2004 Mazda MX-5 1.8L Petrol · BN54 TNX
2004 Mazda MX-5 (1.8L, petrol). First registered 18 Sept 2004. Recorded mileage 56,903 miles. MOT expired on 07 Nov 2026.
- Make & Model
- MAZDA MX-5
- Year / Origin
- 2004 · Birmingham
- Safety Recall
- Unknown
- MOT Status
- Expired on 07 Nov 2026
- Road Tax
- —
- Recorded Mileage
- 56,903 mi
- ULEZ Compliance
- Likely ULEZ Compliant (Early Euro 4)
- Fuel & Engine
- Petrol · 1.8L
- Reliability Guide
- Common Faults
Thinking of buying this vehicle? Free MOT and tax checks do not cover legal ownership. If outstanding finance exists, finance companies have legal right to repossess without compensation.
BN54 TNX Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 29/10/2025
- 56,903 miles recorded at latest MOT
- 2 historical MOT failures
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
BN54 TNX MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
5 MOT tests are recorded for this 2004 Mazda Mx-5 (BN54 TNX) between November 2023 and October 2025.
The record contains 3 passes and 2 failures.
The most recent test on 29 October 2025 was a pass, although the earlier record includes 2 failures that buyers may want to investigate.
BN54 TNX Mileage History
- 08/11/202353,430 mi
- 25/10/202455,469 mi+2,039 mi
- 31/10/202455,484 mi+15 mi
- 27/10/202556,903 mi+1,419 mi
- 29/10/202556,903 mi
Average of roughly 1,759 miles per year across 5 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Known faults for Mazda Mazda MX-5 (NB)
Our database tracks 3 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Below Average
This rating reflects historical MOT pass rates and recurring advisory wear patterns from official DVSA test logs. Note that roadworthiness does not verify outstanding finance, insurance write-offs, or stolen records.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
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MAZDA MX-5 Model Intelligence & Reliability
Verified MOT failure trends, buying advice, and technical directory specifications.
Owner-reported defects, recurring MOT failure points, and estimated repair costs.
Browse production generations, registration statistics, and trim variants.
Historical MOT pass rates and DVLA records for 2004 model year cars.
- Front Chassis Rail CorrosionSerious
NB cars can rust badly inside the front chassis rails, sometimes while the outer structure still looks respectable from above.
- Rear Sill and Arch RustSerious
Like the NA, the NB traps moisture around the rear sill sections and arch returns, so rot often starts where it is easy to hide with cosmetic repairs.
- Blocked Hood Drains and Cabin DampModerate
When the soft-top drains block, water can back up into the cabin and accelerate rust in the sills and floor area.
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