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MAZDA BT-50 (2006)

Running costs, reliability data, and common problems from 109 real MOT tests.

Annual Cost

£2,195

£183/month

MOT Pass Rate

78%

Average

Road Tax

£395

Based on CC/year

Insurance

Grp 25-38

2499cc Diesel

Check Carefully

78% pass rate, £2195/year to run. Close to the national average.

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Diesel2499cc20 years old109 tests132k miles avg

Annual Running Costs

Fuel (Diesel, 2499cc)

~40 mpg

£1,245
Road Tax

Based on 2499cc

£395
MOT Test
£55
Predicted Repairs
£500
Total per year£2,195
Per month£183/mo
Per week£42/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

78% MOT pass rate(Average)
0%National avg: 82%100%

Average reliability. Expect some repairs as it ages. That's close to the national average of 82%.

At 20 years old, 78% of MAZDA BT-50s from 2006 passed their MOT first time in 2026. That's based on 109 tests across the UK. The average mileage at this age is 132,200 miles.

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How Does It Compare?

Rank among 2006 cars210th of 575(top 37%)
Rank among MAZDA models265th of 483(top 55%)
vs national average-4%(82% avg)
vs 2006 cars average+5%(73% avg)
vs MAZDA average-3%(81% avg)

Mileage Analysis

132,200

Average miles

vs

148,000

Expected for age

The average 2006 MAZDA BT-50 has 132,200 miles on the clock, which is in line with the expected 148,000 miles for a 20-year-old car, suggesting normal everyday use.

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Best Year to Buy?

The most reliable year is the 2007 model with a 82% MOT pass rate, while the 2008 model has the lowest at 74%. The 2006 sits between the two at 78%.

MAZDA BT-50 by Year

YearPass RateTestsAvg Mileage
200978%492111,454 mi
200874%416115,958 mi
200782%338120,292 mi
200678%109132,200 mi

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About the 2006 MAZDA BT-50

The 2006 MAZDA BT-50 is a large car with a 2499cc diesel engine. 109 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 2006, the average MOT pass rate is 73%, and this model beats that benchmark.

With an average of 132,200 miles at 20 years old, 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 £1,245 per year at current diesel prices of 148p per litre (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 £2,195 183/month), broken down as £1245 fuel, £395 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

Based on the 2006 MAZDA BT-50's fuel type, age, and engine size, these are the most likely problem areas to check.

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 annual running costs, insurance, and tax.

CarPass RateFuel/yrTax/yrInsuranceTotal/yr
MAZDA BT-50(2006)78%£1245£395Grp 25-38£2195
BMW 3 SERIES(2008)80%£1245£250Grp 30-42£1900-£295
HONDA CIVIC(2007)72%£1245£250Grp 25-38£2050-£145
VOLKSWAGEN TRANSPORTER(2007)75%£1245£250Grp 25-38£2050-£145
FORD TRANSIT(2008)69%£1245£250Grp 25-38£2250+£55

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.

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