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

Question

Accepted Answer

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.

Lot 8652: 2008 Porsche 911 Carrera S

Classic cars

Cars for sale

Resources

Lot 8652: 2008 Porsche 911 Carrera S

Become a CLASSIC Insider