2004 Mercedes-Benz C 1.8L Petrol · SP04 LSJ

Corrosion and recurring component wear represent the primary mechanical risks for this vehicle, particularly regarding the structural integrity of the rear sub-frame and the condition of the braking system. The most recent MOT test on 07 October 2025 resulted in a pass, but it followed a failure on 06 October 2025 due to an inoperative engine malfunction indicator lamp. The inspection history shows a persistent pattern of advisories concerning deteriorating brake hoses, exhaust mounting defects, and ongoing sub-frame corrosion. While the vehicle has passed its recent tests, the presence of multiple advisories related to both the braking system and structural corrosion suggests a trend of progressive wear that requires close monitoring. The recorded mileage of 84,939 miles over approximately 22 years indicates a low annual usage rate of roughly 3,861 miles. While this lower mileage suggests less frequent mechanical wear on the drivetrain compared to high-mileage vehicles, it can also be associated with longer periods of inactivity. In this specific case, the MOT history reveals several advisories that are common in vehicles with lower usage, such as the deterioration of rubber components like brake hoses and suspension dust covers, which can perish over time due to age rather than distance travelled. A prospective buyer should pay particular attention to the underside of the vehicle, specifically the rear sub-frame and the condition of the brake pipes and hoses. The records show repeated advisories for rear sub-frame corrosion and nearside and offside rear brake hoses that are starting to deteriorate. During a test drive, it is essential to check for any changes in brake pedal feel, such as sponginess or a lack of firmness, which could indicate the degradation of the brake hoses is affecting hydraulic pressure. Additionally, listen for any knocking or clunking sounds from the front or rear suspension, as the history has flagged worn suspension arm bushes and deteriorated ball joint dust covers in previous years. Further inspection should be directed at the exhaust system and the engine bay. Previous tests have noted exhaust gas leaks from the centre box and defective exhaust mountings, so the driver should listen for any unusual droning or loud exhaust notes under acceleration. The history also includes an advisory for an oil leak that was not considered excessive; therefore, checking the engine bay for active weeping or heavy oil staining is necessary. Finally, ensure that all lighting, including the registration plate lamp which has been flagged as inoperative in recent tests, is fully functional and that the dashboard warning lights operate correctly to ensure the engine management system is communicating accurately.