AI Damage2004 Porsche 911 Turbo: common problems
Owners of the 2004 Porsche 911 Turbo filed 5 complaints with NHTSA, most often about engine and engine and cooling. Details by component below, with sources.
Key figures
- Owner complaints
- 5
- involving a crash
- 1
What fails most often
- 1 Engine 80% of all complaints
- 2 Engine and cooling 20% of all complaints
- Engine: 4 complaints (80% of all).
- Engine and cooling: 1 complaints (20% of all), 1 of them with a crash reported by the owner.
Symptoms owners describe
How many of the 5 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 4 | 0 | 0 |
| Engine and cooling | 1 | 1 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The speed of the turbo at the time of failure was approx 90 mph, the car continued to accelerate down the straight-away after the failure but stopped after realizing the car was smoking. This is a common issue with the 996 series, more commonly in the gt3 than the turbo.
After 1 hour of slow 880-n highway stop and go driving in traffic, a large column of steam was observed coming from rear driver side of vehicle while exiting interstate. Immediately observed huge coolant puddle developing on freeway offramp, and alerts on dashboard gauges ("check coolant level").
Observed risks include: panic situation to operator and passengers of vehicle; catastrophic engine failure due to overheating and consequent accident threat; loss of traction to vehicle and subsequent traffic due to high volume of coolant on road surface; vapor trail limiting visibility of subsequent traffic; roadside…
I was driving on the highway when I noticed smoke coming from the rear of the car. Upon pulling to a stop the car had dumped most of its coolant. It was flat-bedded to the dealer and the steel coolant pipe had pulled out of the aluminum water socket/cross over tube on the driver's side of the engine.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 14,282 of 36,656 model years in the NHTSA data (top 39% most complained about).
On average one model year of the 911 Turbo has 5 complaints (15 years in the data). This year has 5, about average.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Other years of this model
- 911 Turbo 200122 sources
- 911 Turbo 200214 sources
- 911 Turbo 200313 sources
- 911 Turbo 200722 sources
- 911 Turbo 2016396 sources
- 911 Turbo 2017404 sources
- 911 Turbo 2018381 sources
- 911 Turbo 2019395 sources
- 911 Turbo 2020415 sources
- 911 Turbo 2021428 sources
- 911 Turbo 2022412 sources
- 911 Turbo 2023405 sources
- 911 Turbo 202423 sources
Questions and answers
What are the most common problems with the 2004 Porsche 911 Turbo?
Owner complaints to NHTSA most often mention: engine, engine and cooling. Total complaints: 5. The most frequent symptoms in complaint texts: smoke, burning smell, fire (40%), engine failure or replacement (20%), overheating, coolant loss (20%).
How many service bulletins (TSB) were issued for the 2004 Porsche 911 Turbo?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2004 Porsche 911 Turbo from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2004 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.