2002 Mazda Demio 1.5L Petrol · WN02 SDZ

The most recent DVSA examination on 22 July 2025 resulted in a pass, but the test carries a recurring cluster of advisories and a minor defect that warrant careful attention. The near-side front brake pipe has been flagged for corrosion across the 2020, 2022, 2023, 2024 and 2025 tests, indicating a long-standing issue rather than a one-off observation, and in 2024 an offside rear brake pipe was also noted in similar condition. A near-side rear tyre advisory, offside rear tyre damage or perishing advisory and a minor headlamp lens defect were recorded on the latest pass, while the previous 2024 test highlighted a slightly noisy offside rear wheel bearing and corrosion within prescribed suspension component mounting areas. The overall maintenance trend is broadly stable from a pass/fail perspective, however the pattern of brake pipe corrosion appearing year after year, alongside the accumulating suspension and underbody corrosion advisories since 2019, points to a vehicle whose structural and hydraulic lines are gradually deteriorating with age rather than a car undergoing active remedial work. The recorded mileage of 130,444 miles on a 2002 Mazda Demio equates to roughly 5,435 miles annually, which is substantially below average and indicative of a car that has either seen very light use or, more probably, has experienced long periods of standing un-driven. Low annual mileage is not necessarily protective against wear; in fact it tends to accelerate certain age-related degradation pathways such as brake disc corrosion from lack of use, tyre sidewall perishing from prolonged standing, 12V battery failure, brake caliper seizure due to seized pistons, and the drying out and cracking of rubber components including drive shaft boots and suspension bushes. The MOT records are broadly consistent with this profile, showing MOTs clustered in the May to July period each year with relatively short intervals between recorded mileages, and the absence of any high-mileage accumulation phases suggests this Demio has spent considerable time garaged or stationary. Given the persistent brake pipe corrosion advisories, the prospective buyer should make a thorough physical inspection of the brake hydraulic system a priority. On a test drive, listen for any scraping or grinding from the front discs, which would suggest corrosion lipping on the discs themselves from standing, and check for pulling to one side under braking, which could indicate a seized caliper or a partially restricted brake pipe. Inspect the brake pipes visually for swelling, blistering or active weeping of brake fluid, and note that pipes coated in underseal or grease should still be examined closely because corrosion frequently develops beneath such coverings. The offside rear wheel bearing noted as slightly noisy in 2024 is also worth monitoring on a road test; a low-frequency drone that changes with cornering loadings would suggest progressive bearing wear. Under the vehicle, the prescribed area corrosion advisories on the rear suspension should be checked carefully, paying particular attention to the offside rear mounting for any perforation, flaking or weakening of the metal, as corrosion in these structural areas cannot be repaired indefinitely and may eventually compromise test outcome or safety. Beyond the recorded advisories, the age and standing nature of this vehicle demands a number of practical, calendar-based inspections that will not appear on any MOT but are essential to safe ongoing operation. All four tyres should be examined for age-related sidewall cracking or perishing, particularly given the offside rear tyre damage noted in 2025, and replacements should be considered regardless of tread depth if the rubber shows significant ozone cracking. The 12V battery is likely beyond its typical service life and should be load-tested, while all fluid services including engine coolant, brake fluid (which is hygroscopic and degrades with calendar age irrespective of mileage), engine oil, and any automatic transmission fluid if applicable, should be verified by way of service book stamps or recent receipts. Check that the headlamp lenses, flagged as yellowing on both sides, still provide adequate light output for night driving, and confirm that the drive shaft CV boot defect noted as a minor in 2020 has been addressed, as a split boot will rapidly destroy the joint through grease loss and contamination. Finally, ask to see evidence of recent servicing and verify the V5C service history against the garage stamps, and consider an oil analysis or compression test given the vehicle's age to establish baseline engine health before purchase.