-3%
1 /
4
Mercedes GLS350 AMG line 258 HP | Good price
GLS 2019 AMG Line 4Matic 9G-Tr
£31,240£32,499
- 2019
- 56,500 miles
- Diesel
- Automatic
Good price
- below market
- £2,060
- price change
- -3%
- days listed
- 35
RM20 3WJ Thurrock, Essex
Compare prices on 93 used Mercedes GLS-Class cars
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Price checked by AutoUncle
Super price
Good price
Fair price
A bit pricey
Expensive
Mercedes GLS350 AMG line 258 HP | Good price
GLS 4Matic AMG Line 5dr 9G-Tro
£31,300£31,500
- 2018
- 51,411 miles
- Diesel
- Automatic
Good price
- below market
- £1,600
- price change
- 0%
- days listed
- 18
CM1 3BH Essex, Essex
-4%
1 /
4
Mercedes GLS450 Business 367 HP | Good price
GLS 4Matic Business Class 5dr
£87,500£91,377
- 2026
- 2,573 miles
- Diesel
- Automatic
Good price
- below market
- £3,800
- price change
- -4%
- days listed
- 34
RG12 9FR Berkshire, Berkshire
1 /
4
Mercedes GLS450 Business 367 HP | Good price
GLS 4Matic Business Class 5dr
£83,490
- 2026
- 5,413 miles
- Diesel
- Automatic
Good price
- below market
- £3,210
- price change
- 0%
- days listed
- 5
CM2 5EF Springfield, Essex
Featured deals
-3%
1 /
4
Mercedes GLS400 Edition 330 HP | Good price
GLS 2022 Night Edition 4Matic
£52,449£54,399
- 2022
- 35,212 miles
- Diesel
- Automatic
Good price
- below market
- £2,451
- price change
- -3%
- days listed
- 15
EH15 1BT Edinburgh, Edinburgh
1 /
4
Mercedes GLS400 AMG line 330 HP | Good price
GLS 2020 AMG Line 4Matic 9G-Tr
£39,990
- 2020
- 77,165 miles
- Diesel
- Automatic
Good price
- below market
- £2,010
- price change
- 0%
- days listed
- 6
CM2 5EF Springfield, Essex
1 /
4
Mercedes GLS350 AMG line 258 HP | Good price
GLS 2019 AMG Line 4Matic 9G-Tr
£29,695
- 2019
- 68,434 miles
- Diesel
- Automatic
Good price
- below market
- £1,505
- price change
- 0%
- days listed
- 7
CB10 2RY Little Sampford, Essex
New
1 /
1
Mercedes GLS400 AMG Line Premium | Good price
GLS 4Matic AMG Line Premium 5dr
£49,990
- 2021
- 43,995 miles
- Diesel
- Automatic
Good price
- below market
- £3,210
- price change
- 0%
- days listed
- 1
Dealer
London, London
New
Mercedes GLS400 Night | Good price
GLS 4Matic Night Ed 5dr 9G-Tro
£50,032
- 2023
- 52,442 miles
- Diesel
- Automatic
Good price
- below market
- £2,768
- price change
- 0%
- days listed
- 1
Dealer
London, London
-8%
1 /
4
Mercedes GLS400 Edition 325 HP | Good price
Night Edition SUV 5dr Diesel
£54,950£59,950
- Oct 2022
- 17,897 miles
- Diesel
- Automatic
Good price
- below market
- £2,650
- price change
- -8%
- days listed
- 54
Dealer
Hertford, Hertfordshire
Featured deals
-3%
1 /
1
Mercedes GLS350 AMG line 258 HP | Super price
GLS-Class SUV 4Matic AMG Line 5d
£28,990£29,990
- 2018
- 57,794 miles
- Diesel
- Automatic
Super price
- below market
- £3,810
- price change
- -3%
- days listed
- 53
Dealer
S6 2FJ South Yorkshire, South Yorkshire
1 /
1
Mercedes GLS350 AMG line 258 HP | Good price
GLS 3.0 V6 AMG Line SUV 5dr Diesel
£27,950
- 2018
- 68,800 miles
- Diesel
- Automatic
Good price
- below market
- £1,850
- price change
- 0%
- days listed
- 5
Dealer
London, London
-3%
1 /
1
Mercedes GLS400 Night | Good price
GLS 4Matic Night Ed Exec 5dr
£52,449£54,399
- 2022
- 35,212 miles
