2019 MERCEDES-BENZ GLC1.9L DIESEL

The 2019 Mercedes-Benz GLC presents a mixed roadworthiness picture. The most recent MOT, conducted on 1 May 2026 at 34,400 miles, passed but carried three advisories that mark a clear deterioration from the clean bills of health recorded in 2023 and 2024. An engine oil leak, noted as oil on the underside of the undertrays, combined with rear inner brake pads wearing thin and a nearside front tyre worn to the legal limit, suggests routine fluid and consumable maintenance has lapsed. The trend is worsening. While none of these items constitute an immediate failure, their simultaneous appearance after two consecutive years of zero defects signals a shift in upkeep that warrants closer scrutiny. The mileage profile is notably low for a seven-year-old vehicle. Covering just 34,400 miles over roughly seven years equates to approximately 4,914 miles annually, well below the UK average. The interval between the February 2023 test at 11,131 miles and the May 2024 test at 15,852 miles shows a modest gain of 4,721 miles over fifteen months. The subsequent jump to 23,539 miles by May 2025 represents a sharper increase of 7,687 miles in twelve months, and the final climb to 34,400 miles by May 2026 adds 10,861 miles in another twelve-month window. Mileage accumulation has accelerated significantly in the most recent two years after a period of very light use. Such a pattern can indicate the vehicle was parked or underused for extended stretches, which itself carries risks including brake seizure, tyre perishing, and fluid degradation from condensation. The 2025 advisory for cracked and perished rear tyres at 23,539 miles, followed by a nearside front tyre worn to the legal limit just one year later at 34,400 miles, points to either sustained neglect of tyre condition or a suspension or alignment issue causing uneven wear. A buyer should inspect all four tyres for age-related cracking, particularly the sidewalls, and request evidence of recent replacement. The front tyre wear pattern described as worn on the edge suggests possible tracking misalignment or worn suspension bushes and ball joints, which should be checked on a ramp. The engine oil leak flagged in May 2026 deserves particular attention. Oil on the underside of the undertrays is a broad descriptor that could stem from a minor gasket weep or a more significant failure of the main seal, turbo oil feed, or PCV system. A thorough inspection of the engine bay and undertrays is essential to identify the source before committing to purchase. Combined with the rear brake pad wear, which indicates the vehicle has been driven with pads approaching minimum thickness for some time, the overall record suggests this GLC has moved from careful ownership into a period where basic servicing has been deferred. A pre-purchase inspection by a qualified technician is strongly recommended.