2019 Mercedes-Benz C 1.9L Diesel · FX69 KYO

A fractured offside front coil spring is the defining mechanical event in this car's history, recorded as a major failure on 19 November 2025, with the vehicle passing the following day once the spring was replaced. That failure is significant because a broken coil spring on a relatively young, moderately used car can point to corrosion fatigue or impact damage, and it raises the question of whether the nearside spring is of similar age and condition. Alongside the spring failure, the November 2025 tests carried advisories for both front tyres worn close to the legal limit on their edges, with wheel alignment recommended, and front brake pads wearing thin. The pass on 20 November 2025 confirms the spring was rectified, but the tyre and pad advisories were repeated rather than resolved, so those items should be treated as outstanding consumable work. Earlier history is otherwise unremarkable: clean passes in 2024, a nail in the nearside rear tyre in 2023, and rear tyres worn close to the limit in 2022, suggesting a recurring pattern of tyres being run down to the legal threshold before replacement. Recorded mileage stands at 51,487 miles at roughly seven years of age, averaging around 7,355 miles per year, which is typical for a car of this age and class. The test dates show consistent annual use with no significant gaps or lay-up periods, so there is no evidence of prolonged standing that might cause seized brakes or perished components. This steady, moderate usage profile is consistent with the wear items recorded: tyres, brake pads, and a coil spring are all components that wear with ordinary road use rather than indicating abuse. However, the edge wear noted on the front tyres in 2025, combined with the explicit recommendation for wheel alignment, suggests the suspension geometry may be out of specification, which can accelerate tyre wear and, if uncorrected, place additional stress on suspension components. For a prospective buyer, the priority is to verify that the coil spring replacement was carried out properly and to establish whether the nearside front spring was replaced at the same time, as springs are commonly renewed in pairs. On a test drive, listen for any knocking, clunking, or creaking from the front suspension over bumps and when turning at low speed, and check that the car sits level at the front with no visible difference in ride height side to side. Inspect both front tyres for uneven shoulder wear, which would confirm the alignment issue persists, and ask for evidence that a four-wheel alignment has been carried out since the November 2025 advisory. The braking system also warrants attention given the advisory for front pads wearing thin. On the test drive, check for a firm, progressive pedal with no judder or vibration under braking, which could indicate disc wear or warping alongside the thin pads, and listen for any squeal or grinding that would suggest the pads have since worn to their limit. Confirm whether the front pads have been replaced since November 2025; if not, budget for pads and possibly discs imminently. Finally, the 2022 advisory noting that engine covers and undertrays obscured some items means the underside has not been fully inspected at every test, so a ramp inspection of the subframe, brake lines, and suspension arms for corrosion would provide useful additional reassurance before purchase.