2003 Alfa Romeo 156 1.7L Petrol · LS03 AVG

The most recent MOT test on the 2003 Alfa Romeo 156 took place in early September 2023 and resulted in a passing grade, though it revealed persistent but non-failing advisories that have recurred across multiple inspections. The overall maintenance trend over the past decade is characterised by a gradual accumulation of wear-related issues rather than a clear improvement or deterioration. While the vehicle has not failed an MOT since 2016, the presence of recurring advisories—particularly around tyre wear, exhaust leaks, and suspension components—suggests that the car has not been fully maintained to industry standards. The most critical advisory from 2023, the near-side front drive shaft CV boot deterioration, indicates a developing mechanical failure that could lead to oil leakage or seal breach if left unaddressed, potentially compromising drivetrain integrity over time. The emissions-related failures in 2016 and 2018 further underscore the need for attention to the engine’s long-term health, especially given the vehicle’s age and the potential for fuel system or catalytic converter degradation. The recorded mileage of 111,998 miles for a car approaching its 23rd birthday is unusually low by comparison, averaging just under 4,870 miles annually—a rate that suggests either minimal operational use or prolonged periods of standing. Such low mileage can mask wear on consumable items like brake pads, tyres, and fluids, as these components degrade more slowly when stationary. However, it also raises concerns about potential corrosion and standing-related issues, such as brake disc corrosion from prolonged idling, caliper binding, or fluid degradation in the cooling and hydraulic systems. The absence of significant mileage accumulation over the past decade implies that the vehicle has not been subjected to the same levels of stress as a higher-mileage counterpart, but this also means that age-related wear—such as tyre sidewall perishing, suspension bush stiffness, or engine wear from lack of use—may be more pronounced than one might expect. A buyer should be particularly vigilant about checking for signs of standing corrosion on critical components like the exhaust system, brake components, and electrical connections. For a prospective buyer, the most urgent inspection priorities should focus on the recurring advisories and potential long-term risks. The near-side front CV boot failure is a critical issue that demands immediate attention, as a compromised seal could lead to oil leakage into the drivetrain, causing accelerated wear on the differential and transmission. During a test drive, listen for unusual noises from the front axle, particularly when accelerating or turning, which may indicate oil starvation or bearing wear. The tyre wear advisories from multiple MOTs highlight uneven or excessive tread loss, which could stem from misaligned wheels, suspension issues, or improper load distribution. Inspect the tyres for signs of cupping, block wear, or internal damage, and verify that the vehicle handles straight and evenly at speed. The minor exhaust leaks, though not failing, should be addressed to prevent carbon build-up in the catalytic converter or increased emissions, which could worsen over time. A thorough visual inspection of the exhaust system for rust or structural weakness is essential, as standing corrosion can compromise its integrity. Beyond the immediate advisories, the buyer should conduct a comprehensive physical inspection tailored to the vehicle’s age and usage profile. Given the low mileage, check the tyres for signs of sidewall cracking or perishing, which can occur even with minimal use if the rubber has been exposed to UV light and temperature fluctuations for extended periods. Inspect the brake system for corrosion on discs and linings, particularly on the near-side where standing corrosion is more likely to occur, and ensure that the calipers do not bind when the brakes are applied. The battery should be tested for voltage and charge capacity, as prolonged disuse can lead to sulphation or terminal corrosion, which may require replacement. Fluid levels, including the engine oil, coolant, and brake fluid, should be checked and topped up if necessary, with a note on the calendar-based degradation of these fluids—oil should be changed every 10,000–15,000 miles or every 12 months, whichever comes first, to prevent sludge formation. Additionally, the suspension components, such as the coil springs, shock absorbers, and bushings, should be inspected for stiffness or excessive play, as these can degrade silently over time. Finally, a review of the service history—particularly for the CV joint replacement, exhaust system repairs, and emissions-related servicing—would provide further insight into the vehicle’s maintenance record and long-term reliability.