2007 Mazda RX-8 2.6L Petrol · WU07 XFN

The most recent DVSA examination dated 2026-05-01 resulted in a fail, with four major defects recorded: an inoperative or malfunctioning engine malfunction indicator lamp, an ABS warning lamp indicating a fault, a supplementary restraint system warning lamp showing a fault, and an inoperative registration plate lamp. A minor defect was also noted for a severely deteriorated offside front anti-roll bar linkage ball joint dust cover. Looking at the broader history, the vehicle had previously passed on 2025-05-31 alongside a separate failure on the same date for the registration plate lamp issue, and prior to that passed cleanly in 2021. The trend is therefore clearly deteriorating rather than stable, with the 2026 test introducing multiple major electronic and emissions-related defects which were absent from earlier examinations. The recurrence of the registration plate lamp failure across consecutive tests also suggests that minor electrical faults are not being addressed promptly between tests, which does not inspire confidence in the rigour of pre-test preparation. The recorded mileage of 84,450 against a 19-year vehicle age equates to an average of roughly 4,445 miles per year, which is notably low for a car of this vintage and particularly for a rotary-engined Mazda RX-8, a model that is well known to suffer from apex seal wear and combustion chamber carbon deposits when used predominantly for short journeys or left standing for extended periods. The MOT record contains gaps between tests that may suggest periods of limited use or off-road storage, and the low annual accumulation is more consistent with occasional leisure use than regular daily driving. Mechanically, this usage profile raises concerns about cold-start wear, fuel dilution in the engine oil, degraded fuel system components, and the condition of coolant and braking fluids which deteriorate with calendar age irrespective of mileage. Standing periods also commonly lead to brake disc corrosion, seized or binding calipers, perished rubber components, and 12V battery degradation. For a prospective buyer, the major defects from the 2026 test warrant specific investigation before purchase. The engine MIL indication must be diagnosed using manufacturer-level diagnostic equipment to determine whether it relates to emissions, misfire, lambda sensor function, or catalytic converter efficiency, all of which carry meaningful rectification costs. The ABS warning lamp fault requires a scan of the ABS control module and wheel speed sensors, and the supplementary restraint system warning lamp means the airbags and seatbelt pretensioners must be confirmed as operational, as this directly affects occupant safety and would normally require diagnostic interrogation of the SRS control unit and crash data. The deteriorated anti-roll bar ball joint dust cover, if left unattended, will allow water and grit ingress leading to accelerated joint wear, manifesting on a test drive as clonking noises over bumps or during direction changes. Any buyer should also inspect the rear tyres closely for uneven shoulder wear consistent with the advisory notes from 2022 and 2025, and listen for brake shudder or vibration which may indicate the pitted rear discs flagged in 2019 have progressed to a point requiring replacement. Beyond the documented defects, a physical inspection should pay particular attention to the rotary engine itself, which requires a compression test across both rotor faces to confirm apex seal integrity, ideally when fully warm. Check the underbonnet and sump area for the oil leak advisories recorded in 2019 and 2025, noting that the leak has persisted across multiple tests and may now be more substantial. Given the low annual mileage, the buyer should verify the age of the 12V battery, the condition of the brake fluid and coolant in line with calendar-based servicing schedules irrespective of recorded mileage, and inspect the underside of the vehicle for corrosion given its age, particularly around suspension mounting points, subframes, and wheel arches. Tyres should be examined for sidewall cracking and perishing from age even if tread depth appears adequate, and the fuel system should be considered for stale fuel or injector deposits if the vehicle has stood for prolonged periods. Finally, a thorough road test should include observation of the engine at idle for rough running or uneven revs characteristic of rotary engine deterioration, and confirmation that the cooling system maintains proper operating temperature, as overheating is a known concern for this model.