Vauxhall Signum (2006)

Estimated running costs and MOT pass rates from 832 MOT tests in 2024.

Annual Cost

£2,958

£247/month

MOT Pass Rate

74%

Average

Road Tax

£445

Estimated/year

Est. Insurance

Grp 25-38

2198cc Petrol

Check Carefully

74% pass rate, £2,958/year to run. 8 points below average.

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Petrol2198cc20 years old832 tests124k miles avg

Annual Running Costs

Fuel (Petrol, 2198cc)

~30 mpg

£1,958

Road Tax

Estimated CO2 band

£445

MOT Test

£55

Predicted Repairs

Higher estimate due to low pass rate

£500

Total per year£2,958

Per month£247/mo

Per week£57/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

74% MOT pass rate(Average)

0%All-model avg: 82%100%

Average reliability. Expect some repairs as it ages. That's 8 points below the average of 82% across all models in our data. It falls below the Vauxhall brand average of 84%.

74% of MOT tests on Vauxhall Signums from 2006 ended in a pass in 2024, when they were about 18 years old. That's based on 832 tests across the UK, retests included. The average mileage recorded at those tests was 124,339 miles.

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How Does It Compare?

Rank among 2006 models276th of 554(top half)

Rank among Vauxhall models687th of 870(bottom 22%)

vs average of all models-8%(82% avg)

vs 2006 models average+1%(73% avg)

vs Vauxhall average-10%(84% avg)

Mileage Analysis

124,339

Average miles

133,200

Expected for age

The average 2006 Vauxhall Signum had 124,339 miles on the clock at its 2024 MOT, which is in line with the expected 133,200 miles for a 18-year-old car, suggesting normal everyday use.

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Best Year to Buy?

Of the years with at least 100 tests, the 2003 model has the highest MOT pass rate at 77%, while the 2004 model has the lowest at 67%. The 2006 scores 74%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Vauxhall Signum by Year

Year	Pass Rate	Tests	Avg Mileage
2008	63%	63	130,218 mi
2007	71%	538	128,236 mi
2006	74%	832	124,339 mi
2005	73%	382	124,763 mi
2004	67%	307	121,492 mi
2003	77%	111	111,342 mi

Similar Cars to Consider

BMW 3 Series

2007 · 1796cc Petrol

£2,361/year

80%

+6%

Renault Clio

2007 · 1998cc Petrol

£2,711/year

68%

-6%

Audi A3

2008 · 1984cc Petrol

£2,511/year

76%

+2%

Toyota Yaris

2007 · 1798cc Petrol

£2,511/year

75%

+1%

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About the 2006 Vauxhall Signum

The 2006 Vauxhall Signum is a family car. Our records list a 2198cc petrol engine, though engines vary between versions. 832 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. Among all models from 2006, the average MOT pass rate is 73%, and this model beats that benchmark.

With an average of 124,339 miles recorded at its 2024 MOT tests, Vauxhall Signum owners drive about as much as the UK average.

2006 Vauxhall Signum 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 2006 Vauxhall Signum?

Total estimated annual running cost is £2,958 (£247/month), broken down as £1,958 fuel, £445 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 74% pass rate. Keeping on top of servicing will help avoid surprises.

Vauxhall Signum Reliability Trend

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

Buying a Used 2006 Vauxhall Signum

At 20 years old, the Vauxhall Signum 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 2003 model has the highest pass rate at 77%.

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 20 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 124k 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 2006 Vauxhall Signum 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 Signum(2006)	74%	£1,958	£445	Grp 25-38	£2,958
BMW 3 Series(2007)	80%	£1,631	£325	Grp 18-32	£2,361-£597
Renault Clio(2007)	68%	£1,631	£325	Grp 18-32	£2,711-£247
Audi A3(2008)	76%	£1,631	£325	Grp 18-32	£2,511-£447
Toyota Yaris(2007)	75%	£1,631	£325	Grp 18-32	£2,511-£447

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 2006 Vauxhall Signum

Is the 2006 Vauxhall Signum reliable?

Average reliability. Expect some repairs as it ages. 74% of MOT tests on 2006 Vauxhall Signums ended in a pass, from 832 tests (DVSA MOT data for tests in 2024, retests included). That's 8 points below the average of 82% across all models in the same data.

How much does a 2006 Vauxhall Signum cost to run?

Our estimate is £2,958 a year (£247 a month): £1,958 fuel, £445 road tax, £55 MOT and £500 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2006 Vauxhall Signum?

74% of 832 MOT tests on the 2006 Vauxhall Signum ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 276th of 554 models first registered in 2006 (top half).

Which year Vauxhall Signum has the best MOT pass rate?

Of the years with at least 100 tests, the 2003 Vauxhall Signum has the highest MOT pass rate at 77% and the 2004 the lowest at 67%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2006 Vauxhall Signum?

The average mileage recorded at MOT tests on the 2006 Vauxhall Signum is 124,339 miles, which is in line with the expected 133,200 miles for a 18-year-old car, suggesting normal everyday use.