Mercedes ML300 (2010)

Estimated running costs and MOT pass rates from 30 MOT tests in 2024.

Annual Cost

£2,341

£195/month

MOT Pass Rate

90%

Excellent

Road Tax

£410

Estimated/year

Est. Insurance

Grp 30-42

2987cc Diesel

Great Choice

90% pass rate, £2,341/year to run. 8 points above average.

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Diesel2987cc16 years old30 tests119k miles avg

Annual Running Costs

Fuel (Diesel, 2987cc)

~40 mpg

£1,676

Road Tax

Estimated CO2 band

£410

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£2,341

Per month£195/mo

Per week£45/wk

Estimates based on 7,400 miles/year (UK average), diesel at 199.33p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included.

Reliability Verdict

90% MOT pass rate(Excellent)

0%All-model avg: 82%100%

Excellent reliability. Very few MOT failures. That's 8 points above the average of 82% across all models in our data.

90% of MOT tests on Mercedes ML300s from 2010 ended in a pass in 2024, when they were about 14 years old. That's based on 30 tests across the UK, retests included. The average mileage recorded at those tests was 119,114 miles.

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How Does It Compare?

Rank among 2010 models70th of 558(top 13%)

Rank among Mercedes models669th of 1,376(top half)

vs average of all models+8%(82% avg)

vs 2010 models average+15%(75% avg)

vs Mercedes average+3%(87% avg)

Mileage Analysis

119,114

Average miles

103,600

Expected for age

The average 2010 Mercedes ML300 had 119,114 miles on the clock at its 2024 MOT, which is in line with the expected 103,600 miles for a 14-year-old car, suggesting normal everyday use.

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Similar Cars to Consider

BMW 3 Series

2008 · 2926cc Diesel

£2,491/year

80%

-10%

Audi A4

2011 · 2967cc Diesel

£2,491/year

82%

-8%

Audi A5

2010 · 2967cc Diesel

£2,491/year

82%

-8%

Jaguar XF

2012 · 2993cc Diesel

£2,491/year

82%

-8%

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About the 2010 Mercedes ML300

The 2010 Mercedes ML300 is a premium performance car. Our records list a 2987cc diesel engine, though engines vary between versions. 30 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It ranks in the top 13% of all 2010 models for MOT pass rate.

With an average of 119,114 miles recorded at its 2024 MOT tests, Mercedes ML300 owners drive about as much as the UK average.

2010 Mercedes ML300 Fuel Costs

The 2987cc diesel engine is on the larger side, so fuel won't be this car's strong point. Expect around 40 mpg in mixed driving, which works out to roughly £1,676 per year with diesel at 199.33p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2010 Mercedes ML300?

Total estimated annual running cost is £2,341 (£195/month), broken down as £1,676 fuel, £410 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 90% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2010 Mercedes ML300

At 16 years old, the Mercedes ML300 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. Note: with only 30 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Watch out

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Clutch Wear

Watch out

With an average of 119k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.

Brake Discs and Pads

Medium risk

High-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2010 Mercedes ML300 stacks up against similar cars for estimated annual running costs, insurance group, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Est. Ins. Group	Total/yr
Mercedes ML300(2010)	90%	£1,676	£410	Grp 30-42	£2,341
BMW 3 Series(2008)	80%	£1,676	£410	Grp 30-42	£2,491+£150
Audi A4(2011)	82%	£1,676	£410	Grp 30-42	£2,491+£150
Audi A5(2010)	82%	£1,676	£410	Grp 30-42	£2,491+£150
Jaguar XF(2012)	82%	£1,676	£410	Grp 30-42	£2,491+£150

Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.

Questions about the 2010 Mercedes ML300

Is the 2010 Mercedes ML300 reliable?

Excellent reliability. Very few MOT failures. 90% of MOT tests on 2010 Mercedes ML300s ended in a pass, from 30 tests (DVSA MOT data for tests in 2024, retests included). That's 8 points above the average of 82% across all models in the same data.

How much does a 2010 Mercedes ML300 cost to run?

Our estimate is £2,341 a year (£195 a month): £1,676 fuel, £410 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2010 Mercedes ML300?

90% of 30 MOT tests on the 2010 Mercedes ML300 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 70th of 558 models first registered in 2010 (top 13%).

What is the average mileage for a 2010 Mercedes ML300?

The average mileage recorded at MOT tests on the 2010 Mercedes ML300 is 119,114 miles, which is in line with the expected 103,600 miles for a 14-year-old car, suggesting normal everyday use.