2017 Mercedes-Benz C 3.0L Petrol · CC67 AMG

The most recent MOT test, conducted on 19 August 2026, resulted in a Pass, although two advisories were issued specifically relating to the nearside front shock absorber. The first notes a light misting of oil, suggesting that the hydraulic fluid within the unit is beginning to seep past the internal seals, while the second indicates a reduced damping effect, which is the mechanical consequence of that seal degradation. With the preceding five tests from 2021 through 2025 all returning clean passes with no advisories recorded, the overall maintenance trend has been notably consistent and stable over much of the vehicle's recent life. The sudden appearance of suspension-related advisories at the latest test, however, introduces the first emerging mechanical concern in an otherwise well-documented history and warrants close attention from any prospective buyer. Against an age of approximately nine years, the recorded mileage of 50,497 miles equates to an annual average of around 5,600 miles, which is considerably below the typical usage rate for a vehicle of this vintage. This lower-than-average mileage could reflect either genuinely light motoring or, more likely given the annual MOT cycle, extended periods of standing or very infrequent use. Such low annual mileage carries its own set of mechanical implications distinct from those associated with high-mileage wear. Vehicles that spend prolonged periods stationary are particularly susceptible to brake disc corrosion, binding brake calipers, deterioration of brake fluid through moisture absorption, degradation of tyre sidewalls through age-related perishing, and reduced longevity of the 12V battery due to repeated partial discharge cycles. Given the recent advisory concerning the nearside front shock absorber, a thorough physical inspection should begin with a focused examination of the front suspension. On a test drive, the buyer should listen carefully for any clonking or knocking noises emanating from the front end, particularly when traversing uneven road surfaces, speed humps, or potholes, as these are characteristic symptoms of worn or failing damping components. The vehicle should also be evaluated for excessive body roll during cornering, prolonged oscillation after passing over bumps, and uneven or cupped wear patterns on the front tyres, any of which would confirm that the shock absorber's reduced damping effect is beginning to compromise ride quality and tyre longevity. A visual inspection of the nearside front strut for any further oil weeping, corrosion around the damper body, or perished mounting bushes would provide a clearer indication of how soon replacement may be required. Additionally, given the low annual mileage, the buyer should verify the age of the tyres rather than relying solely on tread depth, as tyres fitted in 2017 or earlier will require replacement due to sidewall hardening and cracking regardless of remaining tread. The brake discs should be examined for any surface corrosion or, conversely, any signs of hot-spots or lipping that might suggest the calipers have been binding during the vehicle's periods of light use. Beyond the suspension advisories, attention should also be directed towards the time-sensitive service items that low-mileage usage can overlook. Brake fluid should be changed regardless of mileage at intervals not exceeding two years, and a fluid older than this on a 2017 vehicle would almost certainly be due for replacement to ensure continued braking performance and to prevent internal corrosion within the brake system. Similarly, the 12V battery should be load-tested, as batteries that have undergone repeated shallow discharge cycles through infrequent use frequently fail without warning, and a nine-year-old original unit would be well beyond its expected service life. Coolant, transmission fluid, and the condition of the engine and gearbox mountings should all be verified through the service book, with any gaps in the documented history prompting closer scrutiny. Finally, a comprehensive under-bonnet inspection for oil leaks, perished hoses, and the condition of the auxiliary drive belt is advisable, and the buyer should request evidence that the timing belt or chain service interval has been observed in line with Mercedes-Benz manufacturer recommendations for this model.