2002–2004 Porsche 911 (996)
Browse our directory of 2002–2004 Porsche 911 (996) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Common Problems & Reliability
The 2002–2004 Porsche 911 (996) has 4 known issues. 2 of these are classified as serious faults that could be expensive to repair. 2 are moderate concerns worth inspecting before purchase.
IMS Bearing Failure
SeriousEarly M96 engines can suffer intermediate shaft bearing failure, leading to major internal damage.
Symptoms: Metal debris in oil filter, Oil leak near rear main seal area...
Est. repair cost: £1,500–£2,500 (preventative)
Cylinder Bore Scoring
SeriousLater 3.6 engines can suffer bore wear, leading to ticking, smoke and expensive rebuilds.
Symptoms: Ticking from one bank when warm, High oil use...
Est. repair cost: £8,000–£12,000
Rear Main Seal Oil Leak
ModerateThe rear main seal between engine and gearbox degrades over time, causing oil to leak into the bellhousing area. Often mistaken for IMS failure.
Symptoms: Oil drip under car when parked, Oil residue between engine and gearbox...
Est. repair cost: £1,500–£2,500
Coolant Pipe Failures
ModerateThe coolant crossover pipes and thermostat housing o-rings perish, causing coolant loss and potential overheating. Plastic degrades with heat cycles.
Symptoms: Sweet coolant smell, Low coolant warning...
Est. repair cost: £400–£800
Buying Tips for the 2002–2004 Porsche 911 (996)
- ✓Treat a bore scope and oil-filter inspection as part of the purchase process on Carrera models.
- ✓Check the front bumper intakes for rotten radiators and condensers because UK road salt and leaves collect there.
- ✓A manual or Tiptronic 996 can be great, but any warm-engine smoke or chain noise deserves specialist scrutiny.
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