2012 Mercedes-Benz B-Class 1.8L Diesel · LS62 LKC

A pattern of front-end wear is emerging on this Mercedes-Benz B-Class, with steering and braking components appearing repeatedly across the MOT record. The most recent test on 6 January 2026 passed, but it carried advisories for worn front and rear brake discs on both sides and inner front tyres nearing the legal limit on both edges, indicating the braking system and front axle consumables are due for attention. Looking further back, the 16 November 2022 test resulted in a failure, though only on a straightforward rear fog lamp issue, accompanied by advisories for slight play in both front track rod end ball joints and edge-worn nearside and offside front tyres. The fact that those same track rod ends were not flagged again in the 2023 and 2024 passes suggests they were likely renewed, yet the recurrence of brake disc wear and tyre edge wear in 2026 points to chronic load or geometry characteristics at the front axle that continue to consume parts. Against an age of approximately fourteen years, the recorded 123,967 miles equates to around 8,855 miles per year, which is broadly typical for a vehicle of this vintage and indicates regular rather than occasional use. There are no prolonged gaps in the MOT history that would suggest the car was laid up for any extended period, with annual tests consistently recorded from 2022 through to the 2026 pass. This continuity of use is mechanically favourable, as it generally prevents the issues associated with long-term standing such as seized brake calipers, perished rubber seals, and degraded drivetrain fluids. The mileage progression between tests appears steady and proportionate, with no sudden jumps that might indicate odometer inconsistency or heavy commercial-style usage. For a prospective buyer, the priority inspection areas are the front suspension and steering linkages, as track rod end play has previously been a flagged issue on both sides. On a test drive, listen for any knocking or clonking from the front end over bumps and speed humps, particularly during full lock manoeuvres where worn ball joints tend to be most audible. Check for uneven or feathered wear across the full width of the front tyres rather than just the inner edge, as inner-edge wear can indicate worn bushes or alignment drift beyond simple camber issues, and inspect the tyres for any stepped wear pattern suggesting a failing suspension component. Steering should feel precise with no slack or wandering at motorway speeds, and any vibration through the wheel under braking would warrant closer inspection of the brake discs given the 2026 advisories on both axles. Given the recurring advisory pattern on brake discs at both ends, the braking system deserves particular scrutiny. Feel for any pulsing or judder through the brake pedal under firm application, which would suggest the discs have worn beyond their service limit and require machining or replacement, and listen for grinding or scraping noises that might indicate pad material is approaching the backing plate. Examine the discs visually for a pronounced lip at the perimeter, a bluing effect from overheating, or deep circumferential scoring. Also inspect the front tyres carefully for any uneven shoulder wear, as the 2022 and 2026 advisories specifically noted edge wear, which can be symptomatic of incorrect tracking, worn suspension bushes, or sagging coil springs. A careful inspection of the underbody for any corrosion, particularly around the suspension subframe mounting points and brake line routing, would be prudent on a fourteen-year-old Mercedes, even though no such items have yet been flagged on the MOT record.