2004 PORSCHE 911 M96/03/M96/04 (996)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Intermediate shaft bearing wear (M96 engine)
• Rear main seal leaks
• Cooling system thermostat failure

First checks

• Inspect intermediate shaft bearing and oil leaks
• Check water pump and thermostat operation
• Verify clutch and transmission smoothness

Antes de cambiar piezas

• Save fault codes and freeze-frame data before clearing anything.
• Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
• Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

• Engine codes and specs may slightly vary with market and model (Carrera, Carrera 4, Turbo).
• This profile covers mainly the 996 generation 911 in 2004, the last model year before 997 introduction.