Check a VIN

June 9, 2026 Service bulletin

Complaint

Porsche technical service bulletin 88/20 3734 for 2020-2026 Porsche 911, 2020-2023 Porsche 911 Turbo and 2021-2026 Porsche 911 GT3 and others.

Bulletin number
88/20 3734
Component
Power train
Summary
Complaint - Oil Leakages on Double-Clutch Transmission (Porsche Doppelkupplung (PDK)): Observe Specified Procedure (88/20)

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

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Porsche 911?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history