Mercedes 350 (2010)

Estimated running costs and MOT pass rates from 93 MOT tests in 2024.

Annual Cost

£3,153

£263/month

MOT Pass Rate

87%

Good

Road Tax

£790

Estimated/year

Est. Insurance

Grp 35-50

3498cc Petrol

Solid Option

87% pass rate, £3,153/year to run. 5 points above average.

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Petrol3498cc16 years old93 tests89k miles avg

Annual Running Costs

Fuel (Petrol, 3498cc)

~30 mpg

£1,958

Road Tax

Estimated CO2 band

£790

MOT Test

£55

Predicted Repairs

£350

Total per year£3,153

Per month£263/mo

Per week£61/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p 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

87% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the average of 82% across all models in our data.

87% of MOT tests on Mercedes 350s from 2010 ended in a pass in 2024, when they were about 14 years old. That's based on 93 tests across the UK, retests included. The average mileage recorded at those tests was 89,441 miles.

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How Does It Compare?

Rank among 2010 models107th of 558(top 20%)

Rank among Mercedes models816th of 1,376(bottom half)

vs average of all models+5%(82% avg)

vs 2010 models average+12%(75% avg)

vs Mercedes average+0%(87% avg)

Mileage Analysis

89,441

Average miles

103,600

Expected for age

The average 2010 Mercedes 350 had 89,441 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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Mercedes 350 by Year

Year	Pass Rate	Tests	Avg Mileage
2016	91%	46	60,010 mi
2012	91%	34	90,714 mi
2011	81%	43	116,323 mi
2010	87%	93	89,441 mi
2008	98%	46	57,282 mi

Similar Cars to Consider

Mercedes E

2010 · 3495cc Petrol

£3,153/year

80%

-7%

Land Rover Freelander

2008 · 3192cc Petrol

£3,303/year

76%

-11%

BMW X1

2011 · 3000cc Petrol

£2,808/year

81%

-6%

Mercedes CLC

2009 · 3199cc Petrol

£3,303/year

73%

-14%

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About the 2010 Mercedes 350

The 2010 Mercedes 350 is a premium performance car. Our records list a 3498cc petrol engine, though engines vary between versions. 93 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It ranks in the top 20% of all 2010 models for MOT pass rate.

With an average of 89,441 miles recorded at its 2024 MOT tests, Mercedes 350 owners drive about as much as the UK average.

2010 Mercedes 350 Fuel Costs

The 3498cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,958 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).

What does it cost to own a 2010 Mercedes 350?

Total estimated annual running cost is £3,153 (£263/month), broken down as £1,958 fuel, £790 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 87% pass rate. Keeping on top of servicing will help avoid surprises.

Buying a Used 2010 Mercedes 350

At 16 years old, the Mercedes 350 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 93 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.

Timing Chain / Belt

Watch out

At 16 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.

Oil Consumption

Medium risk

Larger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.

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

Medium risk

With an average of 89k 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 350 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 350(2010)	87%	£1,958	£790	Grp 35-50	£3,153
Mercedes E(2010)	80%	£1,958	£790	Grp 35-50	£3,153same
Land Rover Freelander(2008)	76%	£1,958	£790	Grp 35-50	£3,303+£150
BMW X1(2011)	81%	£1,958	£445	Grp 30-42	£2,808-£345
Mercedes CLC(2009)	73%	£1,958	£790	Grp 35-50	£3,303+£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 350

Is the 2010 Mercedes 350 reliable?

Good reliability. Occasional issues but generally solid. 87% of MOT tests on 2010 Mercedes 350s ended in a pass, from 93 tests (DVSA MOT data for tests in 2024, retests included). That's 5 points above the average of 82% across all models in the same data.

How much does a 2010 Mercedes 350 cost to run?

Our estimate is £3,153 a year (£263 a month): £1,958 fuel, £790 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2010 Mercedes 350?

87% of 93 MOT tests on the 2010 Mercedes 350 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 107th of 558 models first registered in 2010 (top 20%).

What is the average mileage for a 2010 Mercedes 350?

The average mileage recorded at MOT tests on the 2010 Mercedes 350 is 89,441 miles, which is in line with the expected 103,600 miles for a 14-year-old car, suggesting normal everyday use.