2001 Peugeot 206 1.6L Petrol · OY51 HXH

A recurring oil leak together with an exhaust emissions failure dominates the recent MOT history of this 2001 Peugeot 206. The vehicle recorded an oil‑leak advisory in both 2023 tests and a major exhaust lambda‑sensor fault plus a minor exhaust leak in the October 2023 failure; a front anti‑roll‑bar linkage dust‑cover defect was flagged in 2021. After those issues were noted, the car passed unconditionally in 2024 and again in October 2025, suggesting that the specific faults have either been remedied or are no longer detectable at test. With only 42,501 miles logged over roughly 25 years the average annual mileage sits at about 1,700 mi, well below typical usage for a vehicle of this age. Such low utilisation often points to light, possibly intermittent use, which can preserve engine and drivetrain components but may also allow rubber and elastomer parts to age and harden. The MOT record shows no large mileage jumps between tests, indicating a consistent, modest usage pattern rather than periods of high‑stress driving. Prospective buyers should focus on the three areas highlighted by the MOT record. For the oil leak, inspect the valve‑cover gasket, oil pan seal and any visible oil trails on the sump; a persistent drip may manifest as oil spots on the garage floor or a faint oil smell at idle. The exhaust system should be examined for any audible hissing, soot deposits around joints, or a noticeable drop in engine idle smoothness, all of which can stem from the previously recorded leak and the lambda‑sensor out‑of‑spec reading that can affect fuel trim and emissions. The front anti‑roll‑bar linkage dust‑cover should be checked for integrity; a missing or damaged cover can allow dirt to contaminate the ball joint, potentially leading to clunking noises over bumps or a vague looseness in the steering feel. A thorough pre‑purchase test drive is advisable: listen for any rattles or knocks from the suspension, especially when traversing uneven surfaces; feel for any steering pull or excessive play that could indicate lingering anti‑roll‑bar wear; verify that braking is firm and free from pulsation, as undiagnosed oil leakage can sometimes affect brake fluid reservoirs. Finally, have a qualified mechanic perform a focused inspection of the oil seals, exhaust manifold and pipework, and the anti‑roll‑bar linkage to confirm that the earlier defects have been correctly rectified and that no new corrosion or wear has developed.