Total Complaints
5 filings
PORSCHE 911 TURBO · model year
5 NHTSA complaints, 1 crash report, and 1 active recall for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2004PORSCHE911 TURBO carries 5 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 1 crash, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2004 911 TURBO is engine with 4 filings, followed by engine and engine cooling (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 1 active recall campaign, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 5 investigation files overlapping the 2004 911 TURBO. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
5 filings
Crashes Reported
1 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ENGINE | 4 |
| ENGINE AND ENGINE COOLING | 1 |
SUSPENSION:FRONT:MACPHERSON STRUT
Ohlins USA, Inc (Ohlins) is recalling certain Front Struts, part number POS 5N20. These struts were sold as part of Ohlins strut kits part number POZ MN02, intended for installation on 1999-2005 Porsche 911 Carrera 4 and 4S (generation 996), and 2001-2006 Porsche 911 Turbo / Turbo S (generation 996
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"). UPON STOPPING THE CAR IT WAS OBSERVED ONE OF THE COOLANT HOSES LEADING FROM THE WATER PUMP HAD COME LOOSE. THESE ARE HOSE FITTINGS WHICH ARE EPOXIED INTO THE ALUMINUM WATER DISTRIBUTION SYSTEM WHICH COME LOOSE OVER TIME AFTER THE EPOXY BECOMES BRITTLE WITH AGE. THE ENGINE DEPOSITED ITS ENTIRE COOLANT SYSTEM QUANTITY RAPIDLY ONTO THE EXIT OFFRAMP OF THE HIGHWAY WHICH MAY POTENTIALLY CAUSE A CRASH. THIS IS AN EXTREMELY WELL DOCUMENTED ISSUE AFFECTING GT1 BLOCK ENGINES MADE BY PORSCHE IN THE 996TT, 996 GT2, GT3, AND 997 TT VEHICLES.
Mileage: 78,000
SUMMARY: FAILURE OF COOLANT HOSES DURING NORMAL OPERATION OF VEHICLE, RESULTING IN IMMEDIATE FLUSHING OF ALL COOLANT ONTO ROAD SURFACE AND INTO ENGINE BAY. IMMEDIATE ENGINE SHUTDOWN REQUIRED TO PREVENT FURTHER DAMAGE. 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 ACCIDENT HAZARD AFFECTING VEHICLE AND SUBSEQUENT TRAFFIC. DETAILS: SATURDAY, JULY 27, 2013, ~7:15PM ET, NASSAU COUNTY NY - WESTBOUND ON STATE ROUTE 24 - HEMPSTEAD TURNPIKE. DRIVING AT APPROXIMATELY 45MPH IN 3RD GEAR, VEHICLE OPERATOR NOTICED A THICK CLOUD OF VAPOR EMANATING FROM THE REAR OF THE VEHICLE, OVER THE ENGINE COMPARTMENT. OPERATOR BROUGHT VEHICLE TO A HALT IN THE MIDDLE OF THE ROAD, WHEREUPON THE ODOR OF BURNING COOLANT WAS DETECTED. HAVING BEEN
Mileage: 28,000
THE COOLANT FITTINGS FAILED, ALMOST CAUSING AN ACCIDENT.. THERE WAS NO ONCOMING TRAFFIC. *TR
Mileage: 52,300
MY 911 TURBO SUFFERED A COOLANT SYSTEM FAILURE, AS HAS BEEN WELL DOCUMENTED FOR THIS PARTICULAR ENGINE, THE GT1 3.6 LITER IN THE 2001-2007 TURBO, GT2 AND GT3. 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. THEY DRAINED THE COOLING SYSTEM, REPLACED THE WATER SOCKET AND ASSOCIATED SEALS AND FILLED AND BLED THE COOLING SYSTEM. THE FAILURE RESULTS FROM THE USE OF EPOXY TO ATTACH THE COOLANT PIPE TO THE SOCKET INSTEAD OF A HARD-THREADED DESIGN LIKE PORSCHE USES ON THE RACE VERSION OF THIS ENGINE. THIS FAILURE WILL OCCUR AGAIN IN THE FUTURE, AS THE REPAIR USES THE VERY SAME EPOXY, AT WHICH TIME I AM LIKELY TO BE OUT OF WARRANTY AND SEVERAL THOUSAND DOLLARS. *TR
Mileage: 55,478
AT A DRIVER EDUCATION EVENT IN KENT, WA, A PORSCHE TURBO HAD A FAILURE IN THE COOLANT FITTINGS THAT CAUSED THE CAR TO DUMP ALL OF ITS COOLANT ON THE PAVEMENT. I WAS BEHIND THE CAR IN A PORSCHE GT3 AND UPON DRIVING OVER THE COOLANT LOST TRACTION AND TOTALED MY CAR. 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. THIS IS WELL DOCUMENTED IN FORUMS SUCH AS RENNLIST.COM. HTTP://FORUMS.RENNLIST.COM/RENNFORUMS/SHOWTHREAD.PHP?T=679777&REFERRERID=108168. I HAVE HEARD OF A PCA CHAPTER THAT HAS REQUIRED THAT CARS ON THE TRACK RUN WITH WATER WETTER OR FIX THIS ISSUE WITH GETTING THE FITTINGS WELDED. GIVEN THE NUMBER OF INCIDENTS AND THE DAMAGE TO CARS EXPERIENCING THIS FAILURE AND THE CARS AROUND THEM, SOMETHING MUST BE DONE TO ADDRESS THIS. ESPECIALLY SINCE TURBOS
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.