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VAUXHALL OMEGA (1998)

Running costs, reliability data, and common problems from 106 real MOT tests.

Annual Cost

£2,577

£215/month

MOT Pass Rate

75%

Average

Road Tax

£430

Based on CC/year

Insurance

Grp 25-38

2498cc Petrol

Check Carefully

75% pass rate, £2577/year to run. 7 points below average.

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Petrol2498cc28 years old106 tests87k miles avg

Annual Running Costs

Fuel (Petrol, 2498cc)

~30 mpg

£1,592
Road Tax

Based on 2498cc

£430
MOT Test
£55
Predicted Repairs
£500
Total per year£2,577
Per month£215/mo
Per week£50/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

75% MOT pass rate(Average)
0%National avg: 82%100%

Average reliability. Expect some repairs as it ages. That's 7 points below the national average of 82%. It falls below the VAUXHALL brand average of 84%.

At 28 years old, 75% of VAUXHALL OMEGAs from 1998 passed their MOT first time in 2026. That's based on 106 tests across the UK. The average mileage at this age is 87,253 miles.

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How Does It Compare?

Rank among 1998 cars167th of 340(top 49%)
Rank among VAUXHALL models676th of 882(top 77%)
vs national average-7%(82% avg)
vs 1998 cars average+0%(75% avg)
vs VAUXHALL average-9%(84% avg)

Mileage Analysis

87,253

Average miles

vs

207,200

Expected for age

The average 1998 VAUXHALL OMEGA has 87,253 miles on the clock, which is significantly below the expected 207,200 miles for a 28-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

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Best Year to Buy?

The most reliable year is the 1997 model with a 86% MOT pass rate, while the 1995 model has the lowest at 52%. The 1998 sits between the two at 75%.

VAUXHALL OMEGA by Year

YearPass RateTestsAvg Mileage
200481%3189,855 mi
200374%589102,174 mi
200270%542105,559 mi
200179%387102,349 mi
200072%204107,640 mi
199979%16493,732 mi
199875%10687,253 mi
199786%6988,747 mi
199674%9188,398 mi
199552%54127,436 mi

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About the 1998 VAUXHALL OMEGA

The 1998 VAUXHALL OMEGA is a large car with a 2498cc petrol engine. 106 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 1998, the average MOT pass rate is 75%, and this model falls short of that benchmark.

With an average of 87,253 miles at 28 years old, VAUXHALL OMEGA owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.

1998 VAUXHALL OMEGA Fuel Costs

The 2498cc petrol engine offers a reasonable balance between performance and economy. 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 1998 VAUXHALL OMEGA?

Total estimated annual running cost is £2,577 215/month), broken down as £1592 fuel, £430 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 75% pass rate. Keeping on top of servicing will help avoid surprises.

VAUXHALL OMEGA Reliability Trend

Newer VAUXHALL OMEGAs show better MOT pass rates than older ones, with an average improvement of 3 percentage points.

Buying a Used 1998 VAUXHALL OMEGA

At 28 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 1997 model has the highest pass rate at 86%.

Common Issues to Watch For

Based on the 1998 VAUXHALL OMEGA's fuel type, age, and engine size, these are the most likely problem areas to check.

Timing Chain / Belt

Watch out

At 28 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 87k 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 1998 VAUXHALL OMEGA stacks up against similar cars for annual running costs, insurance, and tax.

CarPass RateFuel/yrTax/yrInsuranceTotal/yr
VAUXHALL OMEGA(1998)75%£1592£430Grp 25-38£2577
VOLKSWAGEN TRANSPORTER(1996)67%£1592£250Grp 25-38£2597+£20
BMW Z3(1998)77%£1592£250Grp 30-42£2397-£180
BMW 3 SERIES(1999)78%£1592£250Grp 25-38£2397-£180
MERCEDES SLK(1999)79%£1592£250Grp 25-38£2397-£180

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.

Related Vauxhall Models

Explore other Vauxhall cars or similar models in the same category.

Related Guides

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