2004 Mercedes-Benz A-Class 1.4L Petrol · WD04 USG

A pattern of brake and tyre concerns, alongside a single significant airbag system fault, defines the roadworthiness profile of this 2004 Mercedes-Benz A-Class over its recorded testing history. The most recent MOT on 15 April 2026 was a pass with only a minor windscreen damage note, which is consistent with the relatively short advisory list seen since 2022. The earlier January 2022 test, however, produced the only failure on record, citing a supplementary restraint system warning lamp fault classified as Major, alongside dangerous defects for a nearside front tyre with structural separation and an offside front tyre below the 1.6mm tread requirement. Advisories in both 2022 and 2023 repeatedly noted corrosion on brake pipes and brake hose ferrules, suggesting localised surface oxidation on the braking hydraulic components rather than isolated wear. The post-failure sequence from 2023 through 2026 shows clean passes, which indicates that the major and dangerous items were rectified and the corrosion flagged in 2022 and 2023 has not been re-reported as an advisory, though this does not confirm the underlying extent of remedial treatment. Against a 22-year vehicle age, 88,537 recorded miles equates to an annual accumulation of roughly 4,024 miles, which is notably low and consistent with light personal use rather than high-mileage commuting. The MOT history covers eight tests between late 2019 and mid-2026, with no recorded tests between early 2021 and early 2022 aside from the closely spaced January 2022 entries, and a multi-year absence of records prior to December 2019, suggesting periods where the vehicle was either off the road, exempt, or untested. This usage profile points to a car that has spent considerable time stationary, which mechanically raises consideration of dried rubber seals, aged perishable components, and the natural degradation of brake hydraulic and fuel system elements even when not heavily driven. The absence of mileage gaps between 2023 and 2026 tests does, however, indicate consistent recent use sufficient to keep consumables functioning. For a prospective buyer, the brake-related advisories on pipes and hose ferrules warrant close inspection, as these areas are known corrosion trap points on older Mercedes vehicles and should be examined for pitting, rust bubbling through painted surfaces, and any evidence of previous repair sleeves or sealant applications. On a test drive, listen for any knocking or clonking from the front suspension over uneven roads, particularly from lower control arms, anti-roll bar drop links, and top mounts, as low-mileage age-related deterioration on the rubber and bush components is a common failure point on the A-Class W168 platform. Brake pedal feel should be checked for sponginess or excessive travel, which could indicate aged fluid or corrosion compromise within the hydraulic lines, and the car should be observed for any pulling to one side under steady braking that could suggest a binding caliper. The January 2022 airbag warning lamp fault is a particular area for diligence, as supplementary restraint system faults on vehicles of this age frequently involve seat belt pretensioner looms, under-seat mat sensors, or steering column clock spring connectors, and any subsequent illumination of the SRS warning during a pre-purchase inspection should prompt immediate diagnostic investigation. Tyre condition should be examined not only for legal tread depth but also for signs of age-hardened sidewalls, cracking, or uneven shoulder wear that could point to alignment or suspension geometry issues not flagged in the MOT record. Finally, given the multi-year gaps in testing and low annual mileage, a thorough check for oil leaks from the engine and transmission seals, coolant hoses showing signs of perishing, and the condition of the exhaust system for rust at mounting points and joints would be prudent, as these items are prone to age-related deterioration irrespective of low use.