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July 30, 2026 Service bulletin

Shrill Humming/Clacking Noise from the Engine Compartment: Check Mounting/Fastening of the ATF Cooler...

Porsche technical service bulletin 51/26 for 2017-2026 Porsche Panamera, 2017-2024 Porsche Panamera 4s and 2017-2020 Porsche Panamera Turbo and others.

Bulletin number
51/26
Component
Power train
Summary
Shrill Humming/Clacking Noise from the Engine Compartment: Check Mounting/Fastening of the ATF Cooler and/or ATF Lines (SY 51/26)

Owners of these vehicles have filed 6 complaints in the transmission category.

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