2021 Porsche 911 Fuel system Problems
- Complaints
- 3about this part
- Share
- 60%of 5 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the fuel system of the 2021 Porsche 911, 60% of the 5 complaints for this model year. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The fuel injection problem on cylinder 2 and 4 had injector electrical faults for the last two years resulting in reduced power warning. I finally took my car to the dealer for an analysis. After their analysis here is their statement on the service invoice: Client state check engine light comes on and vehicle will run rough - Client scan for codes and had codes P0202 & P0204. Cylinder 2 and 4 fuel injector electrical faults. After updating DME software, clearing faults and test driving, mil illuminated again. Quoted fuel injector replacement. …”
NHTSA complaint #11721529, filed 2026-03“Two separate instances of fuel line failure and fuel leak in the engine compartment. The first in March 2024 and the second in September 2025. The situations both resulted in fuel leaking on top of the hot engine components. Repair requires removal of the engine and transmission. In 2024 repair time was 9 weeks, in 2025 - 3 weeks. In the first case service was covered under warranty, the second partially covered by extended warranty. Repair costs approximately $6,000 per occasion. Leaking fuel on a hot engine clearly created an unacceptable hazard. …”
NHTSA complaint #11693498, filed 2025-10Related service bulletins
- 11033625May 22, 2026Parts information for parts withdrawal involving 9J1827447B, PAA971221B, and 95B201060AA. The lock, the fuel tank attachments, and the module connector. The vehicles affected are…
- 11030905Apr 1, 2026Technical information for a Complaint - Oil Leakages on Double-Clutch Transmission (Porsche Doppelkupplung (PDK)): Observe Specified Procedure
- 11029194Feb 23, 2026Parts information for parts withdrawal involving the fuel filler flap and the charge cable for mains socket. Part numbers 976809857E and 7PP971678GS
- 11029155Feb 13, 2026Parts information for parts withdrawal involving the multi-purpose additive for gasoline. Part number is 00004320902. The vehicles affected are ones that use part number mentioned.
- 11028582Jan 30, 2026Parts information for parts withdrawal involving the - Diagnosis Pump for Fuel System 958906243B and 958906243A. Vehicles affected are ones that use either of the part numbers…
Fuel system: other model years
Other parts of the 2021 Porsche 911
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About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology