2017 Vauxhall Insignia 1.6L Diesel · SC17 XHB

A clear pattern of front and rear suspension wear, compounded by a dangerous tyre failure, dominates the mechanical history of this Insignia and should be the starting point for any prospective evaluation. Across the recorded tests there are five separate advisories relating to the rear coil springs alone, including both nearside and offside units flagged for corrosion in 2021 and a repeat nearside advisory in 2023, before one offside rear coil spring fractured outright at the 2022-09-15 test, causing an immediate failure. Shock absorber integrity has been questioned on multiple occasions, beginning with a nearside front light misting of oil in 2021, escalating to a serious fluid leak failure at the 2022-09-15 test. The most recent assessment on 2024-09-12 recorded no defects at all, suggesting that the suspension components previously flagged have either been renewed or have not yet deteriorated to advisory level, but the cumulative evidence indicates this is an area requiring close physical inspection rather than relying on the clean pass alone. Mileage accumulation on this vehicle is notably high for its age, with 150,600 recorded miles over approximately nine years equating to an annual figure of around 16,700 miles, well above the typical average for a vehicle of this type. The MOT entries also reveal an inconsistent testing pattern, including a test on 2020-05-10 that carried only a COVID-19 extension advisory and a subsequent pass on 2020-07-21 with no recorded defects, followed by irregular submission dates in 2021 and 2022 where a failure on 2021-09-03 was followed by a re-test on 2021-09-06, and a similar pattern of a failure on 2022-09-15 immediately retested on 2022-09-16. Mechanically, sustained high annual mileage accelerates wear on consumables including brake pads and discs, suspension bushes and bearings, drivetrain mounts, and exhaust mounting hardware, and the recorded advisory for wearing rear brake pads in 2023 is consistent with this usage profile. The fact that no odometer readings are visible in the advisory text means mileage continuity cannot be independently verified from these records alone, and any inspection should confirm that the current odometer reading is consistent with the wear observed on interior trim, pedal rubbers, and driver contact points. On a physical inspection, particular attention should be paid to the front suspension and steering assemblies, as the history points to ongoing concerns in this area. The nearside front shock absorber has been flagged twice in three years, first for light oil misting and later for a serious fluid leak; any inspection should look for fresh oil residue on the damper body and gaiter, listen for clonking or knocking noises over uneven surfaces, and check for uneven settling when the vehicle is rocked at each corner. Given the recorded fracture of an offside rear coil spring, both rear springs should be examined for surface corrosion, cracking at the lower coils, and any sign of vehicle sag indicating loss of spring rate. The brake system, while not yet producing a failure, showed rear pads wearing thin in 2023, and a test should include a firm pedal application from speed to detect any judder suggesting warped rear discs, alongside a visual check of pad material remaining through the wheel spokes. Further checks should focus on the specific components historically flagged, beginning with the nearside front tyre structure, as a dangerous defect was recorded in 2021 due to a structural bulge caused by separation. All four tyres and the spare should be inspected closely for any bulges, blisters, or uneven shoulder wear, and replaced items verified as being of consistent age and specification. The windscreen wiper system has produced multiple advisories and a major failure for ineffective clearing in 2022, so both wiper blades should be checked for secure attachment, even contact across the screen, and the wiper linkage for any slack or knocking from the scuttle panel. The offside rear registration plate lamp was flagged as inoperative on two consecutive tests in 2022 and warrants confirmation that the issue has been properly resolved rather than simply passing on the day. Finally, a thorough underside examination on a ramp is advisable given the high mileage and coastal or winter road salt exposure implied by the corroded coil spring advisories, paying particular attention to subframe mounting points, brake pipe unions, and exhaust hangers for the type of corrosion that develops progressively between MOT tests.