2004 Vauxhall Signum 2.0L Petrol · SS04 BOS

The vehicle passed its most recent MOT test on 22 January 2026, although the latest result carries two advisories concerning slight play in both the nearside and offside front track rod end ball joints. Reviewing the broader history, the trend is mixed rather than conclusively stable or worsening. There are two failures on record, both relatively recent, one in January 2023 for exhaust emissions, an exhaust leak at the front flexible section, an obstructed windscreen view due to a sunstrip, and a mismatched front direction indicator colour, and another in January 2022 simply for insufficient washer fluid. Several advisories have also recurred over multiple tests, most notably corrosion and deterioration around the front brake discs, discolouration of front and rear direction indicators, and ongoing defects with the central exhaust mounting. The exhaust itself has been flagged for a minor gas leak in 2025 and showed emissions exceedances in 2023, which together suggest the exhaust and emissions system is a chronic weak point on this vehicle. Steering and suspension wear, evidenced by the track rod end play advisories in 2026 and an earlier advisory on the nearside front inner steering rack arm, also indicate progressive wear in the front end that warrants close attention. With 124,842 miles recorded over approximately 22 years, this Signum has covered an average of around 5,675 miles annually, which is notably low for its age and suggests either a period of light use or significant standing time interspersed with limited driving. Low annual mileage of this nature reduces wear on major drivetrain components but brings its own concerns, particularly around standing-related corrosion, fluid degradation over calendar years irrespective of odometer reading, and deterioration of rubber and plastic components. The relatively even annual test cadence without large gaps indicates the vehicle has been used consistently, if sparingly, which is generally preferable to long periods of inactivity. However, buyers should still be mindful of age-related wear, as the MOT mileage recorded only confirms what has been driven and not how long the vehicle may have stood between uses. Given the recurring advisories on front brake disc corrosion and scoring, a prospective buyer should carry out a careful road test focusing on smoothness under braking, listening for any brake shudder, vibration through the steering wheel, or uneven pedal feel which would indicate the discs have worn beyond their service limit and require replacement. The track rod end play advisories from the latest test should be evaluated by physically rocking the front wheels with the car raised, and during a test drive any clonking over bumps, vagueness in steering response, or uneven front tyre wear, particularly inner or outer shoulder wear, would confirm that the steering rack or tie rod ends now require replacement. The direction indicator discolouration noted across multiple years is a recurring issue that should be checked for correct amber output, and the indicator lens condition assessed for UV degradation and cracking, both common on vehicles of this age. The exhaust system warrants particular scrutiny given the history of leaks at the front flexible joint and the central mounting defect; during a cold start listen for ticking or hissing sounds suggesting escaping gases, inspect the rubber mounting for cracking, and check the flexi joint area carefully as failure here previously caused the vehicle to fail on emissions. Beyond the recorded defects, the low mileage and 22-year age profile demand a thorough physical inspection of components that deteriorate with time rather than use. Tyres, despite passing the wear depth check, should be examined closely for sidewall perishing, cracking, and dry rot, which is common on vehicles that have stood for extended periods, and the production date on the sidewall should be reviewed regardless of tread depth. The 12V battery is likely well beyond its typical service life and should be load tested, as prolonged standing with infrequent use is one of the fastest routes to battery failure. Brake fluid, coolant, and engine oil should all be treated as time-serviced items; even at low mileage, brake fluid should be replaced at least biennially due to its hygroscopic nature, while coolant and oil degrade through thermal cycling and oxidation regardless of distance covered. Examine the underside and inner wheel arches for corrosion, particularly around suspension mounting points, subframe, and brake and fuel lines, which are notorious rust traps on older Vauxhalls of this generation. The inner CV boot flagged as severely perished in early 2023 should be inspected for splits and grease loss, as this component can fail suddenly if not replaced, and the previously noted oil leak should be traced to confirm it has not worsened into a concerning level. Finally, verify the service book history stamps and request evidence of cambelt and water pump replacement, as these are critical interval-based items on the engines fitted to the Signum and their omission can lead to catastrophic engine damage irrespective of the low recorded mileage.