Most common 2003 Porsche 911 Turbo problems
Share of the 13 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Porsche 911 Turbo complaints by model year
Best 911 Turbo years: 2003. Years to avoid: 2007. Compare all years →
2003 Porsche 911 Turbo recalls (2)
Seats
Certain passenger vehicles fitted with front seat backs, which do not meet Porsche's strength standards.
Remedy: Dealers will replace both the front seats. Owner notification began on April 26, 2004. Owners should contact Porsche at 1-800-545-8039.
Steering › Hydraulic power assist › Hose, piping, and connections
Certain passenger vehicles May have a loose fitting in the pressure line of the power steering assembly.
Remedy: Dealers will tighten the fitting to specifications. Owner notification began on December 1, 2003. Owners should contact Porsche at 1-800-545-8039.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2003 Porsche 911 Turbo:
Rapid coolant loss
On April 26, 2013, the Office of Defects Investigation (ODI) opened PE13-009 to investigate 10 complaints alleging incidents of sudden coolant loss while traveling on public roadways in certain model year (MY) 2001 through 2007 Porsche 911 vehicles.The complaints alleged that pipe ends joined by epoxy to certain cooling system components may fail suddenly and separate, resulting in large volumes of coolant…
What 2003 Porsche 911 Turbo owners say
Engine & cooling
I was driving my vehicle down the highway while accelerating when I felt the car squirm and noticed a large cloud of smoke billowing from the rear of the vehicle. I pulled over and identified the issue as a catastrophic coolant leak from the engine area (rear) of the vehicle. I had the vehicle transported home and then to a repair shop where they identified the problem as a coolant line that became separated from the engine block. It was explained to me that Porsche, from the factory, used an adhesive like material to mate the connectors of the coolant lines and engine and after usage they will come apart causing coolant to be hemorrhaged onto the engine and potentially wheels/tires causing for very dangerous road conditions. …
While driving home from work in December 2015, on a local road near my home, the engine began emitting a large steam cloud behind the vehicle and the coolant level light appeared. I pulled over and there was a major coolant leak behind the car. I had the car taken to a shop, and they identified the issues as one of the coolant pipes had separated from the engine and dumped all of the coolant on the road. In the attached image you can see the separated coolant pipe from the engine towards the back of the picture. Given the cost of repair, I had to wait until summer of 2016 to have the repair completed.
Frequently asked questions
Is the 2003 Porsche 911 Turbo a good car?
Based on 13 owner complaints filed with NHTSA, the 2003 911 Turbo rates few complaints: 45% fewer complaints than a typical year of the 911 Turbo at the same age. It is one of the best 911 Turbo years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2003 Porsche 911 Turbo?
The engine & cooling — 13 complaints, 100% of all complaints for this model year. Next is the speed control & acceleration (1).
How many recalls does the 2003 Porsche 911 Turbo have?
There are 2 recalls for the 2003 Porsche 911 Turbo, the most recent from February 18, 2004 (seats). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Porsche 911 Turbo?
The best years by complaints, compared at the same age, are 2003. Years to avoid or approach with caution: 2007. See the full Porsche 911 Turbo years comparison.
At what mileage do 2003 Porsche 911 Turbo problems happen?
The median mileage reported in complaints is about 51,000 miles; 46% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.