# Mercedes GLA — Used Car Buying Guide

AutoScout's analysis of the Mercedes GLA on the UK used-car market. Backed by 33 million DVSA MOT tests, current AutoTrader pricing, and depreciation curves derived from CAP/Glass's Guide data.

Live interactive report: https://autoscout.fyi/cars/mercedes-gla

## Verdict

- **Best value year**: 2021
- **Ideal trim**: AMG Line
- **Target mileage**: 30,000–50,000 miles
- **Max previous owners**: 2
- **Target price**: £19,489

## Why this model

The Mercedes GLA is a fantastic choice if you're looking for a premium compact SUV that blends style, comfort, and a touch of luxury. It's got that desirable Mercedes badge, a really well-built interior, and it's surprisingly practical for its size. The diesel engines, like the 220d, offer a great balance of performance and fuel economy, making it a solid all-rounder for daily commutes and longer trips.

## What you should pay

Based on current UK market data for February 2026, a 2021 Mercedes GLA 220d AMG Line with around 30,000-50,000 miles typically sells for around £19,500. This is a sweet spot where the initial steep depreciation has already occurred, but you're still getting a relatively modern car with plenty of life left. Prices can vary by a few hundred pounds depending on specific options and condition, but aim for this ballpark.

## Which trim to buy

The AMG Line trim is definitely the one to go for. It really enhances the GLA's sporty looks with its aggressive body kit, larger alloy wheels, and a more dynamic interior. Crucially, it doesn't just look good; it also comes with a host of desirable features as standard, like upgraded infotainment, sports seats, and a more engaging driving experience, without a massive jump in price compared to the entry-level Sport trim. It holds its value better too, making it a smart used buy.

## What to check before you buy

- AdBlue system faults (diesel models)
- MBUX infotainment glitches
- Minor electrical gremlins
- Suspension noise on rough roads

## Running costs

For a GLA 220d, fuel costs will be around 15-17p per mile, assuming diesel at £1.50/litre and 45-50 mpg. Road tax (VED) for cars registered after April 2017 is £190 per year. Insurance will vary, but expect it to be moderate for a premium brand SUV, likely in the £600-£1000 range annually depending on your age, location, and no-claims bonus.

## Key stats

- **Fuel Type**: Diesel
- **Horsepower**: 190 hp
- **Mpg**: 45-50 mpg
- **Reliability Score**: Above Average
- **Safety Rating**: 5-star Euro NCAP (2019)

## Trim comparison

| Trim | Price new | Price used | Key features |
| --- | --- | --- | --- |
| Sport | £32,000 | £15,000 | 18-inch alloy wheels; LED headlights; Artico leather upholstery |
| AMG Line | £35,000 | £17,000 | 19-inch AMG alloy wheels; AMG body styling; Sports seats |
| AMG Line Premium Plus | £39,000 | £19,000 | 20-inch AMG alloy wheels; Panoramic sunroof; Burmester surround sound system |

## Depreciation forecast

| Year | Estimated value | Retention |
| --- | --- | --- |
| 2026 | £19,489 | 100% |
| 2027 | £17,000 | 87% |
| 2028 | £14,800 | 76% |
| 2029 | £12,800 | 66% |
| 2030 | £11,100 | 57% |

You're buying the GLA at a great point in its depreciation curve. The initial steep drop in value from new has already happened, so you're getting a premium car for a much more sensible price. While it will continue to depreciate, the rate slows down significantly after the first few years, meaning you'll lose less money each year compared to buying a brand new one.

Total value lost since new: 43%.

## Alternatives to consider

- [BMW X1](https://autoscout.fyi/cars/bmw-x1.md)
- [Audi Q3](https://autoscout.fyi/cars/audi-q3.md)
- [Volvo XC40](https://autoscout.fyi/cars/volvo-xc40.md)

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Source: AutoScout (https://autoscout.fyi). Part of a review of the UK used-car market across 500+ models.