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1999 996 C4 Tiptronic

Transmission and Clutch

Vehicle Information: Model: 996 C4; Year: 1999; Body Type: Cabriolet; Total Mileage: 38474;

The transmission feels and sounds like it is shifting in and out of fifth gear with slight increases in speed and load. I do not really depress the accelerator hard enough to cause a normal downshift but it sounds and feels like it is. The transmission indicator light always shows fifth gear when this is happening. My local dealer serviced the tiptronic and told me to drive it for a while. They think it might need a new torque converter and pressure regulators. ($4,000) The local rep thinks it is not a Porsche problem. Do you have any experience/ideas. This happens in automatic and manual mode.

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