Mazda BT-50 (2006)

Estimated running costs and MOT pass rates from 109 MOT tests in 2024.

Annual Cost

£2,641

£220/month

MOT Pass Rate

78%

Average

Road Tax

£410

Estimated/year

Est. Insurance

Grp 25-38

2499cc Diesel

Check Carefully

78% pass rate, £2,641/year to run. Close to the average across all models.

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Diesel2499cc20 years old109 tests132k miles avg

Annual Running Costs

Fuel (Diesel, 2499cc)

~40 mpg

£1,676

Road Tax

Estimated CO2 band

£410

MOT Test

£55

Predicted Repairs

£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

78% MOT pass rate(Average)

0%All-model avg: 82%100%

Average reliability. Expect some repairs as it ages. That's close to the average of 82% across all models in our data.

78% of MOT tests on Mazda BT-50s from 2006 ended in a pass in 2024, when they were about 18 years old. That's based on 109 tests across the UK, retests included. The average mileage recorded at those tests was 132,200 miles.

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How Does It Compare?

Rank among 2006 models200th of 554(top half)

Rank among Mazda models261st of 459(bottom half)

vs average of all models-4%(82% avg)

vs 2006 models average+5%(73% avg)

vs Mazda average-3%(81% avg)

Mileage Analysis

132,200

Average miles

133,200

Expected for age

The average 2006 Mazda BT-50 had 132,200 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 2007 model has the highest MOT pass rate at 82%, while the 2008 model has the lowest at 74%. The 2006 scores 78%. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.

Mazda BT-50 by Year

Year	Pass Rate	Tests	Avg Mileage
2009	78%	492	111,454 mi
2008	74%	416	115,958 mi
2007	82%	338	120,292 mi
2006	78%	109	132,200 mi

Similar Cars to Consider

BMW 3 Series

2008 · 2926cc Diesel

£2,491/year

80%

+2%

Honda Civic

2007 · 2204cc Diesel

£2,641/year

72%

-6%

Ford Mondeo

2007 · 1999cc Diesel

£2,227/year

71%

-7%

Land Rover Discovery

2006 · 2495cc Diesel

£2,641/year

78%

same

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About the 2006 Mazda BT-50

The 2006 Mazda BT-50 is a large car. Our records list a 2499cc diesel engine, though engines vary between versions. 109 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. Among all models from 2006, the average MOT pass rate is 73%, and this model beats that benchmark.

With an average of 132,200 miles recorded at its 2024 MOT tests, Mazda BT-50 owners drive about as much as the UK average.

2006 Mazda BT-50 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 2006 Mazda BT-50?

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 78% pass rate. Keeping on top of servicing will help avoid surprises.

Mazda BT-50 Reliability Trend

Older Mazda BT-50s tend to have better MOT pass rates than newer ones, with an average decline of 4 percentage points across model years.

Buying a Used 2006 Mazda BT-50

At 20 years old, the Mazda BT-50 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 2007 model has the highest pass rate at 82%.

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 132k 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 Mazda BT-50 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 BT-50(2006)	78%	£1,676	£410	Grp 25-38	£2,641
BMW 3 Series(2008)	80%	£1,676	£410	Grp 30-42	£2,491-£150
Honda Civic(2007)	72%	£1,676	£410	Grp 25-38	£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 2006 Mazda BT-50

Is the 2006 Mazda BT-50 reliable?

Average reliability. Expect some repairs as it ages. 78% of MOT tests on 2006 Mazda BT-50s ended in a pass, from 109 tests (DVSA MOT data for tests in 2024, retests included). That's 4 points below the average of 82% across all models in the same data.

How much does a 2006 Mazda BT-50 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 2006 Mazda BT-50?

78% of 109 MOT tests on the 2006 Mazda BT-50 ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 200th of 554 models first registered in 2006 (top half).

Which year Mazda BT-50 has the best MOT pass rate?

Of the years with at least 100 tests, the 2007 Mazda BT-50 has the highest MOT pass rate at 82% and the 2008 the lowest at 74%. Newer cars usually pass more often simply because they are younger and have done fewer miles.

What is the average mileage for a 2006 Mazda BT-50?

The average mileage recorded at MOT tests on the 2006 Mazda BT-50 is 132,200 miles, which is in line with the expected 133,200 miles for a 18-year-old car, suggesting normal everyday use.