# Mercedes G-Class — Used Car Buying Guide

AutoScout's analysis of the Mercedes G-Class 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-g-class

## Verdict

- **Best value year**: 2019
- **Ideal trim**: G350d
- **Target mileage**: 40,000
–60,000 miles
- **Max previous owners**: 2
- **Target price**: £90,000

## Why this model

The Mercedes G-Class is an absolute icon, offering unparalleled road presence, serious off-road capability, and a surprisingly luxurious interior. It holds its value incredibly well, making it a solid long-term investment. It's a statement car that combines ruggedness with high-end comfort, perfect if you want something truly distinctive and capable.

## What you should pay

For a 2019 G350d with around 40,000-60,000 miles, you should aim to pay around £90,000. Prices can vary significantly based on specification, condition, and mileage, but this is a realistic target for a well-maintained example. Be prepared for strong negotiation as these cars are highly sought after.

## Which trim to buy

The G350d offers the best balance of performance, running costs, and initial purchase price within the G-Class range. Its diesel engine provides strong torque for effortless cruising and off-roading, while being more fuel-efficient than the petrol G500 or the mighty G63 AMG. You still get all the luxury and presence without the extreme running costs of the higher-performance models.

## What to check before you buy

- Potential for rust on older models (less so on W463 generation from 2018 onwards, but worth checking), complex electronics can develop glitches, air suspension issues (if fitted), high maintenance costs for parts and labour.
- Check for uneven tyre wear, which can indicate alignment issues or suspension problems.
- Listen for any unusual noises from the drivetrain, especially on test drive.

## Running costs

Running a G-Class isn't cheap! Fuel for the G350d will be around 20-25 pence per mile at current diesel prices (assuming 28-30 mpg and £1.50/litre). Road tax (VED) for cars registered after April 2017 with a new list price over £40,000 is £520 per year for the first five years after the first year, then £190 per year. Insurance will be very high due to the car's value and desirability, likely in the thousands per year. Servicing and parts are also premium-priced.

## Key stats

- **Fuel Type**: Diesel
- **Horsepower**: 286 hp
- **Mpg**: 28-30 mpg (combined)
- **Reliability Score**: Good, known for robust build but complex electronics can be costly to fix.
- **Safety Rating**: Excellent, though not specifically Euro NCAP rated for this generation, it's built like a tank with advanced safety features.

## Trim comparison

| Trim | Price new | Price used | Key features |
| --- | --- | --- | --- |
| G350d | £94,000 | £90,000 | 20-inch alloy wheels; LED high-performance headlights; Leather upholstery |
| G400d | £105,000 | £100,000 | More powerful 3.0-litre inline-six diesel engine; Multibeam LED headlights; Wider range of interior trim options |
| G63 AMG | £147,000 | £135,000 | AMG-specific body styling; 4.0-litre V8 biturbo petrol engine (577 hp); AMG Ride Control suspension |

## Depreciation forecast

| Year | Estimated value | Retention |
| --- | --- | --- |
| 2026 | £90,000 | 0% |
| 2027 | £80,000 | 11.1% |
| 2028 | £72,000 | 10% |
| 2029 | £66,000 | 8.3% |
| 2030 | £60,000 | 9.1% |

The G-Class holds its value exceptionally well, making any year a relatively safe bet. However, buying a 3-5 year old model like a 2019 G350d means the steepest part of the depreciation curve has already been absorbed by the first owner. While it will still depreciate, the rate is much slower than most luxury SUVs, offering excellent long-term retention.

Total value lost since new: 33.3%.

## Alternatives to consider

- Land Rover Defender 110
- [Porsche Cayenne](https://autoscout.fyi/cars/porsche-cayenne.md)
- [Bentley Bentayga](https://autoscout.fyi/cars/bentley-bentayga.md)

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