What should I check when buying a 2004 Porsche 911 (997)?

On 997.1 models, check if an IMS retrofit or a larger factory bearing is fitted.

What should I check when buying a 2004 Porsche 911 (997)?

Look for sootier residue on the left exhaust tip, which can be an early sign of bore scoring.

2004 Porsche 911 (997)

Browse our directory of 2004 Porsche 911 (997) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.

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Common Problems & Reliability

Serious

Moderate

Minor

The 2004 Porsche 911 (997) has 1 known issue. 1 of these are classified as serious faults that could be expensive to repair.

Bore Scoring (Gen 1)

Serious

The Lokasil/Alusil cylinder liners degrade, causing the piston to score the walls. Eventually requires a full rebuild.

Symptoms: Ticking noise at idle, High oil consumption...

Est. repair cost: £8,000–£12,000 (rebuild)

View detailed Porsche 911 (997) fault guide

Buying Tips for the 2004 Porsche 911 (997)

✓On 997.1 models, check if an IMS retrofit or a larger factory bearing is fitted.
✓Look for sootier residue on the left exhaust tip, which can be an early sign of bore scoring.
✓Verify the operation of the PASM dampers; leaking struts are common on S models.

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