2003 Volkswagen Golf 1.9L Diesel · LB03 ABZ

The most recent MOT, carried out on 7 March 2026, was passed but returned two advisories – a minor oil leak that is not deemed excessive and a small rear‑exhaust leak of gases. Compared with the 2023 records, where the vehicle failed on safety‑system warnings and also carried multiple advisories, the trend is cautiously positive: the electronic stability control and supplemental restraint system faults that caused the 2023 failure appear to have been rectified, leaving only relatively low‑severity leaks to monitor. The persistence of the rear‑exhaust leak across three consecutive tests, however, suggests a component that has not yet been fully resolved. At 124,868 miles for a 2003 model the annual average mileage works out to roughly 5,400 mi per year, well below the typical 10,000–12,000 mi expected for a vehicle of this age. Such low utilisation often points to periods of extended storage or very light use, which can be as consequential as high mileage. Prolonged standing can accelerate rubber ageing, corrosion of brake components and battery depletion, while also allowing moisture to settle in the engine bay and exhaust system, potentially exacerbating the observed leaks. Prospective buyers should give particular attention to the recurring oil and exhaust leaks. Inspect the valve‑cover gasket, oil pan and any visible hoses for fresh oil traces, and verify that the oil level remains stable after a short drive. The rear‑exhaust leak may manifest as a faint hissing sound, a sulphur‑like smell at the rear of the car, or a slight drop in exhaust note; a visual inspection of the muffler and rear pipe for rust‑through or cracked joints is advisable. Verify that the non‑obligatory stop lamp now functions correctly, as a missing rear‑light can affect visibility and legal compliance. Although the SRS and ESC warnings were cleared for the latest test, obtaining a diagnostic scan to confirm that no stored fault codes remain will protect against unexpected airbag or traction‑control failures. On a test drive, listen for any abnormal exhaust rumble, feel for shuddering under braking, and watch for uneven wheel torque that could hint at lingering exhaust or brake‑system issues. Given the vehicle’s age and low‑usage profile, a thorough age‑related inspection is essential. Check all four tyres for sidewall cracking, dry rot or tread depth below 3 mm, as rubber can perish even on low‑kilometre cars. Examine the 12‑volt battery for swollen cases, corrosion on terminals and verify voltage under load; a battery older than ten years often requires replacement regardless of mileage. Inspect brake discs for surface rust, scoring or uneven wear, and ensure calipers move freely without binding – standing can cause pistons to seize. Look over suspension bushings, ball joints and rubber mounts for cracks, hardening or excessive play, and assess the condition of the steering rack boots. Finally, confirm that all fluid reservoirs – coolant, brake fluid, power‑steering and gearbox oil – have been changed within the manufacturer’s time intervals, as fluids degrade with age even when not heavily used.