Mazda B Series (2005)

Estimated running costs and MOT pass rates from 595 MOT tests in 2024.

Annual Cost

£2,641

£220/month

MOT Pass Rate

72%

Average

Road Tax

£410

Estimated/year

Est. Insurance

Grp 25-38

2499cc Diesel

Check Carefully

72% pass rate, £2,641/year to run. 10 points below average.

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Diesel2499cc21 years old595 tests111k miles avg

Annual Running Costs

Fuel (Diesel, 2499cc)

~40 mpg

£1,676

Road Tax

Estimated CO2 band

£410

MOT Test

£55

Predicted Repairs

Higher estimate due to low pass rate

£500

Total per year£2,641

Per month£220/mo

Per week£51/wk

Estimates based on 7,400 miles/year (UK average), diesel at 199.33p 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

72% MOT pass rate(Average)

0%All-model avg: 82%100%

Average reliability. Expect some repairs as it ages. That's 10 points below the average of 82% across all models in our data. It falls below the Mazda brand average of 81%.

72% of MOT tests on Mazda B Seriess from 2005 ended in a pass in 2024, when they were about 19 years old. That's based on 595 tests across the UK, retests included. The average mileage recorded at those tests was 110,924 miles.

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How Does It Compare?

Rank among 2005 models303rd of 504(bottom half)

Rank among Mazda models350th of 459(bottom 24%)

vs average of all models-10%(82% avg)

vs 2005 models average+0%(72% avg)

vs Mazda average-9%(81% avg)

Mileage Analysis

110,924

Average miles

140,600

Expected for age

The average 2005 Mazda B Series had 110,924 miles on the clock at its 2024 MOT, which is below the expected 140,600 miles for a 19-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 76%, while the 2004 model has the lowest at 70%. The 2005 scores 72%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Mazda B Series by Year

Year	Pass Rate	Tests	Avg Mileage
2006	73%	244	115,029 mi
2005	72%	595	110,924 mi
2004	70%	304	117,876 mi
2003	72%	399	122,590 mi
2002	72%	421	125,247 mi
2001	76%	192	127,878 mi
2000	71%	286	133,062 mi
1999	71%	279	126,167 mi
1998	73%	100	108,386 mi
1995	78%	32	104,863 mi

Similar Cars to Consider

Honda Civic

2007 · 2204cc Diesel

£2,641/year

72%

same

BMW 3 Series

2005 · 2926cc Diesel

£2,641/year

78%

+6%

Ford Mondeo

2007 · 1999cc Diesel

£2,227/year

71%

-1%

Land Rover Discovery

2006 · 2495cc Diesel

£2,641/year

78%

+6%

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About the 2005 Mazda B Series

The 2005 Mazda B Series is a large car. Our records list a 2499cc diesel engine, though engines vary between versions. 595 MOT tests were recorded on this model in 2024, making it a less common model in the UK market. Among all models from 2005, the average MOT pass rate is 72%, and this model matches that benchmark.

With an average of 110,924 miles recorded at its 2024 MOT tests, Mazda B Series owners tend to use this car less than the typical driver.

2005 Mazda B Series Fuel Costs

The 2499cc diesel engine offers a reasonable balance between performance and economy. Expect around 40 mpg in mixed driving, which works out to roughly £1,676 per year with diesel at 199.33p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2005 Mazda B Series?

Total estimated annual running cost is £2,641 (£220/month), broken down as £1,676 fuel, £410 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 72% pass rate. Keeping on top of servicing will help avoid surprises.

Mazda B Series Reliability Trend

The Mazda B Series has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.

Buying a Used 2005 Mazda B Series

At 21 years old, the Mazda B Series 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 76%.

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.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Watch out

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

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 2005 Mazda B Series 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
Mazda B Series(2005)	72%	£1,676	£410	Grp 25-38	£2,641
Honda Civic(2007)	72%	£1,676	£410	Grp 25-38	£2,641same
BMW 3 Series(2005)	78%	£1,676	£410	Grp 30-42	£2,641same
Ford Mondeo(2007)	71%	£1,397	£275	Grp 18-32	£2,227-£414
Land Rover Discovery(2006)	78%	£1,676	£410	Grp 25-38	£2,641same

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 2005 Mazda B Series

Is the 2005 Mazda B Series reliable?

Average reliability. Expect some repairs as it ages. 72% of MOT tests on 2005 Mazda B Seriess ended in a pass, from 595 tests (DVSA MOT data for tests in 2024, retests included). That's 10 points below the average of 82% across all models in the same data.

How much does a 2005 Mazda B Series cost to run?

Our estimate is £2,641 a year (£220 a month): £1,676 fuel, £410 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 2005 Mazda B Series?

72% of 595 MOT tests on the 2005 Mazda B Series ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 303rd of 504 models first registered in 2005 (bottom half).

Which year Mazda B Series has the best MOT pass rate?

Of the years with at least 100 tests, the 2001 Mazda B Series has the highest MOT pass rate at 76% and the 2004 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 2005 Mazda B Series?

The average mileage recorded at MOT tests on the 2005 Mazda B Series is 110,924 miles, which is below the expected 140,600 miles for a 19-year-old car. This suggests lighter use than average, which generally means less wear on major components.