Vauxhall Omega (2004)

Estimated running costs and MOT pass rates from 31 MOT tests in 2024.

Annual Cost

£2,808

£234/month

MOT Pass Rate

81%

Good

Road Tax

£445

Estimated/year

Est. Insurance

Grp 25-38

2198cc Petrol

Solid Option

81% pass rate, £2,808/year to run. Close to the average across all models.

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Petrol2198cc22 years old31 tests90k miles avg

Annual Running Costs

Fuel (Petrol, 2198cc)

~30 mpg

£1,958

Road Tax

Estimated CO2 band

£445

MOT Test

£55

Predicted Repairs

£350

Total per year£2,808

Per month£234/mo

Per week£54/wk

Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included.

Reliability Verdict

81% MOT pass rate(Good)

0%All-model avg: 82%100%

Good reliability. Occasional issues but generally solid. That's close to the average of 82% across all models in our data.

81% of MOT tests on Vauxhall Omegas from 2004 ended in a pass in 2024, when they were about 20 years old. That's based on 31 tests across the UK, retests included. The average mileage recorded at those tests was 89,855 miles.

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How Does It Compare?

Rank among 2004 models106th of 470(top 23%)

Rank among Vauxhall models576th of 870(bottom half)

vs average of all models-1%(82% avg)

vs 2004 models average+9%(72% avg)

vs Vauxhall average-3%(84% avg)

Mileage Analysis

89,855

Average miles

148,000

Expected for age

The average 2004 Vauxhall Omega had 89,855 miles on the clock at its 2024 MOT, which is below the expected 148,000 miles for a 20-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?

Of the years with at least 100 tests, the 2001 model has the highest MOT pass rate at 79%, while the 2002 model has the lowest at 70%. The 2004 scores 81%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Vauxhall Omega by Year

Year	Pass Rate	Tests	Avg Mileage
2004	81%	31	89,855 mi
2003	74%	589	102,174 mi
2002	70%	542	105,559 mi
2001	79%	387	102,349 mi
2000	72%	204	107,640 mi
1999	79%	164	93,732 mi
1998	75%	106	87,253 mi
1997	86%	69	88,747 mi
1996	74%	91	88,398 mi
1995	52%	54	127,436 mi

Similar Cars to Consider

BMW 3 Series

2006 · 1796cc Petrol

£2,361/year

80%

-1%

Renault Clio

2006 · 1998cc Petrol

£2,711/year

68%

-13%

Audi A4

2006 · 1781cc Petrol

£2,511/year

76%

-5%

Mercedes C

2006 · 1796cc Petrol

£2,511/year

74%

-7%

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About the 2004 Vauxhall Omega

The 2004 Vauxhall Omega is a family car. Our records list a 2198cc petrol engine, though engines vary between versions. 31 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It ranks in the top 23% of all 2004 models for MOT pass rate.

With an average of 89,855 miles recorded at its 2024 MOT tests, Vauxhall Omega owners tend to use this car less than the typical driver.

2004 Vauxhall Omega Fuel Costs

The 2198cc petrol engine offers a reasonable balance between performance and economy. Expect around 30 mpg in mixed driving, which works out to roughly £1,958 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).

What does it cost to own a 2004 Vauxhall Omega?

Total estimated annual running cost is £2,808 (£234/month), broken down as £1,958 fuel, £445 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 81% pass rate. Keeping on top of servicing will help avoid surprises.

Vauxhall Omega Reliability Trend

The Vauxhall Omega has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.

Buying a Used 2004 Vauxhall Omega

At 22 years old, the Vauxhall Omega 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 2001 model has the highest pass rate at 79%. Note: with only 31 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.

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

Medium risk

With an average of 90k 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 Vauxhall Omega 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
Vauxhall Omega(2004)	81%	£1,958	£445	Grp 25-38	£2,808
BMW 3 Series(2006)	80%	£1,631	£325	Grp 18-32	£2,361-£447
Renault Clio(2006)	68%	£1,631	£325	Grp 18-32	£2,711-£97
Audi A4(2006)	76%	£1,631	£325	Grp 18-32	£2,511-£297
Mercedes C(2006)	74%	£1,631	£325	Grp 18-32	£2,511-£297

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 2004 Vauxhall Omega

Is the 2004 Vauxhall Omega reliable?

Good reliability. Occasional issues but generally solid. 81% of MOT tests on 2004 Vauxhall Omegas ended in a pass, from 31 tests (DVSA MOT data for tests in 2024, retests included). That's 1 point below the average of 82% across all models in the same data.

How much does a 2004 Vauxhall Omega cost to run?

Our estimate is £2,808 a year (£234 a month): £1,958 fuel, £445 road tax, £55 MOT and £350 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2004 Vauxhall Omega?

81% of 31 MOT tests on the 2004 Vauxhall Omega ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 106th of 470 models first registered in 2004 (top 23%).

Which year Vauxhall Omega has the best MOT pass rate?

Of the years with at least 100 tests, the 2001 Vauxhall Omega has the highest MOT pass rate at 79% and the 2002 the lowest at 70%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2004 Vauxhall Omega?

The average mileage recorded at MOT tests on the 2004 Vauxhall Omega is 89,855 miles, which is below the expected 148,000 miles for a 20-year-old car. This suggests lighter use than average, which generally means less wear on major components.