Is the 2015 LEXUS NX reliable?

Excellent reliability. Very few MOT failures. 92% of LEXUS NXs from 2015 passed their MOT first time in 2026, based on 5,302 tests. That's 10 points above the national average of 82%.

How much does a 2015 LEXUS NX cost to run?

Estimated annual running cost is £2,277 (£190/month), including £1592 fuel, £430 road tax, £55 MOT, and £200 predicted repairs.

What is the MOT pass rate for a 2015 LEXUS NX?

The 2015 LEXUS NX has a 92% MOT pass rate based on 5,302 tests in 2026. This ranks 116 out of 559 cars from 2015.

Which year LEXUS NX is most reliable?

The 2021 LEXUS NX has the highest MOT pass rate at 97%. The least reliable year is 2015 at 92%.

What is the average mileage for a 2015 LEXUS NX?

The average mileage for a 2015 LEXUS NX is 71,193 miles, which is in line with the expected 81,400 miles for a 11-year-old car, suggesting normal everyday use.

LEXUS NX (2015)

Running costs, reliability data, and common problems from 5,302 real MOT tests.

Annual Cost

£2,277

£190/month

MOT Pass Rate

92%

Excellent

Road Tax

£430

Based on CC/year

Insurance

Grp 25-38

2494cc Hybrid

Great Choice

92% pass rate, £2277/year to run. 10 points above average.

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Hybrid2494cc11 years old5,302 tests71k miles avg

Annual Running Costs

Fuel (Hybrid, 2494cc)

~30 mpg

£1,592

Road Tax

Based on 2494cc

£430

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£2,277

Per month£190/mo

Per week£44/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

92% MOT pass rate(Excellent)

0%National avg: 82%100%

Excellent reliability. Very few MOT failures. That's 10 points above the national average of 82%. It also outperforms the LEXUS brand average of 87%.

At 11 years old, 92% of LEXUS NXs from 2015 passed their MOT first time in 2026. That's based on 5,302 tests across the UK. The average mileage at this age is 71,193 miles.

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How Does It Compare?

Rank among 2015 cars116th of 559(top 21%)

Rank among LEXUS models84th of 301(top 28%)

vs national average+10%(82% avg)

vs 2015 cars average+9%(83% avg)

vs LEXUS average+5%(87% avg)

Mileage Analysis

71,193

Average miles

81,400

Expected for age

The average 2015 LEXUS NX has 71,193 miles on the clock, which is in line with the expected 81,400 miles for a 11-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2021 model with a 97% MOT pass rate, while the 2015 model has the lowest at 92%. Consider a different year if reliability is a priority.

LEXUS NX by Year

Year	Pass Rate	Tests	Avg Mileage
2021	97%	7,761	23,811 mi
2020	96%	7,057	29,902 mi
2019	95%	7,428	37,046 mi
2018	94%	7,462	45,699 mi
2017	94%	6,538	53,017 mi
2016	93%	6,321	60,725 mi
2015	92%	5,302	71,193 mi
2014	93%	1,450	73,502 mi

Similar Cars to Consider

MITSUBISHI OUTLANDER

2015 · 1998cc Hybrid

£1,867/year

83%

-9%

BMW X5

2016 · 2000cc Hybrid

£1,717/year

92%

same

KIA OPTIMA

2017 · 1999cc Hybrid

£1,922/year

87%

-5%

TOYOTA ESTIMA

2013 · 2400cc Hybrid

£2,097/year

91%

-1%

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About the 2015 LEXUS NX

The 2015 LEXUS NX is a premium with a 2494cc hybrid engine. 5,302 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. It ranks in the top 21% of all 2015 cars for reliability.

With an average of 71,193 miles at 11 years old, LEXUS NX owners drive about as much as the UK average.

2015 LEXUS NX Fuel Costs

The 2494cc hybrid engine offers a reasonable balance between performance and economy. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current hybrid prices of 142p per litre (based on 7,400 miles per year). As a hybrid, real-world fuel costs will vary significantly depending on how much electric-only driving you do.

What does it cost to own a 2015 LEXUS NX?

Total estimated annual running cost is £2,277 (£190/month), broken down as £1592 fuel, £430 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 92% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

LEXUS NX Reliability Trend

The LEXUS NX has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.

Buying a Used 2015 LEXUS NX

At 11 years old, the LEXUS NX 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. With 5,302 MOT tests in our data, there's strong statistical confidence in these figures.

Common Issues to Watch For

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

Hybrid Battery Health

Watch out

After 11 years, hybrid battery capacity may have reduced. A full replacement costs £2,000-£4,000, though reconditioning is cheaper at £500-£1,500.

Inverter and Power Electronics

Medium risk

The inverter converts DC to AC for the electric motor. Failures are expensive (£1,500+) but relatively rare. Listen for unusual buzzing sounds.

Regenerative Braking

Medium risk

Brake discs can corrode from reduced use (the electric motor handles most braking). Surface rust is normal but deep pitting needs attention.

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 LEXUS NX stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
LEXUS NX(2015)	92%	£1592	£430	Grp 25-38	£2277
MITSUBISHI OUTLANDER(2015)	83%	£1327	£135	Grp 18-32	£1867-£410
BMW X5(2016)	92%	£1327	£135	Grp 18-32	£1717-£560
KIA OPTIMA(2017)	87%	£1327	£190	Grp 18-32	£1922-£355
TOYOTA ESTIMA(2013)	91%	£1592	£250	Grp 25-38	£2097-£180

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.