Vehicles using M64.60 engine list:

Engine M64.60

Symptoms:
- Rough idling and misfires
- Loss of power or hesitation during acceleration
- Oil leaks around the valve cover and camshaft seals
- Excessive oil consumption
- Check engine light illumination

Diagnosis:
- Inspect ignition coils and spark plugs for wear or damage, as these engines are prone to ignition issues.
- Perform a compression test to check for cylinder sealing problems.
- Check for oil leaks around valve cover gaskets and camshaft seals, common leak points on the M64.60.
- Scan the engine control unit (ECU) for fault codes related to misfires, oxygen sensors, or fuel delivery.
- Examine the intake manifold and vacuum lines for cracks or leaks that can cause rough running.

Fixes:
- Replace worn or faulty ignition coils and spark plugs to restore proper combustion.
- Renew valve cover gaskets and camshaft seals to stop oil leaks.
- Repair or replace cracked vacuum lines and intake manifold components.
- Clean or replace the mass airflow sensor and oxygen sensors if faulty.
- Address any detected mechanical issues such as valve guide wear or piston ring problems if compression is low.
- Regular oil changes with high-quality synthetic oil to maintain engine lubrication and reduce wear.

Prevention:
- Follow the manufacturer’s recommended maintenance schedule strictly, including timely spark plug and ignition coil replacement.
- Use only high-quality engine oil and change it at recommended intervals to prevent sludge buildup and wear.
- Regularly inspect and replace aging gaskets and seals before leaks develop.
- Avoid prolonged idling and aggressive driving to reduce engine stress.
- Keep the cooling system in good condition to prevent overheating, which can accelerate seal and gasket failure.

By addressing these common issues proactively, owners of the Porsche 911 Turbo (1995–1998) with the M64.60 engine can maintain reliable performance and longevity.