How much does a 2004 LEXUS IS300 cost to run?

Estimated annual running cost is £2,427 (£202/month), including £1592 fuel, £430 road tax, £55 MOT, and £350 predicted repairs.

What is the MOT pass rate for a 2004 LEXUS IS300?

The 2004 LEXUS IS300 has a 80% MOT pass rate based on 265 tests in 2026. This ranks 123 out of 491 cars from 2004.

Which year LEXUS IS300 is most reliable?

The 2016 LEXUS IS300 has the highest MOT pass rate at 98%. The least reliable year is 2001 at 73%.

LEXUS IS300 (2004)

Q: Is the 2004 LEXUS IS300 reliable?

Good reliability. Occasional issues but generally solid. 80% of LEXUS IS300s from 2004 passed their MOT first time in 2026, based on 265 tests. That's 2 points below the national average of 82%.

Q: What is the average mileage for a 2004 LEXUS IS300?

The average mileage for a 2004 LEXUS IS300 is 111,202 miles, which is below the expected 162,800 miles for a 22-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 265 real MOT tests.

Annual Cost

£2,427

£202/month

MOT Pass Rate

80%

Good

Road Tax

£430

Based on CC/year

Insurance

Grp 30-42

2997cc Petrol

Solid Option

80% pass rate, £2427/year to run. Close to the national average.

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Petrol2997cc22 years old265 tests111k miles avg

Annual Running Costs

Fuel (Petrol, 2997cc)

~30 mpg

£1,592

Road Tax

Based on 2997cc

£430

MOT Test

£55

Predicted Repairs

£350

Total per year£2,427

Per month£202/mo

Per week£47/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

80% MOT pass rate(Good)

0%National avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It falls below the LEXUS brand average of 87%.

At 22 years old, 80% of LEXUS IS300s from 2004 passed their MOT first time in 2026. That's based on 265 tests across the UK. The average mileage at this age is 111,202 miles.

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How Does It Compare?

Rank among 2004 cars123th of 491(top 25%)

Rank among LEXUS models246th of 301(top 82%)

vs national average-2%(82% avg)

vs 2004 cars average+8%(72% avg)

vs LEXUS average-7%(87% avg)

Mileage Analysis

111,202

Average miles

162,800

Expected for age

The average 2004 LEXUS IS300 has 111,202 miles on the clock, which is below the expected 162,800 miles for a 22-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

The most reliable year is the 2016 model with a 98% MOT pass rate, while the 2001 model has the lowest at 73%. The 2004 sits between the two at 80%.

LEXUS IS300 by Year

Year	Pass Rate	Tests	Avg Mileage
2018	100%	31	33,082 mi
2017	83%	47	44,028 mi
2016	98%	54	83,188 mi
2015	93%	45	108,740 mi
2014	75%	57	105,616 mi
2013	72%	32	165,163 mi
2005	90%	105	108,662 mi
2004	80%	265	111,202 mi
2003	80%	293	114,003 mi
2002	84%	361	121,943 mi
2001	73%	125	126,707 mi

Similar Cars to Consider

LAND ROVER FREELANDER

2006 · 3192cc Petrol

£2,397/year

70%

-10%

MERCEDES E

2004 · 3199cc Petrol

£2,397/year

78%

-2%

PORSCHE BOXSTER

2005 · 3197cc Petrol

£2,247/year

86%

+6%

BMW X3

2006 · 2996cc Petrol

£2,397/year

78%

-2%

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About the 2004 LEXUS IS300

The 2004 LEXUS IS300 is a premium performance with a 2997cc petrol engine. 265 of these vehicles were MOT tested in 2026, making it a less common model in the UK market. It ranks in the top 25% of all 2004 cars for reliability.

With an average of 111,202 miles at 22 years old, LEXUS IS300 owners tend to use this car less than the typical driver.

2004 LEXUS IS300 Fuel Costs

The 2997cc 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 2004 LEXUS IS300?

Total estimated annual running cost is £2,427 (£202/month), broken down as £1592 fuel, £430 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 80% pass rate. Keeping on top of servicing will help avoid surprises.

LEXUS IS300 Reliability Trend

Newer LEXUS IS300s show better MOT pass rates than older ones, with an average improvement of 7 percentage points.

Buying a Used 2004 LEXUS IS300

At 22 years old, the LEXUS IS300 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%.

Common Issues to Watch For

Based on the 2004 LEXUS IS300's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 22 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 111k 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.

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 2004 LEXUS IS300 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
LEXUS IS300(2004)	80%	£1592	£430	Grp 30-42	£2427
LAND ROVER FREELANDER(2006)	70%	£1592	£250	Grp 35-50	£2397-£30
MERCEDES E(2004)	78%	£1592	£250	Grp 35-50	£2397-£30
PORSCHE BOXSTER(2005)	86%	£1592	£250	Grp 35-50	£2247-£180
BMW X3(2006)	78%	£1592	£250	Grp 30-42	£2397-£30

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.