Lexus RX400 (2008)
Estimated running costs and MOT pass rates from 40 MOT tests in 2024.
Annual Cost
£1,330
£111/month
MOT Pass Rate
68%
Below Avg
Road Tax
£20
Estimated/year
Est. Insurance
n/a
3311cc Electric
Proceed With Caution
68% pass rate, £1,330/year to run. 14 points below average.
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Annual Running Costs
Home charging at about 7.5p a mile
Band A (zero emission)
Higher estimate due to low pass rate
Estimates based on 7,400 miles/year (UK average), home charging at about 7.5p a mile, GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included.
Reliability Verdict
Below average reliability. Budget extra for maintenance and repairs. That's 14 points below the average of 82% across all models in our data. It falls below the Lexus brand average of 87%.
68% of MOT tests on Lexus RX400s from 2008 ended in a pass in 2024, when they were about 16 years old. That's based on 40 tests across the UK, retests included. The average mileage recorded at those tests was 139,886 miles.
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How Does It Compare?
Mileage Analysis
139,886
Average miles
118,400
Expected for age
The average 2008 Lexus RX400 had 139,886 miles on the clock at its 2024 MOT, which is in line with the expected 118,400 miles for a 16-year-old car, suggesting normal everyday use.
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Lexus RX400 by Year
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About the 2008 Lexus RX400
The 2008 Lexus RX400 is a premium performance car. Our records list this model year as electric, but most of the model's other years are petrol or diesel, so the fuel type and running costs here may be wrong. 40 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It sits in the bottom 12% of 2008 models for MOT pass rate.
With an average of 139,886 miles recorded at its 2024 MOT tests, Lexus RX400 owners drive about as much as the UK average.
What does it cost to own a 2008 Lexus RX400?
Total estimated annual running cost is £1,330 (£111/month), broken down as £555 electricity, £20 road tax, £55 MOT, and £700 predicted repairs. The higher repair estimate reflects the 68% MOT pass rate. Cars in this bracket tend to need work on suspension, brakes, and emissions components.
Buying a Used 2008 Lexus RX400
At 18 years old, the Lexus RX400 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 40 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.
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.
Clutch Wear
Watch outWith an average of 140k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.
Brake Discs and Pads
Medium riskHigh-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.
Engine Mounts
Medium riskWorn engine mounts cause excessive vibration and movement. Replacement costs £150-£400 per mount. Check for vibration at idle with the bonnet open.
Higher Than Average Failure Rate
Watch outWith a 68% MOT pass rate, this model fails more often than most. Budget for unexpected repairs and get a thorough pre-purchase inspection.
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 2008 Lexus RX400 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 |
|---|---|---|---|---|---|
| Lexus RX400(2008) | 68% | £555 | £20 | n/a | £1,330 |
| Isuzu Rodeo(2006) | 72% | £555 | £20 | n/a | £1,130-£200 |
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 2008 Lexus RX400
Is the 2008 Lexus RX400 reliable?
Below average reliability. Budget extra for maintenance and repairs. 68% of MOT tests on 2008 Lexus RX400s ended in a pass, from 40 tests (DVSA MOT data for tests in 2024, retests included). That's 14 points below the average of 82% across all models in the same data.
How much does a 2008 Lexus RX400 cost to run?
Our estimate is £1,330 a year (£111 a month): £555 electricity, £20 road tax, £55 MOT and £700 predicted repairs, based on 7,400 miles a year. Insurance is not included.
What is the MOT pass rate for a 2008 Lexus RX400?
68% of 40 MOT tests on the 2008 Lexus RX400 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 503rd of 566 models first registered in 2008 (bottom 12%).
What is the average mileage for a 2008 Lexus RX400?
The average mileage recorded at MOT tests on the 2008 Lexus RX400 is 139,886 miles, which is in line with the expected 118,400 miles for a 16-year-old car, suggesting normal everyday use.
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