Infiniti FX50 S Auto (2012)
Estimated running costs and MOT pass rates from 38 MOT tests in 2024.
Annual Cost
£2,491
£208/month
MOT Pass Rate
87%
Good
Road Tax
£410
Estimated/year
Est. Insurance
Grp 30-42
2993cc Diesel
Solid Option
87% pass rate, £2,491/year to run. 5 points above average.
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Annual Running Costs
~40 mpg
Estimated CO2 band
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
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 Infiniti FX50 S Autos from 2012 ended in a pass in 2024, when they were about 12 years old. That's based on 38 tests across the UK, retests included. The average mileage recorded at those tests was 77,751 miles.
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How Does It Compare?
Mileage Analysis
77,751
Average miles
88,800
Expected for age
The average 2012 Infiniti FX50 S Auto had 77,751 miles on the clock at its 2024 MOT, which is in line with the expected 88,800 miles for a 12-year-old car, suggesting normal everyday use.
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About the 2012 Infiniti FX50 S Auto
The 2012 Infiniti FX50 S Auto is a premium performance car. Our records list a 2993cc diesel engine, though engines vary between versions. 38 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. Among all models from 2012, the average MOT pass rate is 78%, and this model beats that benchmark.
With an average of 77,751 miles recorded at its 2024 MOT tests, Infiniti FX50 S Auto owners drive about as much as the UK average.
2012 Infiniti FX50 S Auto Fuel Costs
The 2993cc 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 2012 Infiniti FX50 S Auto?
Total estimated annual running cost is £2,491 (£208/month), broken down as £1,676 fuel, £410 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 2012 Infiniti FX50 S Auto
At 14 years old, the Infiniti FX50 S Auto 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 38 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 outShort journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.
Turbo Wear
Watch outDiesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.
EGR Valve
Watch outExhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.
Dual Mass Flywheel
Watch outLarger 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 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.
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 2012 Infiniti FX50 S Auto 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 |
|---|---|---|---|---|---|
| Infiniti FX50 S Auto(2012) | 87% | £1,676 | £410 | Grp 30-42 | £2,491 |
| Land Rover Range Rover(2013) | 88% | £1,676 | £410 | Grp 30-42 | £2,491same |
| Audi A4(2011) | 82% | £1,676 | £410 | Grp 30-42 | £2,491same |
| Jaguar XF(2014) | 84% | £1,676 | £410 | Grp 30-42 | £2,491same |
| Audi A5(2013) | 85% | £1,676 | £410 | Grp 30-42 | £2,491same |
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 2012 Infiniti FX50 S Auto
Is the 2012 Infiniti FX50 S Auto reliable?
Good reliability. Occasional issues but generally solid. 87% of MOT tests on 2012 Infiniti FX50 S Autos ended in a pass, from 38 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 2012 Infiniti FX50 S Auto cost to run?
Our estimate is £2,491 a year (£208 a month): £1,676 fuel, £410 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 2012 Infiniti FX50 S Auto?
87% of 38 MOT tests on the 2012 Infiniti FX50 S Auto ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 203rd of 650 models first registered in 2012 (top half).
What is the average mileage for a 2012 Infiniti FX50 S Auto?
The average mileage recorded at MOT tests on the 2012 Infiniti FX50 S Auto is 77,751 miles, which is in line with the expected 88,800 miles for a 12-year-old car, suggesting normal everyday use.
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