2009 Volvo S40 1.6L Diesel · LS59 NBO

The vehicle passed its most recent MOT on 27 August 2026, but the test recorded four advisories that warrant careful attention from any prospective buyer. While the outright pass indicates the car is currently roadworthy, the accumulation of advisories across recent tests suggests a gradually declining condition rather than a stable one. The 2023 test already flagged front suspension arm pin or bush wear on both sides and an injector blow-by issue, and the 2026 test has repeated the suspension bush concern on both nearside and offside front lower arms, indicating these components are continuing to deteriorate rather than having been rectified in the interim. The history also contains a previous failure for a fractured offside front coil spring and a later failure for an insecurely attached offside rear anti-roll bar linkage, which together with the structural corrosion noted on the inner castle rails and the rotting front radiator support point to age-related degradation across both the suspension and the body structure. This is a pattern consistent with a high-mileage, older vehicle where wear items are accumulating faster than they are being replaced. With 152,516 miles recorded over approximately 17 years, this Volvo S40 has averaged around 8,972 miles annually, which is broadly typical for its age and indicates regular use rather than prolonged standing. However, the absolute mileage is high for a vehicle of this vintage, particularly for a Volvo of this era where the diesel engine, turbocharger, dual-mass flywheel, clutch, suspension bushes, and braking components will all have absorbed considerable wear. The recorded mileage progression across the available MOT history does not reveal any obvious annual gaps, suggesting the car has been in consistent use, which is generally preferable to a low-mileage example that may have suffered from corrosion through standing. That said, the high accumulated mileage means that major mechanical refurbishments such as timing belt replacement, turbo servicing, injector overhauls, and suspension renewal are likely to be either due imminently or recently required. The most pressing advisories to investigate on inspection are the front suspension components. Both lower arm rear bushes are noted as split, cracked, and showing some movement, and the fact that this advisory has now appeared twice across separate MOTs confirms progressive wear rather than a one-off observation. On a road test, listen for clonking or knocking noises from the front end when traversing speed bumps, uneven road surfaces, or during slow-speed direction changes, and feel for imprecise steering response or vague directional changes that suggest the suspension geometry is no longer being held correctly. The fractured coil spring previously recorded is also a known weak point on S40 front suspension and should prompt a visual inspection of the spring seats for any unevenness or evidence of recent replacement. Brake components should be examined for binding calipers and corroded or worn discs, and the tyres should be checked for uneven inner or outer wear patterns which would corroborate suspension play. The advisories relating to exhaust gas leakage from the turbocharger area, structural corrosion on the inner castle rails, and a rotting front radiator support are all serious concerns that demand close physical inspection. The turbocharger exhaust leak could indicate failing gaskets, a cracked turbine housing, or loose manifold studs, and you should listen for any whistling, hissing, or ticking noises from the engine bay on startup and during acceleration, while also checking for soot deposits around the turbo and exhaust downpipe joints. The structural corrosion on the inner castle rails is particularly significant as these are load-bearing areas, and while the tester judged rigidity not to be significantly reduced, any future progression could compromise the vehicle's structural integrity and resale value; a thorough inspection underneath the car with a torch, ideally on a ramp, is essential to verify the extent. Additionally, given the vehicle's age and mileage, the buyer should independently verify the timing belt and tensioner replacement history, the condition and age of the 12 volt battery, the state of all coolant and brake fluid which degrade over calendar years regardless of mileage, the operation of the diesel injectors as previously flagged for blow-by, and the service book stamps to ensure that routine maintenance has been conscientiously carried out throughout the vehicle's life.