2013 Mercedes-Benz A-Class 1.5L Diesel · ND13 NNF

The most recent MOT, conducted on 08 August 2025 at 124,631 miles, resulted in a pass, but the maintenance trend is best described as borderline and reactive rather than consistently improving. The vehicle failed the previous day, 07 August 2025, at the identical recorded mileage, indicating the tester identified critical structural defects that were rectified within 24 hours. While the immediate safety critical failures were addressed for the retest, the underlying pattern reveals persistent corrosion and suspension fatigue. The nearside rear coil spring has been flagged for corrosion in three of the last four annual tests, dating back to the August 2024 pass at 118,384 miles. This recurring advisory suggests the vehicle has been subjected to prolonged exposure to moisture and road salts without comprehensive underbody protection, a pattern that rarely resolves without component replacement. The recorded mileage of 124,631 miles across a thirteen-year lifespan averages approximately 9,587 miles per year, which sits squarely within typical UK usage for a vehicle of this age. The progression from 109,477 miles in October 2023 to 118,384 miles by August 2024 shows a steady accumulation of roughly 8,900 miles over ten months. However, the jump from 118,384 miles to 124,631 miles between August 2024 and August 2025 represents an increase of 6,247 miles, a slight deceleration in annual usage. The mileage data itself is clean and consistent with no obvious gaps or anomalies, suggesting the vehicle has been in regular daily use rather than sitting stationary for extended periods. A buyer conducting an in-person inspection must prioritise the structural integrity of the rear suspension and braking system. The repeated identification of corrosion on the nearside rear coil spring, coupled with the fractured offside rear coil spring noted in the August 2025 failure, points to systemic suspension fatigue. Both rear coil springs require close physical inspection for section loss, pitting, and any signs of impending fracture. The offside rear outer brake pipe was flagged for corrosion with swelling beneath its plastic coating during the August 2025 pass, meaning the repair was likely superficial or the pipe was replaced, yet the surrounding hard lines and flexible hoses must be stripped of any underseal or grease to verify the true extent of metal wastage. The 2023 failure also identified a failed offside front anti-roll bar linkage dust cover, which, if neglected, accelerates joint wear and introduces play into the front suspension geometry. Beyond the suspension and braking circuits, the October 2023 failure recorded a digital warning message indicating a passenger airbag fault. Although no permanent warning light was illuminated at the time of testing, this fault code demands a full diagnostic interrogation of the supplemental restraint system before purchase. The airbag squib wiring beneath the passenger seat is a known failure point on this platform, and an unrectified intermittent fault could suppress deployment in a collision. Tyre condition has been inconsistent, with multiple failures for exposed cords, bulges, and edge wear, suggesting either misalignment or a previous owner deferring basic consumable replacements. A thorough four-wheel alignment check and close inspection of the inner sidewalls on all four tyres are essential before committing to purchase.