2010 Mercedes-Benz C 2.1L Diesel · OV60 ABX

A persistent pattern of front suspension wear dominates the roadworthiness record of this 2010 Mercedes-Benz C-Class, with anti-roll bar linkage ball joint deterioration flagged at three consecutive tests. The most recent examination on 22 November 2024 returned a Pass, but recorded an offside front anti-roll bar linkage ball joint with slight play, following on from a 2022 test where both offside and nearside front anti-roll bar linkage ball joint dust covers were classified as severely deteriorated. A 2023 advisory for slight play in both front wheel bearings reinforces that the front-end geometry and ancillary components are accumulating wear at an accelerating rate. The 2024 pass also noted a minor exhaust leak at the middle section flexible joint, an item that, while not yet a failure, typically progresses on a high-mileage vehicle and warrants close physical inspection for black soot deposits or audible hissing under load. Across four recorded tests since 2021, there have been no outright failures, but the clustering of front suspension and exhaust advisories points toward a chassis that is entering a period of component fatigue. The recorded mileage of 339,241 miles on a 16-year-old vehicle translates to an annual average of roughly 21,200 miles, which sits firmly in the high-accumulation bracket for a car of this age. There are no significant gaps in the testing record from 2021 through 2024, and the consistent annual test cycle suggests the vehicle has been in regular service rather than laid up for extended periods, meaning the components flagged in advisories have been subjected to near-continuous working cycles. High-mileage Mercedes chassis of this generation are particularly vulnerable to wear in the front suspension subframe mountings, control arm bushes, and steering rack mounting bushes, none of which have yet appeared on the MOT record but should be considered prime candidates given the cumulative mileage and the existing anti-roll bar wear pattern. The brake discs, pads, and rear brake components are also likely approaching or past their second or third replacement cycle on a vehicle that has covered this distance. For a prospective buyer, the immediate priority is a physical inspection of the front anti-roll bar system, because the advisories describe a progressive failure pattern. With the engine running and the vehicle on level ground, listen for clonking or rattling noises from the front suspension over speed humps, rough tarmac, or when turning sharply into a kerb, as these are classic indicators of worn anti-roll bar drop links and ball joints. Place the vehicle on a ramp or use a torch to examine the flexible exhaust joint in the mid-section for active soot staining, corrosion perforation, or separation of the bellows, and check that the front wheel bearings are free of any humming or growling that changes with cornering, which would indicate they have progressed beyond the slight play recorded in 2023. Tyre condition should also be carefully assessed, as the 2021 advisories for both rear tyres worn close to the legal limit and irregular front tyre wear suggest the alignment geometry may be out of specification, potentially accelerated by worn suspension components. Beyond the flagged items, the test drive should focus on secondary symptoms that commonly accompany high-mileage Mercedes-Benz C-Class chassis of this era. Pay particular attention to steering feel, as any vagueness, knocking through the rack, or uneven self-centring can indicate worn steering rack mountings, while brake pedal judder under firm application suggests warped front discs. With the engine at operating temperature, inspect beneath the vehicle for oil residue around the sump, valve cover gasket, and front crankshaft seal, as these are typical seepage points on high-mileage petrol and diesel Mercedes units. Finally, request that the vehicle is placed on a four-post ramp so that the front subframe, suspension arms, and brake pipes can be visually examined for corrosion and deterioration, because brake line replacement behind the wheel arches is a frequent and costly item on vehicles that have seen extensive winter road use, and no such inspection has been recorded in the available MOT history.