2020 Mercedes-Benz B Class

1.3 AMG Line Auto FWD Euro 6 5dr (134 bhp)

£12,688

Fair price: within 8% of the typical £13,429 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 (134 bhp)
Mileage
40,000 miles
Year
2020
Fuel type
Petrol
Body type
MPV
Engine
1.3 L
Gearbox
Automatic
Power
134 bhp
Seats
5
CO2
140 g/km
Colour
White
Doors
5
Driven wheels
Front Wheel Drive
Engine badge
AMG Line
Emissions standard
Euro 6

About this car

This 2020 Mercedes-Benz B Class AMG Line is advertised with 40,000 miles on the clock. At £12,688, it is advertised £741 below our estimated market asking price of £13,429. 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 13 days ago, the asking price has dropped by £700. Its recorded MOT is valid until 14 November 2026, and its advertised mileage is consistent with the latest MOT reading. The seller is The Car Traders London, based in Romford.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 12 October 2026, 13 days ago. Advert duration calculated on 25 October 2026. Net asking-price reduction: £700 from the first recorded £13,388. 4 price reductions recorded, the latest observed on 23 October 2026.

Recorded asking prices
Date observedAsking price
12 October 2026£13,388
13 October 2026£13,488
14 October 2026£13,388
15 October 2026£13,188
21 October 2026£12,988
23 October 2026£12,688

Price and mileage comparison

Estimated market asking price: £13,429. The asking price is £741 below 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 100 miles lower than typical for a 2020 Mercedes-Benz B Class.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 14 November 2026. 37,689 miles at the last test.

1 other cars with the same year, trim, gearbox and fuel are for sale from £11,995 to £11,995.

Other matching cars
Asking priceMileage
£11,99562,217 miles

These cars have covered 62,217 miles, compared with 40,000 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 · 2020 Mercedes-Benz B Class price guide

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