Porsche 911 996
Weaknesses, engine ratings and buying advice
450 PS
3.6L Boxer Biturbo Turbo S Benzin
183 units — the pinnacle of air cooling
Legendary!360 PS
3.6L Benzin
9 weaknesses
Stay Away!Body Variants
The Porsche 911 996 is available as Coupé and Cabrio — choose your body type for specific insurance data:
Generations
Engine Overview
The Porsche 911 996 is available with 5 engine variants — from 286 to 450 hp. 3 variants had engine changes — the model year is crucial.
The Porsche Carrera (Benziner, 300–325 PS) comes with 2 different engines: M96.01 (1997–2001, Be Careful) und M96.05 (2001–2005, Be Careful). Pay attention to the model year for the Carrera!
The Porsche Carrera 4 (Benziner, 300–325 PS) comes with 2 different engines: M96.01 (1998–2001, Be Careful) und M96.05 (2001–2005, Be Careful). Pay attention to the model year for the Carrera 4!
The Porsche GT2 (Benziner, 483 PS) has the M96.70 (3.6L Turbo) — rated: "Be Careful", 5 known weaknesses.
The Porsche GT3 (Benziner, 360–381 PS) comes with 2 different engines: M96.76 (1999–2001, Stay Away!) und M96.79 (2003–2005, Stay Away!). Pay attention to the model year for the GT3!
The Porsche Turbo (Benziner, 420 PS) has the M96.70 (3.6L Turbo) — rated: "Be Careful", 5 known weaknesses.
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Corrosion on AC Lines AC refrigerant lines corrode with age and moisture. Refrigerant loss leads to AC failure. Particularly common on cars kept in humid environments. Symptoms: AC no longer cools, refrigerant loss, visible corrosion on lines under the car from 100,000 km | High |
Top Reported Issues
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Known Problems and Issues
A total of 89 weaknesses have been documented for the Porsche 911 996 (1997–2005) — 82 engine-related and 7 vehicle-related. 2 problem engines: M96.76 (3.6L), M96.79 (3.6L). Typical issues affect HVAC, Electronics, Body, Suspension.
911 (M64/60, 1995–1998) — Be Careful: Turbocharger bearings worn (both units), Engine bay wiring harness — insulation brittle (recall), Boost control hose faulty. Power: 408 PS.
911 (M64/21, 1996–1998) — Be Careful: Engine bay wiring harness — insulation brittle (recall), Valve cover gasket porous, Chain case gasket leaking. Power: 285 PS.
911 (M64/22, 1996–1998) — Be Careful: Engine bay wiring harness — insulation brittle (recall), Valve cover gasket porous (oil loss), Chain case gasket leaking. Power: 285 PS.
911 (M96.01, 1997–2001) — Be Careful: IMS bearing single-row: engine failure risk, Bore scoring: cylinder bore wear, Cylinder head crack: oil in coolant. Power: 300 PS.
911 (M64/60S, 1997–1998) — Be Careful: Turbocharger bearings worn (both units), Valve cover gasket porous (oil loss), DME relay heat death — engine won't start. Power: 450 PS.
911 (M96.76, 1999–2001) — Stay Away!: Coolant Pipes Detach (GT1 Block), Fuel Pump Hose Disintegrates Internally, Timing Chain Guides Wear. Power: 360 PS.
911 (M96.70, 2000–2005) — Be Careful: Coolant Pipes Become Brittle and Crack, Plastic Water Pump Impeller Fails, Wastegate Actuator Fails with Age. Power: 420 PS.
911 (M96.05, 2001–2005) — Be Careful: IMS bearing dual-row: bearing failure possible, Bore scoring: cylinder bore wear, Rear main seal leaking. Power: 320–325 PS.
911 (M96.70, 2001–2005) — Be Careful: Coolant Pipes Become Brittle and Crack, Plastic Water Pump Impeller Fails, Wastegate Actuator Fails with Age. Power: 483 PS.
911 (M96.79, 2003–2005) — Stay Away!: Coolant Pipes Detach (GT1 Block), Fuel Pump Hose Disintegrates Internally, Timing Chain Guides Wear. Power: 381 PS.
911 (M97.01, 2004–2008) — Be Careful: Bore Scoring: Cylinder Wall Wear 3.8L, IMS Dual-Row Bearing: At-Risk 997.1 Model, Air-Oil Separator (AOS) Blocked. Power: 355 PS.
What to watch out for with the Porsche 911? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Porsche 911 996 have? +
What should I look for when buying a used Porsche 911 996? +
Which engine is recommended? +
Which Porsche 911 996 engine is the most fun? +
Is the Porsche 911 996 worth buying used? +
What horsepower variants are available for the Porsche 911 996? +
Last updated: February 2026 · All information without guarantee