- Diesel
- Automatic
Good price
- below market
- £3,151
- price change
- -3%
- days listed
- 15
Dealer
London, London
-13%
1 /
4
Mercedes GLS350 AMG line 255 HP | Good price
GLS-Class SUV 4Matic AMG Line 5d
£29,995£34,495
- 2018
- 55,000 miles
- Diesel
- Automatic
Good price
- below market
- £2,105
- price change
- -13%
- days listed
- 110
Exchange and Mart
SN3 4PN Swindon, Wiltshire
Mercedes GLS400 AMG Line Premium 330 HP | Super price
GLS 4Matic AMG Line Premium 5dr
£39,990
- 2020
- 77,165 miles
- Diesel
- Automatic
Super price
- below market
- £3,610
- price change
- 0%
- days listed
- 7
Dealer
CM2 5EF Springfield, Essex
-17%
1 /
4
Mercedes GLS450 AMG Line Premium Plus 367 HP | Good price
4Matic AMG Line Premium + 5dr
£69,900£84,480
- 2025
- 3,318 miles
- Diesel
- Automatic
Good price
- below market
- £2,300
- price change
- -17%
- days listed
- 113
Dealer
BL1 2HY Greater Manchester, Manchester
-25%
1 /
1
Mercedes GLS350 AMG line 254 HP | Good price
GLS-Class SUV 4Matic AMG Line 5d
£28,999£38,999
- 2019
- 66,000 miles
- Diesel
- Automatic
Good price
- below market
- £2,401
- price change
- -25%
- days listed
- 82
Dealer
DH6 1RD Littletown, Durham
1 /
1
Mercedes GLS350 AMG line | Good price
GLS 4Matic AMG Line 5dr 9G-Tro
£25,995
- 2017
- 74,000 miles
- Diesel
- Automatic
Good price
- below market
- £1,805
- price change
- 0%
- days listed
- 34
Dealer
London, London
1 /
1
Mercedes GLS350 AMG line 258 HP | Good price
V6 AMG Line
£28,500
- 2017
- 56,700 miles
- Diesel
- Automatic
Good price
- below market
- £2,100
- price change
- 0%
- days listed
- 65
Dealer
BH12 4QR Bournemouth, Christchurch And Poole, Dorset
1 /
4
Mercedes GLS400 AMG line 330 HP | Fair price
GLS 2020 AMG Line 4Matic 9G-Tr
£46,739£46,989
- 2020
- 60,000 miles
- Diesel
- Automatic
Fair price
- price change
- 0%
- days listed
- 91
UB7 0LW Harmondsworth, London
Featured deals
-5%
1 /
4
Mercedes GLS450 AMG line 367 HP | Fair price
GLS 2025 AMG Line 4Matic 9G-Tr
£70,995£74,991
- 2025
- 9,399 miles
- Diesel
- Automatic
Fair price
- below market
- £5
- price change
- -5%
- days listed
- 35
LS12 6BZ West Yorkshire, West Yorkshire
-2%
1 /
4
Mercedes GLS400 AMG line 330 HP | Fair price
GLS 2020 AMG Line 4Matic 9G-Tr
£46,995£47,995
- 2020
- 61,138 miles
- Diesel
- Automatic
Fair price
- price change
- -2%
- days listed
- 12
TA1 2EJ Somerset, Somerset
-6%
1 /
4
Mercedes GLS450 AMG line 367 HP | Fair price
GLS 2025 AMG Line 4Matic 9G-Tr
£69,700£74,800
- 2025
- 10,269 miles
- Diesel
- Automatic
Fair price
- below market
- £100
- price change
- -6%
- days listed
- 42
TA1 2EJ Somerset, Somerset
-14%
1 /
4
Mercedes GLS450 Business 367 HP | Fair price
GLS 2024 Business Class 4Matic
£73,500£86,000
- 2024
- 24,105 miles
- Diesel
- Automatic
Fair price
- below market
- £1,300
- price change
- -14%
- days listed
- 215
CM1 3BH Essex, Essex
-1%
1 /
4
Mercedes GLS450 Business 367 HP | Fair price
GLS 2026 Business Class 4Matic
£84,650£85,700
- 2026
- 7,751 miles
- Diesel
- Automatic
Fair price
- below market
- £1,250
- price change
- -1%
- days listed
- 21
CM1 3BH Essex, Essex
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Showing 1 - 25 of 93 results
How much does the Mercedes GLS-Class depreciate?
