Lexus NX reliability, MPG and running costs
Figures updated
The Lexus NX is a family suv. In 2024 MOT tests it scored 176 for reliability (100 is average), ranking 36 of 442, and 10.3% failed first time against a UK average of 28.5%. Its most common MOT failure is wipers (3.0% of tests).
Ranked 36 of 442 cars in the 2024 MOT Reliability League, and 1 of 31 family SUVs
In 2024, 27,542 Lexus NXes aged 3 to 20 had an MOT and 10.3% failed first time (UK average 28.5%). Taking age and mileage into account, the Lexus NX is 43% less likely to fail than the average car of the same age and mileage. At the first MOT, at three years old, 6.5% failed (UK 12.7%).
First-time fail rate
10.3%
UK 28.5%
Fail rate at 3 years
6.5%
UK 12.7%
Average miles a year
8,100
Typical age at test: 6 years
Lexus NX MOT failure rate by age
Most common Lexus NX MOT faults
- Wipers: does not clear the windscreen effectively3.0% of tests
- Condition: has a cut in excess of the requirements deep enough to reach the ply or cords1.3% of tests
- Tread depth: tread depth below requirements of 1.6mm0.9% of tests
- Brake pads: less than 1.5 mm thick0.8% of tests
- Condition: has ply or cords exposed0.8% of tests
- Headlamp aim: too high0.7% of tests
What the Lexus NX fails on
| Area | Tests failing | vs similar cars |
|---|---|---|
| Tyres | 3.6% | ▼ 37% less often |
| Visibility | 3.4% | About average |
| Lights and electrics | 1.7% | ▼ 64% less often |
| Brakes | 1.3% | ▼ 64% less often |
| Suspension | 1.1% | ▼ 66% less often |
| Seat belts and airbags | 0.3% | ▼ 32% less often |
| Body and structure | 0.3% | ▼ 74% less often |
| Wheels | 0.1% | ▼ 71% less often |
| Steering | 0.0% | ▼ 96% less often |
| Exhaust and emissions | 0.0% | ▼ 98% less often |
What MPG does the Lexus NX do?
Official economy for the Lexus NX ranges from 36.7 to 49.5mpg across the 115 versions listed by the Vehicle Certification Agency (2018–2025).
Work out a journey's fuel costHow much is road tax on a Lexus NX?
Any Lexus NX first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates).
Work out tax for a specific carLexus NX specs and running costs
Official figures for 115 versions sold in the UK between 2018 and 2025.
Fuel types
Hybrid, Plug-in hybrid
Official economy
36.7–49.5 mpg
CO2
21–175 g/km
Power
197–309 PS
| Version | Fuel | Economy | CO2 | Car tax | Company car tax |
|---|---|---|---|---|---|
| NX 350h NX 350h 2WD244 PS · E-CVT · listed 2025 | Hybrid | 49.5 mpg | 129g | £200 | 31% |
| NX 350h NX 350h Prem Pack 2WD244 PS · E-CVT · listed 2025 | Hybrid | 49.5 mpg | 129g | £200 | 31% |
| NX 350h NX 350h Prem Pack [Pan] 2WD244 PS · E-CVT · listed 2025 | Hybrid | 49.5 mpg | 130g | £200 | 32% |
| NX 350h NX 350h Prem Plus Pack 2WD244 PS · E-CVT · listed 2025 | Hybrid | 48.7 mpg | 132g | £200 | 32% |
| NX 350h NX 350h Prem Plus Pack [Pan] 2WD244 PS · E-CVT · listed 2025 | Hybrid | 47.8 mpg | 133g | £200 | 32% |
| NX 350h NX 350h Takumi Sun 2WD244 PS · E-CVT · listed 2025 | Hybrid | 48.7 mpg | 132g | £200 | 32% |
| NX 350h NX 350h Takumi Pan 2WD244 PS · E-CVT · listed 2025 | Hybrid | 47.8 mpg | 133g | £200 | 32% |
| NX 350h NX 350h AWD244 PS · E-CVT · listed 2025 | Hybrid | 47 mpg | 136g | £200 | 33% |
| NX 350h NX 350h Prem Pack244 PS · E-CVT · listed 2025 | Hybrid | 47 mpg | 136g | £200 | 33% |
| NX 350h NX 350h Prem Pack LL Pro (14") with Elec Seats244 PS · E-CVT · listed 2025 | Hybrid | 47 mpg | 136g | £200 | 33% |
| NX 350h NX 350h Prem Pack [Pan]244 PS · E-CVT · listed 2025 | Hybrid | 47 mpg | 137g | £200 | 33% |
| NX 350h NX 350h Prem Pack [Pan] LL Pro (14") with Elec Seats244 PS · E-CVT · listed 2025 | Hybrid | 46.3 mpg | 137g | £200 | 33% |
| NX 350h NX 350h Prem Plus Pack244 PS · E-CVT · listed 2025 | Hybrid | 44.8 mpg | 144g | £200 | 34% |
| NX 350h NX 350h Prem Plus Pack [Pan]244 PS · E-CVT · listed 2025 | Hybrid | 44.1 mpg | 145g | £200 | 35% |
| NX 350h NX 350h F Sport Prem Plus Pack244 PS · E-CVT · listed 2025 | Hybrid | 44.8 mpg | 143g | £200 | 34% |
Economy and CO2 are official WLTP figures. Car tax is the yearly rate at current rates for a car first registered in the year listed, before any expensive car supplement. Company car tax is the 2026/27 benefit-in-kind rate. Showing the 15 most recent of 115 versions.
Buying a used Lexus NX?
Check the MOT history of the exact car: every result, advisory and mileage reading, free.
Compare the Lexus NX with other family SUVs
Reliability, economy, car tax and running costs side by side.
Other Lexus models
Frequently asked questions
›Is the Lexus NX reliable?
Its MOT record is better than average: the Lexus NX is 43% less likely to fail than the average car of the same age and mileage, with a reliability score of 176 in our 2024 league (100 is average).
›What are common problems with the Lexus NX?
The most common MOT fault is “Wipers: does not clear the windscreen effectively”, found in 3.0% of tests.
›What MPG does the Lexus NX do?
Official economy for the Lexus NX ranges from 36.7 to 49.5mpg across the 115 versions listed by the Vehicle Certification Agency (2018–2025).
›How much is road tax on a Lexus NX?
Any Lexus NX first registered from April 2017 pays the standard rate of £200 a year after its first year (2026/27 rates).
›How many Lexus NXes fail their MOT?
10.3% of Lexus NXes aged 3 to 20 failed their MOT first time in 2024, and 6.5% failed at their first MOT.
Sources: DVSA anonymised MOT tests 2024, all versions of the Lexus NX combined (Open Government Licence v3.0); official economy and CO2 from Vehicle Certification Agency data, © Crown copyright. VCA cannot accept liability for its accuracy. How we calculate the league.