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: 23,607 miles
• Fuel: Petrol
• Body: MPV, 5 doors, 5 seats
• Engine: 1.3 litres
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Silver
• CO2: 140 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 23,607 miles on the clock, this 2021 Mercedes-Benz B Class AMG Line Executive has done roughly 12,400 fewer miles than a typical 2021 Mercedes-Benz B Class. The AskCar estimate for this car is £16,822. It is priced at £16,999, which is £177 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 763 Mercedes-Benz B Class cars across different ages and specifications. Since we first spotted the advert 150 days ago, the asking price has dropped by £1,000. Its advertised mileage matches the government's MOT record. It is for sale at Available Car Supermarket - Castle Donington in Castle Donnington. 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: £177 (1%) over the AskCar estimate of £16,822.

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 763 priced Mercedes-Benz B Class adverts across different ages and specifications, as of 7 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 7 November 2026.

Time on sale

This 2021 Mercedes-Benz B Class has been on sale for at least 150 days.

Price history

AskCar first saw this advert on 10 June 2026 at £17,999. Its asking price is now £16,999, £1,000 less. The latest price cut was seen on 25 September 2026.

Price changes recorded:

• 6 July 2026: £17,999
• 8 August 2026: £17,699
• 28 August 2026: £17,199
• 25 September 2026: £16,999

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 30 March 2027.

It has had 3 MOTs. The latest, on 19 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 22,897 miles, which matches the advertised 23,607 miles.

Advertised mileage is about 12,400 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 £19,000, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, grey. Mileage: 28,000 miles. Price: £15,995, £1,004 less than this car. Dealer: Waterside Motors in Blackpool. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-5aff468b3839
• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, grey. Mileage: 16,516 miles. Price: £19,000, £2,001 more than this car. Dealer: Sytner Group Mercedes-Benz of Colindale in Colindale. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-41cc818c42ef
• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, black. Mileage: 36,167 miles. Price: £16,698, £301 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

• The nearest: 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, black, 76 miles from this car. Mileage: 36,291 miles. Price: £14,891, £2,108 less than this car. Dealer: Quality Part X Dunstable in Dunstable. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-e466520fc539