MERCEDES 350 (2010)
Running costs, reliability data, and common problems from 93 real MOT tests.
Annual Cost
£2,757
£230/month
MOT Pass Rate
87%
Good
Road Tax
£760
Based on CC/year
Insurance
Grp 35-50
3498cc Petrol
Solid Option
87% pass rate, £2757/year to run. 5 points above average.
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Annual Running Costs
~30 mpg
Based on 3498cc
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 16 years old, 87% of MERCEDES 350s from 2010 passed their MOT first time in 2026. That's based on 93 tests across the UK. The average mileage at this age is 89,441 miles.
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How Does It Compare?
Mileage Analysis
89,441
Average miles
118,400
Expected for age
The average 2010 MERCEDES 350 has 89,441 miles on the clock, which is below the expected 118,400 miles for a 16-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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MERCEDES 350 by Year
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About the 2010 MERCEDES 350
The 2010 MERCEDES 350 is a performance with a 3498cc petrol engine. 93 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 19% of all 2010 cars for reliability.
With an average of 89,441 miles at 16 years old, MERCEDES 350 owners tend to use this car less than the typical driver.
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 £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2010 MERCEDES 350?
Total estimated annual running cost is £2,757 (£230/month), broken down as £1592 fuel, £760 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
Based on the 2010 MERCEDES 350's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 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 riskLarger 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 outAt 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 outRubber 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 riskWith 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 riskHigh-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 riskAlways 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 annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| MERCEDES 350(2010) | 87% | £1592 | £760 | Grp 35-50 | £2757 |
| MERCEDES E(2010) | 80% | £1592 | £250 | Grp 35-50 | £2247-£510 |
| LAND ROVER FREELANDER(2008) | 76% | £1592 | £250 | Grp 35-50 | £2397-£360 |
| BMW X1(2011) | 81% | £1592 | £250 | Grp 30-42 | £2247-£510 |
| MERCEDES CLC(2009) | 73% | £1592 | £250 | Grp 35-50 | £2397-£360 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Mercedes Models
Explore other Mercedes cars or similar models in the same category.
MERCEDES A
2019 · 1461cc Diesel
MERCEDES C
2017 · 1991cc Hybrid
MERCEDES A-CLASS
2017 · 1461cc Diesel
MERCEDES E
2010 · 3495cc Petrol
LAND ROVER FREELANDER
2008 · 3192cc Petrol
BMW X1
2011 · 3000cc Petrol
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