1999 Mercedes CLK 3.2L Petrol · T312 AGM

Recurring advisories concerning oil leaks and component wear define the mechanical profile of this Mercedes CLK, with the most recent MOT pass on 28 March 2023 reflecting a trend of persistent minor defects. While the vehicle passed its latest inspection, the continuity of an oil leak advisory from 2022 through to 2023 indicates a long-term issue that has not been resolved. Furthermore, the 2023 test introduced new advisories regarding near-side front wheel bearing play, thinning rear brake pads, and tyre perishing, suggesting that while the vehicle remains roadworthy, several consumable and mechanical components are reaching the end of their functional life. The vehicle has covered 123,897 miles over its 27-year lifespan, representing an average annual accumulation of approximately 4,589 miles. This is a relatively low rate of mileage for a vehicle of this age. While lower annual mileage can reduce wear on high-motion components like the engine and gearbox, it can also lead to the degradation of rubber and plastic elements due to age rather than use. This is evidenced by the 2023 advisory regarding a near-side front tyre showing signs of cracking or perishing, a common symptom when a vehicle is driven less frequently or spends significant time stationary. A physical inspection and test drive should prioritise the identified oil leak to determine its source and whether it is a slow weep or a more significant fault that could lead to fluid loss. During the drive, pay close attention to the near-side front wheel area; any humming, droning, or grinding noises that increase in pitch with vehicle speed would confirm the reported play in the wheel bearing. Additionally, the driver should monitor for any pulling to one side or vibrations through the steering wheel, which could be linked to the condition of the near-side front tyre or the reported bearing play. Braking performance must also be scrutinised given the advisory for thinning rear brake pads. Listen for any squealing or grinding sounds during deceleration and feel for any unevenness or pulsation through the brake pedal, which could indicate uneven pad wear or disc deterioration. The presence of discoloured indicators and a deteriorated rear registration plate are noted cosmetic and visibility issues, but the primary mechanical focus must remain on the wheel bearing, the sealing integrity of the engine or gearbox to address the oil leak, and the remaining life of the rear braking components.