KNOWN FAULTS · Porsche

Porsche 911 (992) common problems.

2019–2026 · Petrol / Hybrid

Sources are not verified in real time and no entry confirms that your car is affected.

2 known faults with sources

Engines: Carrera 3.0 turbo (Petrol) · Turbo / GT3 (3.7 / 4.0) (Petrol) · Carrera GTS T-Hybrid (Hybrid)

Water ingress through the windows and vibration from the engine mounts (911 992)Bodywork

Engine / equipment: Porsche 911 (992)
Period mentioned: 2019 onwards
Symptoms: Damp or water in the cabin; engine vibration felt through the car.
Possible cause described: According to the TÜV report published by AUTO BILD, water got into the 992 through badly bonded windows and there was vibration from overly stiff engine mounts; otherwise hardly any series faults are known.
Check for the garage: Look for damp carpets and check the window seals; check outstanding campaigns by VIN; feel for vibration at idle and when accelerating.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Engines: Carrera 3.0 turbo (Petrol) · Turbo / GT3 (3.7 / 4.0) (Petrol) · Carrera GTS T-Hybrid (Hybrid)

Applies if: US bulletin (975/25) for the 911 (992) from model year 2020 with reversing camera or 360° view; in Europe, ask the dealer.

White messages about unavailable driver assistance systems that go away after a restart (911 992)Driver assistance

Engine / equipment: Porsche 911 (992) with reversing camera or 360° view
Period mentioned: 2020–2026 (US model years)
Symptoms: Several driver assistance systems fail and white messages appear on the dashboard, such as "Assistance systems currently restricted" or "Lane Keep Assist currently not available". After switching the ignition off and on, everything works again.
Possible cause described: The driver assistance control unit (ZFAS) stores code C12D5FA. If it is passive, it may be electromagnetic interference on the video line; if it is active, a faulty contact of the image processor. Porsche describes it in its technical information 975/25.
Check for the garage: Ask the workshop to check whether code C12D5FA is active or passive: if passive, the ground connection of the windshield heating for the front sensors is reworked; if active, the ZFAS control unit is replaced.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.