2021 Mercedes-Benz B Class 1.3 B200 AMG Line Executive

Overview

• Make: Mercedes-Benz
• Model: B Class
• Trim: AMG Line Executive
• Version: 1.3 B200 AMG Line Executive DCT FWD Euro 6 (s/s) 5dr 7G (161 bhp)
• Year: 2021
• Mileage: 36,291 miles
• Fuel: Petrol
• Body: MPV, 5 doors, 5 seats
• Engine: 1.3 litres, 161 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 140 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz B Class AMG Line Executive is advertised with 36,291 miles, approximately 4,900 above the typical mileage for its age. Priced at £14,896, it is advertised £873 below the AskCar estimate of £15,769. The AskCar estimate uses 766 UK dealer adverts for the Mercedes-Benz B Class, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 139 days ago, and its asking price has since fallen by £1,854. Its advertised mileage matches the government's MOT record. The seller is Quality Part X Dunstable, based in Dunstable. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £873 (5%) under the AskCar estimate of £15,769.

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 766 priced Mercedes-Benz B Class adverts across different ages and specifications, as of 5 November 2026.

A 2021 Mercedes-Benz B Class with the 1.3 petrol engine is typically advertised at £16,900: the median of the 36 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 Mercedes-Benz B Class has been on sale for at least 139 days.

Price history

AskCar first saw this advert on 19 June 2026 at £16,750. Its asking price is now £14,896, £1,854 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 20 June 2026: £16,750
• 26 June 2026: £16,700
• 29 June 2026: £16,691
• 3 July 2026: £16,676
• 6 July 2026: £16,400
• 8 July 2026: £16,391
• 10 July 2026: £16,381
• 15 July 2026: £16,376
• 17 July 2026: £16,371
• 20 July 2026: £16,366
• 22 July 2026: £16,361
• 24 July 2026: £16,356
• 28 July 2026: £16,351
• 30 July 2026: £16,331
• 3 August 2026: £16,326
• 5 August 2026: £16,300
• 7 August 2026: £16,280
• 10 August 2026: £16,279
• 13 August 2026: £16,276
• 17 August 2026: £16,271
• 19 August 2026: £16,161
• 23 August 2026: £16,151
• 25 August 2026: £16,100
• 28 August 2026: £16,096
• 30 August 2026: £16,091
• 2 September 2026: £16,086
• 4 September 2026: £16,081
• 9 September 2026: £16,076
• 15 September 2026: £16,000
• 17 September 2026: £15,996
• 19 September 2026: £15,900
• 23 September 2026: £15,680
• 28 September 2026: £15,671
• 30 September 2026: £15,666
• 2 October 2026: £15,600
• 3 October 2026: £15,580
• 5 October 2026: £15,571
• 9 October 2026: £15,486
• 13 October 2026: £15,300
• 15 October 2026: £15,200
• 19 October 2026: £15,151
• 23 October 2026: £14,946
• 26 October 2026: £14,941
• 30 October 2026: £14,900
• 4 November 2026: £14,896

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 9 March 2027.

It failed its MOT on 5 March 2026 (oil leaking excessively from engine; nearside front anti-roll bar ball joint excessively worn; offside front anti-roll bar ball joint excessively worn) and passed 5 days later, on 10 March 2026.

There were no advisories at the latest test.

Mileage at that test: 35,105 miles, which matches the advertised 36,291 miles.

Advertised mileage is about 4,900 miles higher than the median mileage of a 2021 Mercedes-Benz B Class on AskCar.

Similar cars

10 other 2021 Mercedes-Benz B Class AMG Line Executive 1.3 petrol automatic MPVs are for sale at UK dealers, from £12,990 to £19,000, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, black. Mileage: 36,167 miles. Price: £16,698, £1,802 more than this car. Dealer: Arnold Clark Glasgow Kia / OMODA / JAECOO in Glasgow. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-312e6c960889
• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, blue. Mileage: 40,485 miles. Price: £15,998, £1,102 more than this car. Dealer: Arnold Clark Wallsend Silverlink Citroen / Peugeot / Jeep / OMODA / JAECOO in Wallsend. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-206298849dbf
• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, black. Mileage: 41,395 miles. Price: £13,999, £897 less than this car. Dealer: Snows Car Centre Plymouth in Plymouth. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-c3170d80e00a

• The nearest: 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, grey, 3 miles from this car. Mileage: 79,667 miles. Price: £12,990, £1,906 less than this car. Dealer: Jan Autos in Luton. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-1df0262339ab