How much does a 2004 LEXUS GS300 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 GS300?

The 2004 LEXUS GS300 has a 82% MOT pass rate based on 118 tests in 2026. This ranks 102 out of 491 cars from 2004.

Which year LEXUS GS300 is most reliable?

The 2009 LEXUS GS300 has the highest MOT pass rate at 88%. The least reliable year is 1996 at 72%.

LEXUS GS300 (2004)

Q: Is the 2004 LEXUS GS300 reliable?

Good reliability. Occasional issues but generally solid. 82% of LEXUS GS300s from 2004 passed their MOT first time in 2026, based on 118 tests. That's 0 points above the national average of 82%.

Q: What is the average mileage for a 2004 LEXUS GS300?

The average mileage for a 2004 LEXUS GS300 is 123,462 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 118 real MOT tests.

Annual Cost

£2,427

£202/month

MOT Pass Rate

82%

Good

Road Tax

£430

Based on CC/year

Insurance

Grp 30-42

2997cc Petrol

Solid Option

82% pass rate, £2427/year to run. Close to the national average.

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Petrol2997cc22 years old118 tests123k 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

82% 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, 82% of LEXUS GS300s from 2004 passed their MOT first time in 2026. That's based on 118 tests across the UK. The average mileage at this age is 123,462 miles.

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How Does It Compare?

Rank among 2004 cars102th of 491(top 21%)

Rank among LEXUS models222th of 301(top 74%)

vs national average+0%(82% avg)

vs 2004 cars average+10%(72% avg)

vs LEXUS average-5%(87% avg)

Mileage Analysis

123,462

Average miles

162,800

Expected for age

The average 2004 LEXUS GS300 has 123,462 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 2009 model with a 88% MOT pass rate, while the 1996 model has the lowest at 72%. The 2004 sits between the two at 82%.

LEXUS GS300 by Year

Year	Pass Rate	Tests	Avg Mileage
2009	88%	307	82,593 mi
2008	84%	290	101,726 mi
2007	86%	537	113,924 mi
2006	82%	850	112,615 mi
2005	82%	1,380	113,983 mi
2004	82%	118	123,462 mi
2003	80%	235	120,543 mi
2002	78%	234	126,236 mi
2001	86%	205	116,012 mi
2000	82%	158	127,322 mi
1999	82%	343	120,738 mi
1998	86%	426	126,321 mi
1997	87%	175	130,327 mi
1996	72%	142	119,245 mi
1995	96%	45	134,888 mi
1994	86%	42	103,430 mi

Similar Cars to Consider

LAND ROVER FREELANDER

2006 · 3192cc Petrol

£2,397/year

70%

-12%

MERCEDES E

2004 · 3199cc Petrol

£2,397/year

78%

-4%

PORSCHE BOXSTER

2005 · 3197cc Petrol

£2,247/year

86%

+4%

BMW X3

2006 · 2996cc Petrol

£2,397/year

78%

-4%

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About the 2004 LEXUS GS300

The 2004 LEXUS GS300 is a premium performance with a 2997cc petrol engine. 118 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 21% of all 2004 cars for reliability.

With an average of 123,462 miles at 22 years old, LEXUS GS300 owners tend to use this car less than the typical driver.

2004 LEXUS GS300 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 GS300?

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 82% pass rate. Keeping on top of servicing will help avoid surprises.

LEXUS GS300 Reliability Trend

The LEXUS GS300 has maintained consistent MOT pass rates across model years, varying by only 2 percentage points.

Buying a Used 2004 LEXUS GS300

At 22 years old, the LEXUS GS300 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 2009 model has the highest pass rate at 88%.

Common Issues to Watch For

Based on the 2004 LEXUS GS300'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 123k 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 2004 LEXUS GS300 stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
LEXUS GS300(2004)	82%	£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.