2005 Smart (mcc) Forfour 1.5L Diesel · EA05 LBU

A recurring theme of corrosion‑related advisories combined with several safety‑critical failures defines this 2005 Smart Forfour’s MOT history. The most recent test in December 2025 was passed, yet it still listed front‑headlamp product build‑up, tyre wear on the nearside front wheel, rear‑sub‑frame corrosion and multiple tyre‑edge warnings. Earlier in 2024 the vehicle failed for exhaust‑emission excess and serious headlamp lens defects, while a 2023 brake‑effort failure and a 2021 fracture of the off‑side front coil spring highlight intermittent but serious safety concerns that have not been fully resolved over successive tests. At 86,744 mi the car averages just over 4,100 mi per year, a markedly low utilisation for a twenty‑one‑year‑old vehicle. Such a modest annual mileage suggests either light, infrequent use or extended periods of storage, both of which can accelerate corrosion on chassis and suspension components despite the low wear on moving parts. The MOT record shows no long gaps in testing, indicating the vehicle has been regularly presented for inspection, but the low mileage does not mitigate the age‑related deterioration evident in the corrosion advisories. Prospective buyers should give particular attention to the rear axle, sub‑frame and both coil springs, all flagged repeatedly for corrosion. Visual inspection should focus on rust‑spotted metal, especially around mounting points, and any signs of compromised structural rigidity such as flexing under load or audible creaks when the suspension is compressed. The nearside rear tyre was noted as slightly damaged and cracking; the front tyres are close to the legal tread limit, so a full tyre tread depth check and sidewall inspection are essential, with replacement anticipated if any surface cracking or uneven wear is observed. The off‑side front coil spring fracture recorded in 2021 may indicate weakened spring integrity, so any knocking or bottoming‑out sensations over bumps should be noted. The brake system also warrants thorough scrutiny. The 2023 failure reported no service‑brake effort on the off‑side rear wheel and an imbalance across the rear axle, suggesting possible caliper sticking, hydraulic leakage or worn pads. During a test drive the rear brake pedal should feel firm and progressive, without pulsation or a soft, spongy response, and the vehicle should not pull to one side under braking. Headlamp lenses have been repeatedly classified as seriously defective, so both lenses should be examined for cracks, clouding or severe oxidation, and the aim should be verified with a proper lamp‑tester. Finally, the 2024 emissions failure indicates the exhaust system or engine management may be out of specification; a functional smoke test or on‑board diagnostics scan would be prudent before committing to purchase.