2021 Mercedes-Benz B Class

1.3 AMG Line Auto FWD Euro 6 5dr (161 bhp)

£16,995

Fair price: within 8% of the typical £16,340 for this model, age and mileage, drawing on 738 adverts of this make and model.

Overview

Make
Mercedes-Benz
Model
B Class
Trim
AMG LINE
Version
1.3 AMG Line Auto FWD Euro 6 5dr (161 bhp)
Mileage
39,570 miles
Year
2021
Fuel type
Petrol
Body type
MPV
Engine
1.3 L
Gearbox
Automatic
Power
161 bhp
Seats
5
CO2
140 g/km
Colour
Black
Doors
5
Driven wheels
Front Wheel Drive
Engine badge
AMG Line
Emissions standard
Euro 6

About this car

At 39,570 miles, this 2021 Mercedes-Benz B Class AMG Line has covered about 6,100 more miles than other 2021 Mercedes-Benz B Class cars. The dealer is asking £16,995, which is £655 above our market estimate of £16,340. We use UK dealer asking prices, including 738 Mercedes-Benz B Class listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 30 days ago, the asking price has dropped by £500. The recorded MOT expired on 22 October 2026, so ask the dealer whether it has been renewed. Its advertised mileage is consistent with the latest recorded MOT reading. It is for sale at Specialist Vehicles in Plymouth.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 25 September 2026, 30 days ago. Advert duration calculated on 25 October 2026. Net asking-price reduction: £500 from the first recorded £17,495. 1 price reduction recorded, the latest observed on 6 October 2026.

Recorded asking prices
Date observedAsking price
25 September 2026£17,495
6 October 2026£16,995
23 October 2026£16,995

Price and mileage comparison

Estimated market asking price: £16,340. The asking price is £655 above this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 738 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 6,100 miles higher than typical for a 2021 Mercedes-Benz B Class.

The advertised mileage is consistent with the last MOT reading.

The recorded MOT has expired; ask the dealer for an up-to-date MOT.

MOT

MOT valid until 22 October 2026. 33,448 miles at the last test.

1 other cars with the same year, trim, gearbox and fuel are for sale from £19,589 to £19,589.

Other matching cars
Asking priceMileage
£19,58920,380 miles

These cars have covered 20,380 miles, compared with 39,570 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all Mercedes-Benz B Class cars for sale · 2021 Mercedes-Benz B Class price guide

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