2003 Porsche 911 Turbo Engine Problems
- Complaints
- 11about this part
- Share
- 85%of 13 total for the year
- Median mileage
- 47,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 11 complaints about the engine of the 2003 Porsche 911 Turbo, 85% of the 13 complaints for this model year. Where a mileage was given, the median is 47,000 miles.
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.
“I was driving on interstate 15 northbound when I felt the rear end of my car slip. I was traveling at approximately 70 mpg in 5th gear on a 68 degree evening. I looked in my rear view mirror and saw smoke / steam coming out of the engine compartment. I pulled over as soon as I could, which was approximately 1 minute later. This is exactly what happened in NHTSA action pe13009.”
NHTSA complaint #10681862, filed 2015-02, 51,285 miles“I was cruising with the family at 65mph and heard my belts squeel and then stop after 2 or 3 seconds. About 20 seconds later a low coolant light came on and my temp light was blinking. Temp was only around 195 to 205, pretty far from the red. I immediatly pulled over and shut it down. There was a lot of coolant leaking, a large trail followed me off the interstate.”
NHTSA complaint #10508852, filed 2013-04, 42,000 miles“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. …”
NHTSA complaint #10682527, filed 2015-02, 63,421 miles“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. …”
NHTSA complaint #10939285, filed 2017-01, 47,000 miles“Driving on private road and a radiator hose (in front of car) came off causing immediate and rapid purging of coolant on to all 4 tires and me spinning off of the road. Fortunately only into the grass on side of road. Car was flat bedded to mechanic for repairs. Spent several hundred dollars on repairs. Have since spent thousands on additional preventative measures due to mechanics alerting me that the hoses in the rear will let go and cause coolant loss. Had to pay for engine removal and welding of lines for my safety. Costs was well over $3000.”
NHTSA complaint #10510138, filed 2013-04, 30,124 milesRelated service bulletins
- 11037816Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils. Note that this bulletin covers all models back to model year 1984, for which C40 engine oils are…
- 11037813Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils. Note that the bulletin covers all models back to model year 1984, for which C20 engine oils are…
- 11037812Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils. Note that the bulletin includes all models back to model year 1984, for which C30 engine oils are…
- 11037808Sep 22, 2026Manufacturer's Certificate for Overview of Approved Porsche A40 Engine Oils. Note that this bulletin covers all vehicles from model year 1997 to 2020, for which A40 engine oils…
- 11035916Jul 22, 2026Allocation of Approved Engine Oils MY 2027 (13/26)
- 11034777Jun 25, 2026Overview of Approved Porsche C20 Engine Oils (20/26)
- 11034776Jun 25, 2026Overview of Approved Porsche C30 Engine Oils (19/26)
- 11034775Jun 25, 2026Overview of Approved Porsche C40 Engine Oils (21/26)
- 11034774Jun 25, 2026Overview of Approved Porsche A40 Engine Oils (15/26)
- 11034773Jun 25, 2026Overview of Approved Porsche C30 Engine Oils (16/26)
Engine: other model years
Other parts of the 2003 Porsche 911 Turbo
← All problems reported for the 2003 Porsche 911 Turbo
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