2021 Mercedes-Benz GLB

1.3 AMG Line Auto FWD Euro 6 5dr (160 bhp)

£20,699

Fair price: within 8% of the typical £21,550 for this model, age and mileage, drawing on 876 adverts of this make and model.

Overview

Make
Mercedes-Benz
Model
GLB
Trim
AMG LINE
Version
1.3 AMG Line Auto FWD Euro 6 5dr (160 bhp)
Mileage
33,543 miles
Year
2021
Fuel type
Petrol
Body type
SUV
Engine
1.3 L
Gearbox
Automatic
Power
160 bhp
Seats
7
CO2
163 g/km
Colour
Red
Doors
5
Driven wheels
Front Wheel Drive
Engine badge
GLB200
Emissions standard
Euro 6

About this car

At 33,543 miles, this 2021 Mercedes-Benz GLB AMG Line has covered about 9,600 fewer miles than other 2021 Mercedes-Benz GLB cars. The dealer is asking £20,699, which is £851 below our market estimate of £21,550. Our estimate draws on 876 Mercedes-Benz GLB adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 60 days ago. Its asking price has since fallen by £1,600. That history is worth bearing in mind when speaking to the dealer. Its recorded MOT is valid until 2 November 2026, and its advertised mileage is consistent with the latest MOT reading. The seller is cinch, based in Kidlington.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 27 August 2026, 60 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £1,600 from the first recorded £22,299. 7 price reductions recorded, the latest observed on 23 October 2026.

Recorded asking prices
Date observedAsking price
27 August 2026£22,299
28 August 2026£22,099
16 September 2026£22,099
17 September 2026£22,199
23 September 2026£22,299
25 September 2026£22,099
26 September 2026£21,999
2 October 2026£21,499
9 October 2026£21,099
15 October 2026£20,799
23 October 2026£20,699

Price and mileage comparison

Estimated market asking price: £21,550. The asking price is £851 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 876 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 9,600 miles lower than typical for a 2021 Mercedes-Benz GLB.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 2 November 2026. 28,470 miles at the last test.

27 other cars with the same year, trim, gearbox and fuel are for sale from £15,795 to £23,000.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£15,795101,000 miles
£15,99095,412 miles
£16,80087,258 miles
£18,19971,750 miles
£18,49565,560 miles

These cars have covered 19,431–101,000 miles, compared with 33,543 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 GLB cars for sale · 2021 Mercedes-Benz GLB price guide

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