2019 Mercedes-Benz A 1.3L Petrol · T77 AAG

A cluster of suspension and seat belt defects caused a failure on 5 December 2025, but a retest just seven days later on 12 December 2025 returned a clean pass with no advisories recorded, suggesting the work was carried out and the items have been put right. Looking at the broader DVSA file, the vehicle has otherwise enjoyed a largely unblemished roadworthiness record, with passes in September 2025, September 2024, and October 2023, the last of which carried a single advisory concerning the offside front tyre wearing close to the legal limit and on its edge. Mechanically, the principal risk to be cognisant of is the anti-roll bar linkage system and seat belt condition, both of which triggered major defects at the most recent test, while the rest of the car has demonstrated a stable and consistent pattern of compliance with the MOT inspection standard. Against an age of roughly seven years, the recorded mileage of 39,094 miles equates to an annual accumulation of approximately 5,585 miles, which sits well below the typical usage band for a modern Mercedes-Benz A-Class. The mileage progression between tests appears even and consistent rather than showing any sudden jumps or extended stationary periods, which suggests the vehicle has been in regular if modest use rather than laid up for long stretches. Lower annual mileage of this nature means wear on major drivetrain and high-load components such as the clutch, turbocharger and engine internals will be reduced, though standing periods can still encourage corrosion to brake discs, surface oxidation on underbody components, and drying of rubber seals and bushes. Overall the usage profile points to light rather than arduous service, with the implication that consumable items should have considerable life left provided they have not been allowed to deteriorate through inactivity. The 2023 advisory regarding the offside front tyre worn close to the legal limit and on its edge is worth noting because it may indicate a tracking or geometry issue that, if not addressed, could lead to uneven wear on replacement tyres. On a test drive, listen for any clonking or knocking from the front suspension, particularly over speed humps and uneven road surfaces, which would suggest renewed wear in the anti-roll bar linkage ball joints that were previously flagged as excessively worn. The steering should feel precise and well weighted with no vibration through the wheel at speed, and the vehicle should track straight without pulling to either side under acceleration or braking. The seat belt items recorded as a failure, specifically webbing that was significantly stretched on the offside front and weakened by a cut from the edge greater than 2mm, will have been rectified to achieve the subsequent pass, but it is prudent to confirm that the replacement seat belt assembly is a genuine Mercedes-Benz part correctly fitted and retracting smoothly without hesitation. Check the operation of both front seat belts by pulling them out fully and ensuring they spool back without snags, and verify the buckle latches positively and release cleanly. A final physical inspection should include a close look at the front anti-roll bar linkages and bushes for any play, an examination of the front tyres for inner-edge wear that would betray a geometry problem, and a thorough check of the underside for any developing corrosion on the subframe and suspension arms, as early signs of structural oxidation are a common concern on vehicles now entering mid-life.