2007 Mercedes-Benz SL 5.4L Petrol · LB56 FSL

The most recent MOT, dated 6 October 2022, was passed but recorded a series of advisories covering the exhaust system, rear oil seepage, slight play in both front inner tie‑rods and light oil mist from the nearside rear shock absorber. This follows a failure just three weeks earlier for a rear fuel‑pipe leak and similar advisories, and earlier failures in 2020 and 2018 for brake disc wear, service‑brake fluctuation and a faulty horn and door latch. The pattern shows that the vehicle has moved from outright failures to a pass with only non‑fatal advisories, indicating that the most serious faults have been addressed, but a number of wear items remain and are recurring, suggesting a maintenance trend that is stabilising yet still requires attention. With 83 922 mi recorded on a 2007 model, the average annual mileage works out at roughly 4 400 mi per year, well below the typical UK usage of 7‑10 000 mi. Such low utilisation often points to periods of limited running or extended storage, which can be as detrimental as high mileage because seals, bushings and fluids age regardless of distance. The modest mileage means that consumables such as brake pads, discs and tyres may have more life remaining than the odometer alone suggests, but age‑related degradation – especially corrosion of suspension components, rubber hardening and battery capacity loss – is likely to be present. A prospective buyer should give the exhaust system a thorough visual and audible inspection; look for soot‑stained joints, listen for a faint hissing at idle and check for any black deposits around the rear pipe, as a minor leak can lead to increased emissions and, if it worsens, may affect engine performance. The rear oil mist from the shock absorber and the reported rear oil seepage should be checked by examining the under‑carriage for fresh oil stains and by feeling the shock for excessive play or loss of damping – any clunk or uneven ride may indicate deteriorating bushings or a failing damper. The slight play noted in the front inner tie‑rods warrants a hands‑on steering check; any looseness or a vague knock when turning at low speed can signal impending ball‑joint wear. The previous rear fuel‑pipe failure must be verified by inspecting the fuel line for corrosion, cracks or signs of leakage, and by confirming that the fuel tank vent and filler pipe are intact. Brake discs have been flagged repeatedly for wear and pitting; a measurement of disc thickness, inspection for surface scoring and a test‑drive brake feel – looking for pulsation, shudder or increased pedal travel – are essential before committing to purchase. Beyond the specific MOT items, the car’s age dictates a broader set of checks. Examine all tyres for side‑wall cracking, dry rot and tread age; even if tread depth is acceptable, rubber over two decades old can fail suddenly. Verify the condition of the 12 V battery – a load test or a voltage check after a short drive will reveal any loss of cranking power that is common after long periods of inactivity. Inspect suspension bushings, control‑arm joints and wheel bearings for corrosion, excessive play or uneven wear, especially the off‑side front bearing that showed slight play in 2019. Ensure the horn, door latch and electronic‑malfunction‑light (EML) are all operational, as these were previously recorded as faults. Finally, given the vehicle’s calendar age, a full service is advisable: replace engine oil, coolant, brake fluid and power‑steering fluid, change the fuel filter, and consider renewing the brake pads and possibly the discs if thickness is close to the minimum. Addressing these points will give a clear picture of the car’s current roadworthiness and the likely cost of bringing it to a reliable, safe condition.