How much does a 2003 LEXUS LS430 cost to run?

Estimated annual running cost is £2,757 (£230/month), including £1592 fuel, £760 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2003 LEXUS LS430?

The 2003 LEXUS LS430 has a 88% MOT pass rate based on 304 tests in 2026. This ranks 33 out of 445 cars from 2003.

Which year LEXUS LS430 is most reliable?

The 2003 LEXUS LS430 has the highest MOT pass rate at 88%. The least reliable year is 2001 at 83%.

LEXUS LS430 (2003)

Q: Is the 2003 LEXUS LS430 reliable?

Good reliability. Occasional issues but generally solid. 88% of LEXUS LS430s from 2003 passed their MOT first time in 2026, based on 304 tests. That's 6 points above the national average of 82%.

Q: What is the average mileage for a 2003 LEXUS LS430?

The average mileage for a 2003 LEXUS LS430 is 130,739 miles, which is below the expected 170,200 miles for a 23-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 304 real MOT tests.

Annual Cost

£2,757

£230/month

MOT Pass Rate

88%

Good

Road Tax

£760

Based on CC/year

Insurance

Grp 35-50

4293cc Petrol

Solid Option

88% pass rate, £2757/year to run. 6 points above average.

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Petrol4293cc23 years old304 tests131k miles avg

Annual Running Costs

Fuel (Petrol, 4293cc)

~30 mpg

£1,592

Road Tax

Based on 4293cc

£760

MOT Test

£55

Predicted Repairs

£350

Total per year£2,757

Per month£230/mo

Per week£53/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

88% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.

At 23 years old, 88% of LEXUS LS430s from 2003 passed their MOT first time in 2026. That's based on 304 tests across the UK. The average mileage at this age is 130,739 miles.

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How Does It Compare?

Rank among 2003 cars33th of 445(top 7%)

Rank among LEXUS models131th of 301(top 44%)

vs national average+6%(82% avg)

vs 2003 cars average+16%(72% avg)

vs LEXUS average+1%(87% avg)

Mileage Analysis

130,739

Average miles

170,200

Expected for age

The average 2003 LEXUS LS430 has 130,739 miles on the clock, which is below the expected 170,200 miles for a 23-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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LEXUS LS430 by Year

Year	Pass Rate	Tests	Avg Mileage
2006	86%	146	128,198 mi
2005	87%	464	128,795 mi
2004	84%	521	131,154 mi
2003	88%	304	130,739 mi
2002	87%	293	135,316 mi
2001	83%	289	130,783 mi
2000	89%	46	148,678 mi

Similar Cars to Consider

LAND ROVER RANGE ROVER SPORT

2005 · 4394cc Petrol

£2,247/year

82%

-6%

PORSCHE 911

2005 · 3824cc Petrol

£2,097/year

90%

+2%

LAND ROVER RANGE ROVER

2003 · 3950cc Petrol

£2,397/year

77%

-11%

ROVER 75

2004 · 4601cc Petrol

£2,597/year

69%

-19%

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About the 2003 LEXUS LS430

The 2003 LEXUS LS430 is a premium performance with a 4293cc petrol engine. 304 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. It ranks in the top 7% of all 2003 cars for reliability.

With an average of 130,739 miles at 23 years old, LEXUS LS430 owners tend to use this car less than the typical driver.

2003 LEXUS LS430 Fuel Costs

The 4293cc 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 2003 LEXUS LS430?

Total estimated annual running cost is £2,757 (£230/month), broken down as £1592 fuel, £760 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.

LEXUS LS430 Reliability Trend

The LEXUS LS430 has maintained consistent MOT pass rates across model years, varying by only 0 percentage points.

Buying a Used 2003 LEXUS LS430

At 23 years old, the LEXUS LS430 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.

Common Issues to Watch For

Based on the 2003 LEXUS LS430's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 23 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.

Oil Consumption

Medium risk

Larger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.

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.

Clutch Wear

Watch out

With an average of 131k 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 risk

High-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 risk

Worn engine mounts cause excessive vibration and movement. Replacement costs £150-£400 per mount. Check for vibration at idle with the bonnet open.

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 2003 LEXUS LS430 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
LEXUS LS430(2003)	88%	£1592	£760	Grp 35-50	£2757
LAND ROVER RANGE ROVER SPORT(2005)	82%	£1592	£250	Grp 35-50	£2247-£510
PORSCHE 911(2005)	90%	£1592	£250	Grp 35-50	£2097-£660
LAND ROVER RANGE ROVER(2003)	77%	£1592	£250	Grp 35-50	£2397-£360
ROVER 75(2004)	69%	£1592	£250	Grp 35-50	£2597-£160

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.