LEXUS RX450H (2014)
Running costs, reliability data, and common problems from 39 real MOT tests.
Annual Cost
£2,607
£217/month
MOT Pass Rate
95%
Excellent
Road Tax
£760
Based on CC/year
Insurance
Grp 35-50
3300cc Petrol
Great Choice
95% pass rate, £2607/year to run. 13 points above average.
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Annual Running Costs
~30 mpg
Based on 3300cc
Low estimate due to excellent reliability
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
Excellent reliability. Very few MOT failures. That's 13 points above the national average of 82%. It also outperforms the LEXUS brand average of 87%.
At 12 years old, 95% of LEXUS RX450Hs from 2014 passed their MOT first time in 2026. That's based on 39 tests across the UK. The average mileage at this age is 77,392 miles.
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How Does It Compare?
Mileage Analysis
77,392
Average miles
88,800
Expected for age
The average 2014 LEXUS RX450H has 77,392 miles on the clock, which is in line with the expected 88,800 miles for a 12-year-old car, suggesting normal everyday use.
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Best Year to Buy?
The most reliable year is the 2016 model with a 98% MOT pass rate, while the 2005 model has the lowest at 77%. The 2014 sits between the two at 95%.
LEXUS RX450H by Year
Similar Cars to Consider
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About the 2014 LEXUS RX450H
The 2014 LEXUS RX450H is a premium performance with a 3300cc petrol engine. 39 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 12% of all 2014 cars for reliability.
With an average of 77,392 miles at 12 years old, LEXUS RX450H owners drive about as much as the UK average.
2014 LEXUS RX450H Fuel Costs
The 3300cc 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 2014 LEXUS RX450H?
Total estimated annual running cost is £2,607 (£217/month), broken down as £1592 fuel, £760 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 95% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
LEXUS RX450H Reliability Trend
Newer LEXUS RX450Hs show better MOT pass rates than older ones, with an average improvement of 8 percentage points.
Buying a Used 2014 LEXUS RX450H
At 12 years old, the LEXUS RX450H 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. If you're flexible on year, the 2016 model has the highest pass rate at 98%. Note: with only 39 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2014 LEXUS RX450H's fuel type, age, and engine size, these are the most likely problem areas to check.
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 2014 LEXUS RX450H stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| LEXUS RX450H(2014) | 95% | £1592 | £760 | Grp 35-50 | £2607 |
| LEXUS RX 450H LUXURY CVT(2013) | 90% | £1592 | £250 | Grp 35-50 | £2097-£510 |
| LEXUS RX 450H F SPORT CVT(2013) | 89% | £1592 | £250 | Grp 35-50 | £2247-£360 |
| LEXUS RX 450H PREMIER CVT(2013) | 93% | £1592 | £250 | Grp 35-50 | £2097-£510 |
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 Lexus Models
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LEXUS CT
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LEXUS RX 450H LUXURY CVT
2013 · 3456cc Petrol
LEXUS RX 450H F SPORT CVT
2013 · 3456cc Petrol
LEXUS RX 450H PREMIER CVT
2013 · 3456cc Petrol
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