Used Mercedes GLS-Class
A used Mercedes GLS-Class (2018) model gains about £35 per month in value.
Factors that affect the appreciation of a Mercedes GLS-Class:
- Mileage
- Age of the vehicle
- Number of previous owners
- Accidents or damage history
- Trim level, equipment, and options
Appreciation is an important part of calculating the total value of owning a Mercedes GLS-Class. In addition to the monthly appreciation of £35, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly value.
How much does a used Mercedes GLS-Class cost? Prices, ratings and depreciation by model year
Model year | Price range* | Avg. Price | Median Mileage | Depreciation | Cars for sale |
|---|---|---|---|---|---|
2024 | £66,696 - £120,794 | £85,196 | 17,000 miles | - | < 10 |
2025 | £68,674 - £113,021 | £83,769 | 5,100 miles | -£18,040 | < 10 |
2026 | £50,085 - £87,537 | £78,190 | 4,000 miles | - | < 10 |
2023 | £50,714 - £88,453 | £67,898 | 37,400 miles | -£20,360 | < 10 |
2021 | £45,045 - £79,943 | £55,369 | 61,400 miles | -£940 | < 10 |
2022 | £45,196 - £57,444 | £52,546 | 40,900 miles | -£9,960 | 12 |
2020 | £39,990 - £47,542 | £43,719 | 63,900 miles | -£1,280 | 10 |
2019 | £29,347 - £44,993 | £36,580 | 56,500 miles | -£2,420 | 11 |
2018 | £22,420 - £43,522 | £31,775 | 68,800 miles | +£420 | 13 |
2017 | £23,225 - £31,295 | £27,069 | 73,500 miles | - | < 10 |
*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market
The data is based on the cars currently listed on AutoUncle
Last updated: 11 November 2026
Comparison of Mercedes GLS-Class variants and prices
Below you can compare prices and depreciation for the 8 most popular Mercedes GLS-Class variants. The table is updated daily with data from the market in United Kingdom.
Variant | Price range* | Avg. Price | Median Mileage | Depreciation | Cars for sale |
|---|---|---|---|---|---|
📈 The best value Business | £70,350 - £112,671 | £89,974 | 2,600 miles | +£260 | 11 |
| £45,993 - £88,993 | £64,457 | 38,400 miles | -£28,880 | 11 | |
| £44,398 - £70,323 | £60,672 | 16,000 miles | -£10,480 | < 10 | |
| £44,597 - £61,793 | £53,460 | 43,600 miles | -£11,180 | < 10 | |
| £35,118 - £54,200 | £47,341 | 36,000 miles | - | < 10 | |
| £39,991 - £48,991 | £43,325 | 77,200 miles | - | < 10 | |
| £34,569 - £44,769 | £39,493 | 58,300 miles | - | < 10 | |
💰 The budget choice AMG line | £23,540 - £70,348 | £36,422 | 66,000 miles | -£7,400 | 31 |
*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market
The data is based on the cars currently listed on AutoUncle
Last updated: 11 November 2026
Which variant should you choose?
💰 The budget choice
The AMG line is the cheapest entry point with an average price of £36,422.
🏆 The most popular
There are the most AMG line for sale right now (31), which gives you the most options to choose from.
📈 The best value
The Business has held its price stable with minimal loss in value over the past year (+£260).
Mercedes GLS-Class (model year 2018) - Price development for the last 2 months and price projection for the next 6 months (October 2026 - May 2027)
Month | Average market price | Lowest market price | Highest market price | Calculation method |
|---|---|---|---|---|
| 2026 - October | £30,720 | £27,900 | £33,520 | Estimate |
| 2026 - November | £31,140↗ | £27,560 | £34,720 | Estimate |
| 2026 - December | £31,560↗ | - | - | Forecast |
| 2027 - January | £31,960↗ | - | - | Forecast |
| 2027 - February | £32,380↗ | - | - | Forecast |
| 2027 - March | £32,800↗ | - | - | Forecast |
| 2027 - April | £33,220↗ | - | - | Forecast |
| 2027 - May | £33,640↗ | - | - | Forecast |
All estimates and forecasts are based on actual market data
Last updated: 11 November 2026
Average Monthly Depreciation
A summary of the past 12 and an estimation of the next 6 months.
Past 12 months
£420
Next 6 months
£2,500
Price checked by AutoUncle
Super price
Good price
Fair price
A bit pricey
Expensive
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