2016 Mercedes-Benz C 2.0L Hybrid electric · OU66 NUA

The defining mechanical story for this Mercedes-Benz C-Class is a developing front suspension issue centred on the lower arm ball joints, alongside persistent but non-critical nearside front tyre damage. The most recent test on 14 October 2025 returned a pass, but it followed a failure on 28 December 2023 where the offside front lower suspension arm ball joint was recorded as excessively worn. This defect was downgraded to an advisory with slight play at the subsequent tests in January and December 2024, suggesting the joint was either monitored rather than replaced, or a partial repair was carried out. A ball joint that has progressed from a major failure to repeated advisories within a twelve-month window is a clear pattern of progressive wear rather than an isolated event, and the joint warrants close physical inspection. Recorded mileage of 98,782 miles over an approximate ten-year span equates to roughly 9,878 miles annually, which sits comfortably in line with typical usage for a vehicle of this age and class. There is, however, a notable testing gap between September 2021 and December 2023, a period of over two years with no recorded DVSA interaction. Whether this reflects an expired MOT, a vehicle retained off the public road, or simply a delay in presenting for test cannot be confirmed from the records, but mechanically it does mean the wear profile documented from late 2023 onwards represents a relatively compressed period of assessment. The mileage accumulation since that point appears steady rather than erratic, which is consistent with regular commuter or mixed-use driving rather than sustained high-mileage motorway work. For a prospective buyer, the front lower suspension arm ball joints should be treated as the primary inspection priority. On a test drive, listen for any clonking or dull knocking from the front end when traversing speed bumps, potholes, or uneven road surfaces, as worn ball joints frequently announce themselves under load rather than on smooth tarmac. With the vehicle parked and the wheel gripped at nine and three o'clock, any perceptible vertical play or a clunk when levering the wheel in and out will confirm deterioration. Pay particular attention to steering response on turn-in, as excessive free movement in the joint can introduce vagueness or a momentary delay before the car reacts to steering input. Given the failure history, it would be prudent to budget for replacement lower control arms with new ball joints, a job that on a Mercedes-Benz of this generation typically runs into the low hundreds of pounds at an independent specialist. Secondary checks should focus on the nearside front tyre, which has been flagged for a cut on three consecutive tests. While these cuts have been assessed as not reaching the ply or cords, repeated sidewall damage on the same wheel suggests either a recurring curbing incident, a sharp debris hazard on a regular route, or a wheel alignment issue pushing the tyre into contact with the bodywork. Inspect the sidewall and tread closely for any bulging, cracking, or fresh damage, and verify that the tracking is within manufacturer tolerance, as the lower arm geometry being slightly disturbed by ball joint wear may contribute to uneven or inner-edge tyre wear. Beyond the documented items, a standard pre-purchase evaluation of brake disc condition, fluid age, and corrosion on subframes and arches is sensible given the mileage, but the suspension linkage remains the component most directly supported by the MOT evidence.