2015 Vauxhall Insignia 2.0L Diesel · DA15 RWO

The most recent MOT test on 2026-05-19 resulted in a pass, but it revealed two significant advisories that warrant careful consideration. The presence of corroded coil springs on both the rear suspension assembly is a critical advisory under clause 5.3.1(b)(i), indicating advanced wear and potential structural compromise to the vehicle’s suspension geometry and ride dynamics. Corrosion in coil springs typically progresses from rusting of the wire strands, leading to reduced spring stiffness and eventual failure, which could result in abrupt suspension collapse or uneven ride quality. The advisory also notes that the fuel filter housing is slightly damp, which, while not failing, suggests a potential risk of contamination or blockage if left unaddressed, particularly if the vehicle has been stationary for extended periods. The absence of failures in previous MOTs since 2022 suggests that while maintenance has been generally consistent, the recent advisories indicate a shift toward more pronounced mechanical wear, particularly in the suspension and exhaust systems. The vehicle’s mileage of 82,481 miles over approximately 11 years represents a moderate annual usage rate of around 7,498 miles per year, which is within the expected range for a car of this age and class. However, the relatively high mileage—especially given the vehicle’s age—implies significant exposure to wear on consumables, suspension components, brakes, and drivetrain elements. The absence of major mileage gaps in the MOT history suggests that the vehicle has been driven regularly, which can accelerate the degradation of suspension bushes, seals, and fluid systems. For instance, the repeated advisories on tyre wear and suspension components indicate that the vehicle has likely experienced uneven loading or excessive stress on certain parts, potentially due to misalignment, worn suspension linkages, or poor road conditions encountered. Buyers should be mindful that higher mileage, particularly in a vehicle nearing its mid-decade, often correlates with increased risk of hidden mechanical issues, such as drivetrain wear, brake system fatigue, or internal engine component wear. To proceed with a thorough inspection, prospective buyers should prioritise checking the rear suspension for signs of further corrosion or play in the coil springs and shock absorbers, as well as inspecting the wheel bearings and suspension bushings for excessive play or grinding noises, particularly when cornering or over bumps. During a test drive, listen for clunking noises from the rear suspension, which may indicate loose or failing components, and monitor the vehicle’s handling for excessive body roll or uneven tyre wear patterns, which could signal misalignment or suspension imbalance. The corroded coil springs should be addressed promptly, as they may require replacement to prevent suspension failure and maintain roadworthiness. Additionally, verify the condition of the fuel filter housing and ensure no leaks or unusual odours are present, as dampness can lead to fuel system issues if ignored. For fluid systems, given the vehicle’s age and mileage, it is advisable to check the condition of all fluids, including the engine oil, brake fluid, differential fluid, and coolant, for signs of contamination or degradation. The brake system should be inspected for signs of corrosion on discs and linings, particularly on the near-side rear where wear was noted in previous MOTs, as standing corrosion can cause binding or reduced braking performance. Tyres should be examined for sidewall perishing, which is more likely in older vehicles due to exposure to ozone and UV light, even if they are within legal tread depth. Finally, the 12-volt battery should be tested for charge retention and overall health, as prolonged periods of disuse or high mileage can accelerate battery failure. If the vehicle has been stationary for extended periods, consider checking for rust on the undercarriage, especially around wheel arches and exhaust components, as standing water and road salt can accelerate corrosion. A comprehensive service history check would also be beneficial, as the lack of recorded service stamps in the MOT history may indicate gaps in maintenance, particularly for fluid servicing and component replacements.