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: 3,718 miles
• Fuel: Petrol
• Body: MPV, 5 doors, 5 seats
• Engine: 1.3 litres
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: White
• CO2: 142 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz B Class AMG Line Executive is advertised with 3,718 miles, approximately 32,300 below the typical mileage for its age. Priced at £18,495, it is advertised £361 below the AskCar estimate of £18,856. The AskCar estimate draws on 756 Mercedes-Benz B Class adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this car for sale 8 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sandown Group Mercedes-Benz of Dorchester, based in Dorchester. 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: £361 (1%) under the AskCar estimate of £18,856.

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 8 days.

Price history

AskCar first saw this advert on 31 October 2026 at £18,495. 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 8 November 2026: valid until 4 March 2027.

It has had 4 MOTs. The latest, on 24 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 3,624 miles, which matches the advertised 3,718 miles.

Advertised mileage is about 32,300 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 £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, white. Mileage: 8,585 miles. Price: £16,950, £1,545 less than this car. Dealer: Evans Halshaw Ford Coatbridge in Coatbridge. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-66709a487572
• 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, grey. Mileage: 16,516 miles. Price: £19,000, £505 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, silver. Mileage: 23,607 miles. Price: £16,999, £1,496 less 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

• The nearest: 2021 Mercedes-Benz B Class AMG Line Executive, 1.3 petrol MPV, black, 73 miles from this car. Mileage: 41,395 miles. Price: £13,999, £4,496 less than this car. Dealer: Snows Car Centre Plymouth in Plymouth. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-c3170d80e00a