Porsche Cayenne 957 Tiptronic Torque Converter Failure
The Tiptronic torque converter on 957 Cayenne develops shudder at 50-65 mph on light throttle at high mileage. TCC (torque converter clutch) slip causes this vibration. Transmission fluid flush with ATF+4 or approved fluid resolves early cases. Persistent shudder requires torque converter replacement at £600-1,200.
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