1 November 2026: £20,551
• 4 November 2026: £21,258
• 5 November 2026: £21,242
• 7 November 2026: £21,217

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 3 September 2027.

It has had 5 MOTs. The latest, on 4 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 28,707 miles, which matches the advertised 29,244 miles.

Advertised mileage is about 18,200 miles lower than the median mileage of a 2021 Mercedes-Benz GLB on AskCar.

Similar cars

25 other 2021 Mercedes-Benz GLB AMG Line 1.3 petrol automatic SUVs are for sale at UK dealers, from £15,795 to £22,595, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, silver. Mileage: 29,302 miles. Price: £20,990, £227 less than this car. Dealer: Motor 4 U in Flimwell. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-a0e884189239
• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, grey. Mileage: 29,550 miles. Price: £20,990, £227 less than this car. Dealer: Motor Gurus in Sheffield. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-76fdcaf62d3b
• 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, grey. Mileage: 30,623 miles. Price: £22,000, £783 more than this car. Dealer: ESP Cars in Long Eaton. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-4b800fa52a07

• The nearest: 2021 Mercedes-Benz GLB AMG Line, 1.3 petrol SUV, white, 34 miles from this car. Mileage: 59,293 miles. Price: £18,186, £3,031 less than this car. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/mercedes-benz-glb-2021-8c2277abc035