Lot PBS773080: 2011 Porsche 911 Turbo S

Based on my research, here are the key reliability issues with the Porsche 991 Turbo S:

Common Reliability Issues:

1. Ignition Coil Failures - Multiple reports of ignition coil issues, particularly on 991.1 models (2012-2016). Symptoms include rough idling, engine misfires, and check engine lights. Some owners report needing to replace multiple coils.

2. Coolant System Issues - Coolant leaks are a known problem, particularly around the turbocharger coolant lines. This can lead to overheating if not addressed promptly.

3. PDK Transmission Concerns - While generally reliable, some 991.1 models have experienced PDK faults, including issues with reverse gear engagement and transmission control module problems.

4. Turbocharger Oil Leaks - Some owners report oil leaks from the turbocharger system, which can affect performance and create mess issues.

5. Fuel System Issues - Reports of fuel pressure irregularities and fuel pump problems, particularly in higher-mileage examples.

Good News:

• The 991 Turbo S doesn’t suffer from the infamous IMS bearing issues that affected earlier 911 generations (996/997.1)
• Overall reliability is generally good for a high-performance sports car
• The 3.8L twin-turbo engine is robust when properly maintained

Maintenance Recommendations:

• Regular oil changes with proper synthetic oil
• Monitor coolant levels and check for leaks
• Address ignition issues promptly
• Have PDK transmission serviced according to schedule

The 991.2 models (2017-2019) addressed many of the early issues and are generally considered more reliable. Would you like me to help you find specific 991 Turbo S listings or compare reliability with other 911 generations?