2015 Mercedes-Benz A-Class 1.5L Diesel · KE15 ABY

The most recent DVSA examination on 8 December 2025 resulted in a PASS, although the tester recorded two advisories concerning both front tyres being worn close to the legal limit and showing edge wear, alongside a minor item flagging severe deterioration of the offside front lower anti-roll bar linkage ball joint dust cover. Looking at the recent history, the overall maintenance trend is one of progressive deterioration rather than stable condition. The December 2024 test passed but carried no fewer than five advisories covering pitted and scored brake discs on all four corners plus thinning rear brake pads, and the immediately preceding test on 6 December 2024 failed outright on a dangerous tyre tread depth issue at the nearside rear. Earlier still, the October 2023 test recorded four major failures relating to the supplementary restraint system warning lamp, inoperative front headlamps on both dipped and main beam, a front passenger door that could not be opened from inside, and an illuminated engine management indicator. The combination of repeated braking component advisories, suspension and tyre wear items, and a cluster of major electrical and safety system defects at the previous test suggests the vehicle has not been consistently well maintained and warrants close physical inspection before purchase. Recorded mileage stands at 103,227 miles over approximately eleven years, equating to an annual average of around 9,384 miles per year, which is broadly typical for a car of this age. There are no significant gaps or sudden jumps in the MOT record that would indicate long periods of standing or unusually rapid accumulation, so the wear patterns observed are consistent with steady regular use. At this mileage and age, attention should naturally turn to higher-mileage service items such as timing chain or cam chain stretch on the petrol variants, automatic or dual-clutch transmission fluid and filter changes, and turbocharger wear on diesel models, all of which are mechanical realities for any A-Class approaching six-figure mileage. The reasonably consistent annual usage does at least reduce the likelihood of calendar-related degradation issues such as severe standing corrosion, dried brake hydraulic fluid, or perished coolant hoses, although those should still be verified given the vehicle's age. The recurring brake-related advisories across both 2024 tests indicate a clear pattern of disc wear that has progressed to pitting and scoring on all four corners, with rear pads noted as wearing thin at the most recent passing test. Brake discs that are pitted and scored can produce noticeable brake shudder under heavy braking, reduced efficiency in wet conditions, and increased stopping distances, and once corrosion penetrates beyond the working surface the discs must be replaced rather than machined. Prospective buyers should budget for a full set of discs and pads and should test the vehicle from a moderate speed with a firm brake application to feel for vibration through the pedal or steering. The tyre advisories from the 2025 test, combined with the dangerous tread depth failure just over a year earlier, point to uneven or accelerated front axle wear, likely linked to the deteriorated anti-roll bar linkage dust cover noted at the same test. Worn anti-roll bar drop links or ball joints commonly produce a clonking or rattling noise over speed humps, uneven bumps, or during sudden direction changes, and the perished dust cover will allow moisture and grit to enter the joint, accelerating wear. Beyond the documented MOT items, the 2023 major failures relating to the airbag warning lamp, headlamp function, interior door release, and engine management indicator should be investigated to confirm they have been properly resolved rather than simply cleared. A scan of all vehicle control modules using a professional diagnostic tool is strongly recommended to verify there are no stored or pending fault codes, particularly within the supplementary restraint system, body control module, and engine management systems. Given the age and mileage, a thorough physical inspection should also include a check of the rear coil springs for the corrosion flagged in 2023, as corroded springs can fatigue and fracture, and an examination of the underbody and wheel arch liners for any advancing corrosion that may have developed since. Brake fluid should be confirmed as recently changed due to its hygroscopic nature, the 12V battery tested for adequate cranking performance and state of charge, and the coolant inspected for condition and concentration. A compression or leak-down test on the engine would be prudent to assess internal wear, and any automatic transmission should be checked for smooth shifts and clean fluid at the correct level, as these remain common failure points on a Mercedes-Benz A-Class of this vintage and mileage.