KNOWN FAULTS · Porsche
Porsche Panamera (971) 2.9 V6 / 4.0 V8 common problems.
2016–2026 · Petrol
Sources are not verified in real time and no entry confirms that your car is affected.
3 known faults with sources
Applies if: Only the Panamera 4S (2.9 V6) from 2017–2018 included in campaign WJ26.
Cracked coolant pipe between the engine block and the left cylinder head on the Panamera 4SCooling
- Engine / equipment
- Panamera 4S (971) 2.9 V6 biturbo
- Period mentioned
- 2017–2018
- Symptoms
- Coolant loss: a stain under the engine, a smell of hot coolant and, if not noticed in time, the temperature and coolant level warning lights on at the same time.
- Possible cause described
- The coolant pipe joining the engine block to the left cylinder head (cylinders 4 to 6) can crack over time because of vibrations in the cooling system. Porsche replaces it with an improved pipe in service campaign WJ26 (technical information 45/18, October 2018).
- Check for the garage
- With the temperature warning light on, stop in a safe place and do not drive on; do not open the reservoir when hot. At the garage, have them check the pipe between the block and the left cylinder head and whether the car has campaign WJ26 outstanding.
- 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.
Sources from the original database
View full entryRear spoiler, PCM, PASM warnings and anti-roll bar links on the Panamera (971)Known weak points
- Engine / equipment
- Second-generation Porsche Panamera (971)
- Period mentioned
- 2017–2020
- Symptoms
- An automatic rear spoiler that sticks or sits lopsided; a faulty PCM screen; PASM chassis warning lights; air conditioning blowing warm; one case of overheating at idle; noise and a yellow warning from the rear anti-roll bar links.
- Possible cause described
- Problems collected by the RAC Drive used-car guide from owners. Porsche recalled 197 cars in the UK because the rear anti-roll bar links could fail.
- Check for the garage
- Raise and lower the spoiler on the test drive; test the PCM and air conditioning; read the PASM fault memory; check the anti-roll bar link recall by VIN.
- 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.
Sources from the original database
View full entryApplies if: US bulletin (162/26) for the Panamera GTS, Turbo E-Hybrid and Turbo S E-Hybrid with the 4.0 V8 from model year 2024; in Europe, ask the dealer.
"Coolant too low" message and traces on the water pump: a little is normal (Cayenne and Panamera V8 from 2024)Cooling
- Engine / equipment
- Porsche Cayenne and Panamera with the 4.0 twin-turbo V8 (S, GTS and Turbo E-Hybrid)
- Period mentioned
- 2024–2026 (US model years)
- Symptoms
- The "Coolant too low" message appears or coolant loss is seen, and the workshop finds small traces in the leakage chamber of the water pump.
- Possible cause described
- The water pump lip seal is lubricated by coolant and can let out up to 3 ml every 100 operating hours: that is normal and not grounds for complaint. The level can also drop after insufficient bleeding or a previous repair. Porsche explains it in its technical information 162/26.
- Check for the garage
- Ask them to check the whole circuit for leaks, confirm the bleeding was done properly and document the leak point with photos before replacing the pump.
- 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.
Sources from the original database
View full entryOther engines of the Porsche Panamera (971)
- E-HybridPlug-in hybrid
- All known faults for the Porsche Panamera (971)