2004 BMW 730 3.0L Diesel · A21 JHJ

The latest MOT test passed on 22 May 2026, but the recorded history indicates a downward trend in mechanical maintenance. While the vehicle has avoided major failures, the progression from brake-related advisories in 2024 and 2025 to a minor defect involving a severely deteriorated CV boot in 2026 suggests that wear-and-tear components are reaching the end of their serviceable life. The recurring mention of windscreen damage also points toward a pattern of addressing only the most essential items rather than performing proactive maintenance. With 184,321 miles covered over 22 years, the vehicle has been driven approximately 8,378 miles per year, which is considered typical usage for a car of this age. This mileage profile suggests the vehicle has been used regularly rather than sitting idle, which can be beneficial for preventing certain types of corrosion. However, the high cumulative mileage means that critical components such as suspension bushes, coil springs, and various engine seals are likely subject to significant fatigue and should be closely examined for signs of failure or leakage. A primary concern for a prospective buyer is the offside rear constant velocity boot, which is noted as severely deteriorated. This component protects the CV joint from contaminants; if it fails completely, grit will enter the joint and cause premature mechanical failure. During a test drive, pay close attention to any clicking or popping sounds when turning the steering or accelerating, as these are classic symptoms of a damaged CV joint. Furthermore, the history of brake imbalance and thin pads requires a thorough check of the braking system. Look for any brake shudder under heavy load or a pulling sensation to one side, which may indicate binding calipers or warped discs. In addition to the specific defects noted, the age of the vehicle warrants a comprehensive physical inspection. Check the tyres for sidewall perishing or cracking, which can occur even if the tread depth remains high. Inspect the underside of the vehicle for signs of structural corrosion or fluid leaks from the gearbox and engine. Finally, it is vital to verify the service book for evidence of regular fluid changes, particularly brake fluid and coolant, as these are time-sensitive maintenance items that are not always captured by the MOT testing process.