2003 Mercedes-Benz CLK 2.3L Petrol · PL03 ACY

The most recent DVSA examination on 4 October 2023 resulted in a Pass, though it is notable that an identical test date produced both a Fail and a Pass entry, indicating that a rectification was made on site or the same vehicle was re-presented within the same inspection window. The Pass was accompanied by an oil leak advisory, a minor windscreen damage item, a brake pipe corrosion advisory covering all pipes, and an exhaust shield advisory. The 2022 test also flagged brake pipe corrosion, this time split between front and rear, alongside corrosion on both inner sills. Taken together, the recurring brake pipe corrosion advisories over consecutive tests suggest an ongoing, progressive deterioration of the braking hydraulic system rather than a one-off finding, while the inner sill corrosion is a structural concern that warrants close physical inspection. The maintenance trend cannot therefore be described as stable; the pattern points to a vehicle where corrosion-related deterioration is gradually advancing and will need addressing in the near term. With a recorded mileage of 160,862 miles across approximately 23 years of service, the vehicle is averaging around 6,994 miles annually, which is broadly typical for its age and consistent with mixed private and short-journey use. There are no unusual gaps in the recorded mileage progression that would suggest prolonged standing, and equally no evidence of exceptionally rapid accumulation. That said, a 23-year-old Mercedes-Benz of this mileage will have experienced significant wear on consumable and drivetrain components, including timing chain and tensioner components, suspension bushes, coil springs, dampers, and engine mountings, all of which are subject to fatigue regardless of the relatively modest annual figure. The oil leak advisory is also consistent with age-related gasket and seal hardening at this mileage. A prospective buyer should pay particular attention to the brake hydraulic system, given that corrosion advisories have been recorded at two consecutive MOTs covering all four corners. The brake pipes, particularly along the underbody and inner arches, should be physically inspected for advanced surface corrosion, pitting, or flaking, as corroded pipes will eventually require replacement to pass an MOT and to ensure safe braking performance. On a test drive, listen for any sponginess or excessive travel in the brake pedal, and watch for pulling to one side under braking, which could indicate a seized caliper or hydraulic restriction from a heavily corroded pipe. The inner sill corrosion advisory is a more serious structural matter and the sills should be examined on a ramp or with the wheels removed to confirm that any corrosion is surface-only rather than penetrating, as MOT failure criteria around structural integrity are strict. The oil leak should be traced to its source, as even a non-excessive leak from a 23-year-old engine can escalate, and the exhaust heat shield should be re-secured to prevent rattling. Beyond the advisories, several age- and mileage-related checks are advisable before purchase. The tyres, even if legal, should be examined for sidewall perishing and cracking typical of rubber that has aged beyond ten years regardless of tread depth, and the spare should be checked likewise. Brake discs should be inspected for corrosion ridges and the calipers for seizing given that the vehicle has stood between uses. The 12V battery is likely due for replacement on age grounds, and the buyer should verify the date code. Coolant, brake fluid, and automatic transmission fluid should all be regarded as overdue for renewal on a calendar basis, as these degrade with time even when the vehicle is in regular use. Service history should be verified to confirm that the timing chain, tensioner, and guides have been addressed, and a compression or leak-down test would be prudent given the mileage and the recorded oil leak.