How much does a 2015 INFINITI QX50 cost to run?

Estimated annual running cost is £2,045 (£170/month), including £1245 fuel, £395 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2015 INFINITI QX50?

The 2015 INFINITI QX50 has a 89% MOT pass rate based on 71 tests in 2026. This ranks 205 out of 559 cars from 2015.

Which year INFINITI QX50 is most reliable?

The 2016 INFINITI QX50 has the highest MOT pass rate at 89%. The least reliable year is 2015 at 89%.

INFINITI QX50 (2015)

Q: Is the 2015 INFINITI QX50 reliable?

Good reliability. Occasional issues but generally solid. 89% of INFINITI QX50s from 2015 passed their MOT first time in 2026, based on 71 tests. That's 7 points above the national average of 82%.

Q: What is the average mileage for a 2015 INFINITI QX50?

The average mileage for a 2015 INFINITI QX50 is 59,084 miles, which is below the expected 81,400 miles for a 11-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 71 real MOT tests.

Annual Cost

£2,045

£170/month

MOT Pass Rate

89%

Good

Road Tax

£395

Based on CC/year

Insurance

Grp 30-42

2993cc Diesel

Solid Option

89% pass rate, £2045/year to run. 7 points above average.

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Diesel2993cc11 years old71 tests59k miles avg

Annual Running Costs

Fuel (Diesel, 2993cc)

~40 mpg

£1,245

Road Tax

Based on 2993cc

£395

MOT Test

£55

Predicted Repairs

£350

Total per year£2,045

Per month£170/mo

Per week£39/wk

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

89% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 7 points above the national average of 82%.

At 11 years old, 89% of INFINITI QX50s from 2015 passed their MOT first time in 2026. That's based on 71 tests across the UK. The average mileage at this age is 59,084 miles.

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How Does It Compare?

Rank among 2015 cars205th of 559(top 37%)

Rank among INFINITI models17th of 47(top 36%)

vs national average+7%(82% avg)

vs 2015 cars average+6%(83% avg)

vs INFINITI average+2%(87% avg)

Mileage Analysis

59,084

Average miles

81,400

Expected for age

The average 2015 INFINITI QX50 has 59,084 miles on the clock, which is below the expected 81,400 miles for a 11-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

The most reliable year is the 2016 model with a 89% MOT pass rate, while the 2015 model has the lowest at 89%. Consider a different year if reliability is a priority.

INFINITI QX50 by Year

Year	Pass Rate	Tests	Avg Mileage
2016	89%	72	58,509 mi
2015	89%	71	59,084 mi

Similar Cars to Consider

AUDI A5

2017 · 2967cc Diesel

£1,840/year

89%

same

MERCEDES GLC

2017 · 2987cc Diesel

£1,690/year

90%

+1%

LAND ROVER RANGE ROVER

2013 · 2926cc Diesel

£1,900/year

88%

-1%

JAGUAR XF

2014 · 2993cc Diesel

£1,900/year

84%

-5%

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About the 2015 INFINITI QX50

The 2015 INFINITI QX50 is a premium performance with a 2993cc diesel engine. 71 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 2015, the average MOT pass rate is 83%, and this model beats that benchmark.

With an average of 59,084 miles at 11 years old, INFINITI QX50 owners tend to use this car less than the typical driver.

2015 INFINITI QX50 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 £1,245 per year at current diesel prices of 148p per litre (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 2015 INFINITI QX50?

Total estimated annual running cost is £2,045 (£170/month), broken down as £1245 fuel, £395 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 89% pass rate. Keeping on top of servicing will help avoid surprises.

Buying a Used 2015 INFINITI QX50

At 11 years old, the INFINITI QX50 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 71 tests in our data, these figures should be treated as indicative rather than definitive.

Common Issues to Watch For

Based on the 2015 INFINITI QX50's fuel type, age, and engine size, these are the most likely problem areas to check.

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.

AdBlue System

Medium risk

Post-2015 diesels use AdBlue for emissions. Sensor failures and tank heater issues are common. Budget £200-£500 for repairs.

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.

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 2015 INFINITI QX50 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
INFINITI QX50(2015)	89%	£1245	£395	Grp 30-42	£2045
AUDI A5(2017)	89%	£1245	£190	Grp 30-42	£1840-£205
MERCEDES GLC(2017)	90%	£1245	£190	Grp 30-42	£1690-£355
LAND ROVER RANGE ROVER(2013)	88%	£1245	£250	Grp 30-42	£1900-£145
JAGUAR XF(2014)	84%	£1245	£250	Grp 30-42	£1900-£145

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.