Lot 8652: 2008 Porsche 911 Carrera S

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$47,900
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Apr 24, 2026
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2008 Porsche 911 Carrera S
  • 100k mi
  • Location: Costa Mesa, California, USA
  • Originality: Original & Highly Original
    info
  • Transmission: Manual
  • Handedness: LHD
  • There are 15 Porsche 911 Carrera S Coupe - Manual - 997.1 (2004 to 2008) for sale right now.
Anon

“What are the common issues with the 2008 Porsche 911 Carrera S engine?”

Rusty assistant avatar

Based on my research, the 2008 Porsche 997 Carrera S (997.1 generation) with the M97 engine has several well-documented engine issues to be aware of:

1. Bore Scoring (Cylinder Liner Scoring)

This is the most significant and costly issue affecting 997.1 models from 2005-2008. The cylinder liners can develop scoring that causes:

  • Audible ticking/knocking sounds, especially when cold
  • Oil consumption
  • Loss of compression
  • Eventual engine failure if untreated

The 3.8L engines are particularly susceptible. The good news is your listing specifically states “no bore scoring” was found.

2. IMS (Intermediate Shaft) Bearing Failure

While less common in 2008 models than earlier years, the IMS bearing can still fail and cause catastrophic engine damage. Symptoms include:

  • Metal debris in oil filter
  • Rough running
  • Complete engine failure

2008 models have an improved design, but failures still occur.

3. RMS (Rear Main Seal) Leaks

Common oil leak from the rear main seal that can:

  • Cause oil drips
  • Lead to clutch contamination (since it’s a manual)
  • Require transmission removal for repair

4. Variocam Issues

The variable valve timing system can develop problems:

  • Faulty solenoids (your listing mentions they just replaced one)
  • Cam actuator failures
  • Rough idle or power loss

5. Oil Consumption

These engines are known to consume oil, especially as mileage increases. Regular monitoring is essential.

6. Cooling System Issues

  • Water pump failures
  • Thermostat housing leaks
  • Cooling fan resistor problems

The good news is your specific car has had recent major service including variable timing solenoid replacement, indicating it’s been well-maintained. The fact that it shows no bore scoring is particularly valuable for this generation.