2007 BMW 3 Series 3.0L Petrol · SJ07 AAZ

A persistent theme across the MOT record is the recurring corrosion of the rear sub‑frame, flagged each year since 2022 and even cited as a dangerous failure in 2023, while the brake discs on both axles are repeatedly noted as worn or pitted. The latest test in April 2026 was passed, but it still carried advisories for both rear brake discs and the rear sub‑frame, indicating that the underlying issues have not been rectified and remain a point of concern for future roadworthiness. At 151,525 mi the car averages just under 8,000 mi per annum over its 19‑year lifespan, a mileage rate that sits within normal usage patterns for a vehicle of this age. The MOT history shows no significant gaps in testing, suggesting the odometer reading is likely accurate and the vehicle has been driven consistently rather than sitting idle for extended periods. This steady accumulation of miles aligns with the observed wear on the brake discs and the progressive sub‑frame corrosion, both of which are typical wear points on a car with this mileage profile. When inspecting the rear sub‑frame, look for any visible rust flaking beyond surface staining, especially around mounting points and the rear suspension bushings. On a drive, pay attention to any deep clunk or knock when traversing bumps, as this can signal weakened structural integrity or loose mounting bolts. A steering wheel that pulls to one side, or uneven rear wheel alignment, may also be symptomatic of sub‑frame distortion. Given the advisory status, a thorough visual and tactile inspection by a qualified mechanic, possibly including a chassis alignment check, is advisable before committing to purchase. The brake system warrants immediate scrutiny: both front and rear discs have been flagged for wear, with the rear discs described as pitted or scored. Measure disc thickness against the manufacturer’s minimum specification and feel for any pulsation or vibration in the pedal under braking, which can indicate warped discs or uneven wear. The off‑side front suspension arm dust cover was recorded as severely deteriorated in 2025, so examine the control arm for corrosion, cracked bushings, or excessive play, and listen for knocking noises over uneven road surfaces. Finally, confirm that the washer fluid system, which failed in 2024, now operates correctly and that tyre tread depth meets the legal 1.6 mm minimum, as the vehicle previously failed a dangerous tyre tread test. Addressing these specific items will give a clearer picture of the car’s current mechanical condition.