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: 28,000 miles
• Fuel: Petrol
• Body: MPV, 5 doors, 5 seats
• Engine: 1.3 litres, 161 bhp
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Grey
• 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 28,000 miles on the clock. The AskCar estimate for this car is £16,459. It is priced at £15,995, which is £464 below that estimate. The AskCar estimate uses UK dealer asking prices, including 756 Mercedes-Benz B Class adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 151 days ago. Its asking price has since fallen by £2,000. The last MOT shows 28,678 miles, more than the advert. This is worth checking with the dealer. MOT records show an expiry date of 15 June 2027. The seller is Waterside Motors, based in Blackpool. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £464 (2%) under the AskCar estimate of £16,459.

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 756 priced Mercedes-Benz B Class adverts across different ages and specifications, as of 8 November 2026.

A 2021 Mercedes-Benz B Class with the 1.3 petrol engine is typically advertised at £16,700: the median of the 35 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 Mercedes-Benz B Class has been on sale for at least 151 days.

Price history

AskCar first saw this advert on 10 June 2026 at £17,995. Its asking price is now £15,995, £2,000 less. The latest price cut was seen on 15 October 2026.

Price changes recorded:

• 10 July 2026: £17,995
• 12 July 2026: £17,495
• 17 July 2026: £16,995
• 13 September 2026: £16,495
• 15 October 2026: £15,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 15 June 2027.

It has had 3 MOTs. The latest, on 16 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 28,678 miles. The advert says 28,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 8,100 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 8 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, silver. Mileage: 23,607 miles. Price: £16,999, £1,004 more than this car. Dealer: Available Car Supermarket - Castle Donington in Castle Donington. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-ae869eb82af5
• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, black. Mileage: 36,167 miles. Price: £16,698, £703 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, black. Mileage: 36,291 miles. Price: £14,891, £1,104 less 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, black, 30 miles from this car. Mileage: 46,447 miles. Price: £14,299, £1,696 less than this car. Dealer: Motorpoint Burnley in Burnley. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-9c81c21976e4