2001 Porsche 911 3.6L Petrol · WO 6606

A pattern of underbody corrosion combined with a chronic list of brake and suspension advisories defines the mechanical story of this 2001 Porsche 911. Across four recorded tests spanning 2021 to late 2025, the vehicle has passed every annual examination, but almost none of those passes have been entirely clean. The most recent test on 9 December 2025 recorded pitted and scored front brake discs, rear tyres worn close to the legal limit, a cracked nearside windscreen, and an advisory noting corrosion underneath throughout. Earlier tests reinforce this pattern: 2024 flagged both rear tyres nearing the limit and thinning rear brake pads, 2022 recorded a deteriorating front CV joint boot, a perished anti-roll bar ball joint dust cover, a slight offside front wheel bearing play, and again thinning front brake pads, while 2021 picked up play in the offside front track rod end, worn and pitted brake discs across the car, and corroded front and central brake pipes. Taken together, the chassis, braking, and suspension components show persistent wear rather than isolated issues. Mileage accumulation is notably restrained for a 25 year old performance car. The record shows 85,053 miles at the most recent test, equating to roughly 3,400 miles per year on average. The four MOT entries are spaced at near annual intervals with no extended gaps, suggesting the vehicle has been in regular but light use rather than laid up for long periods. Low annual mileage of this kind typically reduces wear on high speed drivetrain components but can accelerate corrosion of underbody and brake components due to limited drying time after short trips, and it can allow rubber boots, bushes, and brake hoses to deteriorate through age rather than use. The combination of modest mileage and recurring advisories points firmly towards age related degradation of consumables and chassis hardware. For a prospective buyer, the underbody corrosion advisory recorded at the 2025 test warrants particular attention. The vehicle should be examined on a ramp for surface rust scale, pitting of the brake pipes, and corrosion around the subframe mounting points, suspension turrets, and floor pans. The repeated brake pipe corrosion advisories from 2021 and the general underbody corrosion note in 2025 suggest that pipework may now be close to requiring replacement, and any signs of active leakage, flaking, or previous repairs should be investigated. The 2025 advisory on scored and pitted front brake discs, combined with thinning rear pads noted in 2024, means a thorough inspection of remaining pad material, disc thickness against the minimum specification, and caliper slide pin operation is essential, with particular care given to checking for any binding or uneven wear that could indicate a seized caliper. The suspension and steering advisories also deserve a focused test drive and inspection. The 2021 record noted play in the offside front track rod end, the 2022 test recorded a slightly worn offside front wheel bearing and a perished upper anti-roll bar ball joint dust cover, and the 2025 entry added further underbody corrosion findings. On a road test, listen for any knocking or clonking from the front end over uneven surfaces, particularly over speed bumps and cat's eyes, and feel for vibration through the steering wheel which could indicate worn wheel bearings or deteriorating CV joints. Steering should remain precise and self centring without looseness or rattle, and the front end should not tramline excessively. Given the age of the vehicle, it would also be prudent to check for any oil leaks from the rear main seal and intermediate shaft area, and to confirm that the recent minor windscreen damage has not progressed to a point where it would now fall outside the prescribed limits at the next test.