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: 32,783 miles
• Fuel: Petrol
• Body: MPV, 5 doors, 5 seats
• Engine: 1.3 litres
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Black
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 32,783 miles, this 2021 Mercedes-Benz B Class AMG Line Executive has covered about 3,300 fewer miles than other 2021 Mercedes-Benz B Class cars. Its asking price of £17,995 is £1,854 above the AskCar estimate of £16,141. To work out the AskCar estimate, we analyse UK dealer adverts for 758 Mercedes-Benz B Class cars across different ages and specifications. We have tracked this advert today. Its advertised mileage matches the government's MOT record. The seller is Agnew Group Mercedes-Benz Of Belfast, based in Belfast. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 11 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £1,854 (11%) over the AskCar estimate of £16,141.

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 758 priced Mercedes-Benz B Class adverts across different ages and specifications, as of 11 November 2026.

A 2021 Mercedes-Benz B Class with the 1.3 petrol engine is typically advertised at £16,700: the median of the 31 for sale on AskCar, as of 11 November 2026.

Time on sale

AskCar first saw this 2021 Mercedes-Benz B Class advertised today. About 4 in 10 of 2021 Mercedes-Benz B Class cars are gone from sale within a month of being advertised: 26 of the 65 first advertised between 13 July 2026 and 8 October 2026.

Price history

AskCar first saw this advert on 11 November 2026 at £17,995. 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 11 November 2026: valid until 21 January 2027.

It failed its MOT on 6 January 2025 and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 17,260 miles, which matches the advertised 32,783 miles.

Advertised mileage is about 3,300 miles lower 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 £18,495, as of 11 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, £1,297 less 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, black. Mileage: 36,291 miles. Price: £14,890, £3,105 less than this car. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-e466520fc539
• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, grey. Mileage: 28,000 miles. Price: £15,995, £2,000 less than this car. Dealer: Waterside Motors in Blackpool. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-5aff468b3839