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Porsche DBB
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Porsche DBB
Verdict
GOOD · 72/100
Est. cost /3yr
€9,000-18,000 over 3 years including scheduled servicing, tyres, brakes, and minor dealer repairs for a well-maintained example
Oil interval
15,000 km
Recalls
0
Worst issue
Intake Valve Carbon Buildup (Direct Injection)
MODERATE
Porsche DBB
992 · 992
Intake Valve Carbon Buildup (Direct Injection)
€300-800
MODERATE
Turbocharger Wastegate Rattle
€500-1,500 per turbo (often warranty covered)
MODERATE
Auto Start-Stop System Malfunction
€200-800
MODERATE
Electronics Complexity and Gremlins
€300-2,500
MODERATE
Piano Black Interior Wear and Scratching
€100-500
LOW
Porsche DBB
992 · 992
•Request a full Porsche PIWIS diagnostic scan across all modules, check for any stored or pending electronic fault codes
•Cold start the car and listen for a metallic rattle from the turbochargers at idle, a known early-production quirk
•Test the auto start-stop function at multiple stops during the test drive to confirm it operates correctly
•Check idle quality and throttle response for signs of intake valve carbon buildup on cars over 80,000 km
•Inspect all piano black interior trim under strong lighting for scratching or damage that may indicate hard use
•Verify service history shows oil changes at or below 15,000 km intervals with Porsche C20 0W-20 synthetic
•If buying CPO, confirm all software updates (PCM, DME) are current and any turbo related warranty work is documented
Porsche DBB
992 · 992
Intake valves (carbon buildup)
Budget for a walnut blasting cleaning if rough idle or misfire appears, common by 80,000-100,000 km
80,000-100,000 km
Turbocharger wastegate actuators
Listen for rattle at idle on any used purchase, verify any dealer TSB or warranty work related to the turbos
20,000-60,000 km
Start-stop module and PCM/DME software
Confirm latest firmware installed and function tested during test drive
Pre-purchase check
Porsche DBB
992 · 992
No recalls on record
Porsche DBB
992 · 992
✓The 3.0L twin-turbo flat-six architecture is a mature evolution of the proven 991.2 unit, refined rather than redesigned
✓No structural bottom-end or IMS-bearing type issues, unlike older water-cooled Porsche flat sixes from the 996/997 era
✓Twin-turbo setup delivers strong real-world driveability with minimal lag despite being naturally-derived from a smaller unit
✓Strong specialist and dealer support network with active enthusiast communities sharing maintenance data
✓No manufacturer recalls confirmed for this specific engine/chassis combination as of current data
Porsche DBB
992 · 992
Real consumption
11 L/100km
Official consumption
Not available
Oil interval
15,000 km
Oil spec
Porsche C20 0W-20 full synthetic (e.g. Mobil 1 ESP Formula 0W-20 meeting Porsche C20 spec). Do not substitute the thicker 0W-40/0W-60 oils specified for the naturally aspirated GT3/GT3 RS, those are a different engine family.
Est. cost /3yr
€9,000-18,000 over 3 years including scheduled servicing, tyres, brakes, and minor dealer repairs for a well-maintained example
Porsche DBB
992 · 992
385 hp · 450 Nm
2019-2023
394 hp · 450 Nm
2024-2025
Do not choose between the 385 hp and 394 hp base Carrera purely on power figures, the difference is a minor turbo update rather than a fix for a known defect. Focus instead on service history, confirmed turbo rattle inspection, and a clean PIWIS scan regardless of model year. If cross-shopping against the Carrera S/4S, remember those use a different, higher-boost engine tune, not the same DBB unit, so issues and parts are not fully interchangeable.