1986 Porsche 944 2.5L Petrol · D642 GWX

The most recent DVSA MOT test on this Porsche 944, conducted on 2021-11-22, resulted in a pass with two advisories: an oil leak and slight underside corrosion. While the vehicle has not failed an MOT since 2016, the recurring advisories over the past five years indicate a pattern of persistent issues rather than a sudden deterioration. The consistent presence of oil leaks and structural corrosion advisories suggests that while the car remains roadworthy, it has not been fully maintained to prevent progressive wear on critical components. The lack of failures in the last five years is commendable, but the advisories warrant careful attention, particularly as the vehicle’s age and mileage increase the likelihood of these issues escalating. The recorded mileage of 167,399 miles for a vehicle aged approximately 40 years represents an annual usage rate of around 4,185 miles, which is notably low for its age. Such low mileage can result from infrequent use, long periods of storage, or a lifestyle that avoids heavy daily driving. However, this usage profile does not necessarily mitigate the wear and tear that prolonged exposure to environmental conditions—particularly salt, moisture, and temperature fluctuations—can impose on a vehicle. The combination of low mileage and extended periods of inactivity may exacerbate issues like corrosion, particularly in the underside and structural areas, as seen in the MOT history. Additionally, standing for extended periods can lead to brake system corrosion, binding calipers, or even warped discs due to heat retention, which could compromise braking performance. Given the recurring oil leak advisories and structural corrosion warnings, the prospective buyer should prioritise a thorough mechanical inspection. Start by locating and inspecting the oil leak source, which could stem from a faulty oil seal, gasket, or valve cover gasket. Listen for unusual engine noises, particularly during cold starts or at idle, which may indicate a leaking head gasket or piston ring failure. Check under the vehicle for any additional signs of oil pooling, especially near the engine bay, transmission, or differential. During a test drive, monitor for a loss of power, excessive smoke from the exhaust, or a noticeable drop in engine performance, which could signal a more severe internal leak. For the structural corrosion advisories, visually inspect the undercarriage, wheel arches, and any exposed metal components for signs of rust progression, particularly in areas prone to moisture exposure. Pay close attention to the rear tyres, which were noted to be worn close to the legal limit in previous MOTs; replace them immediately if they are below the legal minimum tread depth to avoid hydroplaning hazards. Beyond the mechanical checks, the buyer should also address the broader maintenance needs of a vehicle with this level of age and usage history. Given the low annual mileage, the engine and transmission fluids should be replaced according to the manufacturer’s recommendations, as fluids degrade over time even without significant mileage. Check the brake system for corrosion on discs and linings, especially if the vehicle has been stationary for extended periods, as this can lead to binding or reduced braking efficiency. Inspect the battery terminals and overall condition for signs of corrosion or weakness, as a failing 12V battery can cause electrical gremlins and poor starting performance. Finally, examine the tyres for signs of sidewall perishing or cracking, which can compromise structural integrity and safety, particularly on older vehicles that have not undergone recent tread replacements. Consider a comprehensive fluid flush, including coolant, brake fluid, and differential/transmission fluids, to mitigate age-related degradation. If the vehicle has been stored for long periods, ensure all fluids are topped up to prevent further corrosion and ensure all systems are primed for operation.