- Engine / equipment
- Porsche 911 (991.1 and 991.2)
- Period mentioned
- 2012–2019
- Symptoms
- Misfires (coils), the engine cutting out when hot (crankshaft sensor), oil on the auxiliary belt (hydraulic tensioner, early 991.1), water-pump and turbo coolant-line leaks (early 991.2), a thermostat stuck open with the engine light, notchy shifts on the 7-speed manual or PDK warnings.
- Possible cause described
- Known 991 points: Porsche extended the warranty on some water pumps to 10 years, replaced the turbo lines on early 991.2 cars and replaced some 2017 engines for oil consumption. There were recalls for a fuel connector (2012) and the GT3 connecting rods (2014). The PDK needs an oil change every 4 years or 40,000 miles.
- Check for the garage
- Check the history of the water pump, turbo lines and thermostat; read codes; check the PDK service and campaigns 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.
KNOWN FAULT · Porsche
Hydraulic tensioner, cooling, coils and gearbox on the 911 (991)
Sources are not verified in real time and no entry confirms that your car is affected.
Has this happened to you?
Anonymous answer, no personal data.
Frequently asked questions
How much does it cost to repair this fault?
No verified estimate; ask the garage for a quote.
A rough figure from the original database, not an up-to-date quote.
Calculate estimateHow is it checked?
Check the history of the water pump, turbo lines and thermostat; read codes; check the PDK service and campaigns by VIN.
What are the symptoms?
Misfires (coils), the engine cutting out when hot (crankshaft sensor), oil on the auxiliary belt (hydraulic tensioner, early 991.1), water-pump and turbo coolant-line leaks (early 991.2), a thermostat stuck open with the engine light, notchy shifts on the 7-speed manual or PDK warnings.
Which cars and years does it affect?
- Brands
- Porsche
- Engine / equipment
- Porsche 911 (991.1 and 991.2)
- Period mentioned
- 2012–2019
Taking it to a garage?
Models with this entry
- Porsche 911 (991)2011–2019
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