2004 Mercedes-Benz SL 3.7L Petrol · A11 LBD

The most recent MOT, conducted on 1 September 2025, was passed but carried an advisory noting slight play in the off‑side inner steering‑linkage ball joint. Across the eight‑year MOT record the vehicle has consistently passed without any recorded failures, indicating a generally stable maintenance pattern; the sole advisory suggests a minor wear issue that has not yet progressed to a reject condition. With a recorded 50 297 miles on a 2004 model, the average annual distance is roughly 2 300 miles, markedly below the typical 8‑10 000 miles per year for a car of this age. Such low utilisation often points to periods of infrequent use or extended storage, which can be as consequential as high mileage. While reduced wear on engine and transmission components is a benefit, prolonged standing can accelerate rubber and metal ageing, promote corrosion in brake components, and allow battery capacity to deteriorate if the vehicle is not regularly run. The advisory on the off‑side inner steering ball joint warrants a focused inspection. Examine the joint for excessive movement when the wheel is rocked and check for any uneven wear on the inner tie‑rod ends. During a test drive, listen for vague clunking or feel a vague looseness when turning at low speed, especially when negotiating tight corners. If play is confirmed, a replacement of the ball joint and a subsequent alignment are advisable to prevent progressive steering geometry degradation and premature tyre wear. Additionally, verify that the steering rack and associated bushings are free of oil leaks and that the steering column operates smoothly without binding. Given the vehicle’s age and low mileage, the buyer should also conduct age‑related checks. Inspect all four tyres for sidewall cracks, dry rot, or loss of tread depth, as rubber can perish even with few miles logged. Examine the 12‑volt battery for sulphation and confirm it holds a full charge; a load test is prudent. Look for surface rust on the brake discs and ensure the calipers move freely without sticking, as corrosion can develop during long idle periods. Finally, confirm that all major fluids—engine oil, coolant, brake fluid, and transmission fluid— have been changed in accordance with calendar intervals rather than mileage, and that service stamps in the logbook reflect timely maintenance. Addressing these points will give a clear picture of the car’s current roadworthiness and any imminent maintenance that may be required.