# Mercedes ML-Class — Used Car Buying Guide

AutoScout's analysis of the Mercedes ML-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-ml-class

## Verdict

- **Best value year**: 2014
- **Ideal trim**: ML250 BlueTEC Sport
- **Target mileage**: 70,000

90,000 miles
- **Max previous owners**: 3
- **Target price**: £13,500

## Why this model

The Mercedes ML-Class from this era, especially the W166 generation, is a fantastic choice if you're looking for a comfortable, spacious, and well-built SUV. It offers a premium feel without the hefty price tag of a brand new one. The diesel engines are generally robust and offer decent economy for a car of its size, making it a solid family hauler or long-distance cruiser.

## What you should pay

For a 2014 ML-Class, especially the ML250 BlueTEC Sport, you should be looking to pay around 

13,000-

14,000. Prices can vary quite a bit based on mileage, condition, and specific options, but this range should get you a good example. Be wary of anything significantly cheaper unless it has very high mileage or known issues.

## Which trim to buy

The ML250 BlueTEC Sport trim is our top pick because it strikes a great balance. You get the more economical 2.1-litre diesel engine, which is still powerful enough for most situations, combined with the sportier looks and enhanced features of the Sport trim. This includes larger alloy wheels, a more aggressive body kit, and often upgraded interior trim, giving you that desirable Mercedes aesthetic without jumping to the thirstier ML350 or the higher running costs of the AMG Line.

## What to check before you buy

- Air suspension compressor/bags can fail, leading to costly repairs.
- Diesel Particulate Filter (DPF) issues if mainly used for short journeys.
- AdBlue system faults are not uncommon on later diesel models.
- Electrical gremlins, such as sensor failures or infotainment glitches.
- Transmission fluid leaks or rough shifts, though less common, can occur.

## Running costs

Running costs for a 2014 ML250 BlueTEC are reasonable for a large premium SUV. You can expect around 35-40 mpg in real-world driving. Road tax (VED) for a 2014 ML250 BlueTEC is typically in Band H or I, meaning around 

240-

290 per year, depending on the exact CO2 emissions. Insurance will be in a higher group, likely 35-40, so get a quote before you buy. Servicing can be pricier than a mainstream brand, but independent Mercedes specialists can help keep costs down.

## Key stats

- **Fuel Type**: Diesel
- **Horsepower**: 204 hp
- **Mpg**: 35-40 mpg
- **Reliability Score**: 7/10
- **Safety Rating**: 5-star Euro NCAP (2011)

## Trim comparison

| Trim | Price new | Price used | Key features |
| --- | --- | --- | --- |
| ML250 BlueTEC SE | £46,000 | £12,000 | 18-inch alloy wheels; Artico leather upholstery; Heated front seats |
| ML250 BlueTEC Sport | £48,500 | £13,500 | 19-inch AMG alloy wheels; Sport styling kit; Aluminium interior trim |
| ML350 BlueTEC AMG Line | £55,000 | £16,000 | 20-inch AMG alloy wheels; AMG body styling; Full leather upholstery |

## Depreciation forecast

| Year | Estimated value | Retention |
| --- | --- | --- |
| 2026 | £13,500 | 100% |
| 2027 | £12,300 | 91.1% |
| 2028 | £11,200 | 83% |
| 2029 | £10,200 | 75.6% |
| 2030 | £9,300 | 68.9% |

Buying a Mercedes ML-Class from this era now is a smart move. The steepest part of its depreciation curve has already passed, meaning you'll lose less money in absolute terms compared to buying a newer model. It's reached a point where it offers excellent value for money, providing luxury and capability at a much more accessible price.

Total value lost since new: 31.1%.

## Alternatives to consider

- BMW X5 (F15)
- Audi Q7 (4L)
- [Volvo XC90](https://autoscout.fyi/cars/volvo-xc90.md)

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