2021 Mercedes-Benz B Class 1.3 AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: B Class
• Trim: AMG Line Premium
• Version: 1.3 AMG Line Premium DCT FWD Euro 6 5dr
• Year: 2021
• Mileage: 39,915 miles
• Fuel: Petrol
• Body: MPV, 5 doors, 5 seats
• Engine: 1.3 litres
• Gearbox: Automatic (DCT)
• Drive: Front-wheel drive
• Colour: Silver
• CO2: 141 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 39,915 miles, this 2021 Mercedes-Benz B Class AMG Line Premium has covered about 3,900 more miles than other 2021 Mercedes-Benz B Class cars. The AskCar estimate for this car is £15,877. It is priced at £15,698, which is £179 below that estimate. The AskCar estimate uses UK dealer asking prices, including 763 Mercedes-Benz B Class adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 158 days ago, the asking price has dropped by £1,600. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Arnold Clark Solihull Motorstore in Birmingham. 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: £179 (1%) under the AskCar estimate of £15,877.

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 158 days.

Price history

AskCar first saw this advert on 2 June 2026 at £17,298. Its asking price is now £15,698, £1,600 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 2 June 2026: £17,298
• 13 August 2026: £16,798
• 18 August 2026: £16,498
• 1 September 2026: £15,998
• 27 October 2026: £15,698

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 11 May 2027.

It has had 4 MOTs. The latest, on 12 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 39,909 miles, which matches the advertised 39,915 miles.

Advertised mileage is about 3,900 miles higher than the median mileage of a 2021 Mercedes-Benz B Class on AskCar.

Similar cars

3 other 2021 Mercedes-Benz B Class AMG Line Premium 1.3 petrol automatic MPVs are for sale at UK dealers, from £16,699 to £17,999, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz B Class AMG Line Premium, 1.3 petrol MPV, blue. Mileage: 30,000 miles. Price: £16,750, £1,052 more than this car. Dealer: Alistair Buchan in East Wemyss. AskCar page: https://askcar.co.uk/car/mercedes-benz-b-class-2021-10ae5b258ad2
• 2021 Mercedes-Benz B Class AMG Line Premium, 1.3 petrol MPV, red. Mileage: 24,466 miles. Price: £16,699, £1,001 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-b8494194383e
• 2021 Mercedes-Benz B Class AMG Line Premium, 1.3 petrol MPV, blue. Mileage: 22,226 miles. Price: £17,999, £2,301 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-ceb5102f6a03