2003 Vauxhall Signum 2.0L Lpg · RF03 SZZ

A persistent and worsening oil leak dominates the mechanical history of this 2003 Vauxhall Signum, having been flagged at every single recorded test from 2018 through 2022 and escalating from a non-excessive seep to a "very bad oil leak" by 2021 and 2022. The 5 August 2022 pass is therefore not a clean bill of health; it represents a vehicle that passed despite an unresolved fluid loss issue of some severity. The trajectory across the five-year window is one of deterioration rather than stability, culminating in the 3 August 2022 failure where the brake system collapsed to dangerous levels, with both the service brake and parking brake efficiencies falling below 50% of the required value alongside a leaking brake pipe. A separate failure just two days earlier in July 2021 added four major defects across the drivetrain, lighting, and airbag warning system, while the July 2020 test recorded a further failed attempt for a split CV boot, an airbag warning lamp fault, and headlamp alignment issues. The pattern indicates a vehicle whose braking, drivetrain, and chassis protection systems have each independently registered significant defects within a short period. With 121,519 miles accumulated over approximately 23 years, the annual mileage works out at roughly 5,283 miles per year, which is notably low for the vehicle's age and suggests periods of either very light use or extended standing. The recorded tests span 2018 to 2022 with gaps of only a few days between paired tests in three of the four years, indicating the car was being presented for testing regularly rather than having long periods off the road. Low annual mileage on an older vehicle does not necessarily equate to preserved mechanical condition, particularly when components such as rubber boots, suspension bushes, coil springs, and brake lines deteriorate through age and corrosion regardless of distance covered. The combination of low mileage and a cluster of age-related failures including corroded coil springs, perished CV boots, a dust cover failure on an anti-roll bar linkage, and a leaking brake pipe reinforces that this Signum has suffered more from time-related degradation than from high-distance wear. A prospective buyer should treat the oil leak as the priority investigation point and budget for its resolution before any other work, given its persistence across five consecutive tests and its upgrade from advisory to major concern in the inspector's wording. On a test drive, listen for any ticking from the engine bay at idle, look for fresh oil residue on the underside, and check the coolant and brake fluid levels for any signs of cross-contamination or rapid depletion. The brake system warrants particular scrutiny: the 2022 failure recorded a leaking brake pipe and sub-50% efficiency on both service and parking brakes, so a thorough check of brake pedal feel, any pulling to one side under heavy braking, and the operation of the handbrake on a slope is essential. Inspect the underside for corrosion along brake and fuel lines, given that pipework on a 23-year-old vehicle in regular use is highly susceptible to rust, and budget for a full brake overhaul including discs, pads, calipers, and flexible hoses if any seepage is visible. Suspension components flagged in 2019 and 2021 deserve close attention on a road test. The offside front ball joint play and anti-roll bar linkage dust cover failure suggest worn or perished front suspension, which typically manifests as knocking or clonking noises over speed humps, uneven tyre wear, or vague steering response. The corroded coil springs noted on both the nearside rear and offside rear indicate chassis-level surface corrosion, so a thorough examination of the rear spring seats, subframe, and wheel arch lips for structural rust is worthwhile, as Signum models of this age are known for corrosion in these areas. Finally, the July 2020 failure included an illuminated airbag warning lamp, which should be diagnosed with a live diagnostic scan to confirm whether the supplemental restraint system is fully functional, as unresolved airbag faults can result in non-deployment in the event of a collision and represent a significant safety concern rather than a minor electrical fault.