2021 Mercedes-Benz B Class 1.3 AMG Line Executive

Overview

• Make: Mercedes-Benz
• Model: B Class
• Trim: AMG Line Executive
• Version: 1.3 AMG Line Executive DCT FWD Euro 6 (s/s) 5dr 7G
• Year: 2021
• Mileage: 46,447 miles
• Fuel: Petrol
• Body: MPV, 5 doors, 5 seats
• Engine: 1.3 litres
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 141 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 46,447 miles on the clock, this 2021 Mercedes-Benz B Class AMG Line Executive has done roughly 10,400 more miles than a typical 2021 Mercedes-Benz B Class. Its asking price of £14,649 is £290 below the AskCar estimate of £14,939. To work out the AskCar estimate, we analyse UK dealer adverts for 770 Mercedes-Benz B Class cars across different ages and specifications. Since we first spotted the advert 37 days ago, the asking price has dropped by £850. Its advertised mileage matches the government's MOT record. The seller is Motorpoint Burnley, based in Burnley. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £290 (1%) under the AskCar estimate of £14,939.

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 770 priced Mercedes-Benz B Class adverts across different ages and specifications, as of 6 November 2026.

A 2021 Mercedes-Benz B Class with the 1.3 petrol engine is typically advertised at £16,900: the median of the 37 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2021 Mercedes-Benz B Class has been on sale for at least 37 days.

Price history

AskCar first saw this advert on 30 September 2026 at £15,499. Its asking price is now £14,649, £850 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 30 September 2026: £15,499
• 6 October 2026: £14,999
• 14 October 2026: £14,749
• 24 October 2026: £14,699
• 31 October 2026: £14,649

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 27 September 2027.

It has had 4 MOTs. The latest, on 28 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 46,448 miles, which matches the advertised 46,447 miles.

Advertised mileage is about 10,400 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 6 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, black. Mileage: 41,395 miles. Price: £13,999, £650 less than this car. Dealer: Snows Car Centre Plymouth in Plymouth. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-c3170d80e00a
• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, blue. Mileage: 40,485 miles. Price: £15,998, £1,349 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: 36,291 miles. Price: £14,891, £242 more than this car. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-e466520fc539

• The nearest: 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, grey, 30 miles from this car. Mileage: 28,000 miles. Price: £15,995, £1,346 more than this car. Dealer: Waterside Motors in Blackpool. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-5aff468b3839