2009 Mercedes-Benz C 2.1L Diesel · CE09 WYP

The most recent DVSA examination on 28 May 2026 returned a Pass, immediately following a Fail the day before where the nearside parking brake was found inoperative and overall parking brake efficiency fell below requirements. The intervening repair clearly restored functionality, but this should not be viewed as a one-off anomaly; the parking brake fault, combined with the recurring ABS warning lamp illumination recorded at the May 2024 test, indicates that the foundation braking system requires careful verification. A test drive should specifically confirm firm and balanced handbrake application on an incline, with no excessive travel or one-sided pull, and the ABS warning light should remain extinguished throughout. Overall, the maintenance trend over the past four years suggests a vehicle that is passable but consistently accumulating advisories and minor defects rather than a car in demonstrably improving condition. With 137,324 miles recorded on a 2009 Mercedes-Benz C-Class, the vehicle has covered approximately 8,078 miles per year over its seventeen-year lifespan, which is broadly typical for a car of its vintage. The mileage progression across the MOT records appears steady without any extended gaps or sudden accumulations, suggesting regular use rather than long periods of standing. This is mechanically favourable in some respects, as components such as brake discs, callipers, suspension bushes and tyres are less prone to the binding and corrosion that afflict laid-up vehicles, but the high absolute mileage means wear-sensitive drivetrain and undercarriage items, including the rear sub-frame and suspension arms, will inevitably have been worked hard over the years. A closer review of the advisories reveals several recurring themes that warrant direct physical inspection. Front and rear brake discs have been flagged as worn, pitted or scored at every test since 2022, which is consistent with the high mileage and suggests the discs are nearing the end of their service life; on a test drive, listen for any brake shudder or vibration through the steering wheel under firm deceleration, and inspect the discs for visible lipping around the outer edge. The nearside rear brake pipe has carried an advisory for corrosion covered in grease or other material across five consecutive tests, indicating a persistent cosmetic protection issue, but a physical inspection underneath should confirm whether this is merely surface treatment or genuine structural degradation, as brake pipe replacement on a Mercedes of this age can be disproportionately costly if corrosion has progressed. The rear sub-frame corrosion advisory, now repeated, and the rear suspension arm pin or bush wear noted in 2022, both point to undercarriage deterioration that should be examined on a ramp or over a pit for any flaking or lifting of underseal. Further attention should be paid to the anti-roll bar linkage ball joint dust covers, which have failed twice in quick succession on both nearside and offside front items, allowing ingress of dirt to the joints and accelerating wear; on test, listen for clonking noises over speed humps and during direction changes, and have the linkages physically checked for any play. The offside front wheel bearing has carried a slight play advisory for three consecutive years, suggesting progressive wear that could soon become an MOT failure; listen for a drone that rises and falls with road speed, particularly on motorway driving, and check for any roughness when the wheel is rotated by hand. Given the vehicle's age, attention should also turn to time-served items beyond the MOT record: verify the date code on the 12V battery, as units over five years old are prone to cold-start failure, confirm the coolant, brake fluid and automatic transmission fluid have been serviced in line with calendar intervals rather than purely mileage, inspect all tyres including the offside rear for sidewall cracking and perishing given the dry-rot advisory still current, and check the offside headlamp aim mechanism which previously failed outright, ensuring the projector beam sits correctly on level ground.