There are 4 stored owner reports matching the engine leading-label group for the 2003 Porsche 911 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 4 of 4 matching reports.
Open the full vehicle complaint log (all categories)VEHICLE'S ENGINE STARTED TO "RATTLE" AT WARM-UP, THEN WOULD GO AWAY, TYPICAL FOR AN IMS FAILURE. ANY LONGER WAIT MAY HAVE RESULTED IN COMPLETE ENGINE FAILURE. *TR
COOLANT FITTING ON ENGINE BLEW OFF ON THE FREEWAY, DUMPING ALL THE COOLANT AND CAUSING A MAJOR TRAFFIC SLOWDOWN. CAR WAS ABLE TO BE REPAIRED BY BONDING (JB WELD) IN THE FITTING INTO THE ENGINE BLOCK. NO ISSUES SINCE. ALSO, THE LEFT FRONT RADIATOR LEAKED AND NEEDED TO BE REPLACED. *TR
I WAS DRIVING MY CAR TO A CHARITY EVENT HOSTED BY A HIGH SCHOOL TENNIS TEAM WHEN I NOTICED STEAM COMING FROM MY ENGINE BAY. ALL MY CARS COOLANT LEAKED OUT INTO THE PARKING LOT AND IT CREATED A VERY LARGE PUDDLE. MY WHEELS WERE COVERED IN COOLANT AND IT CREATED AN UNSAFE DRIVING CONDITION FOR THE PARTICIPANTS BEHIND ME WHO WERE FOLLOW ME INTO THE CAR WAS. AS ALL OF THE COOLANT EVACUATED MY CAR, IT IS A MIRACLE THAT IT DID NOT HAPPEN ON THE FREEWAY WHERE IT COULD HAVE CAUSED AN ACCIDENT. BECAUSE THE CAUSE OF THIS WAS FAULTY COOLANT LINES, MY ALTERNATOR WAS ALSO SHORTED AND NEED TO BE REPLACED, AGAIN, IF THIS HAPPENED ON A LONG TRIP OR ON THE FREEWAY I COULD HAVE BEEN STRANDED. *TR
ENTERED HIGHWAY AND REACHED HIGHWAY SPEED, LOW COOLANT LIGHT APPEARED AND LARGE CLOUD OF SMOKE EXITED THE REAR OF THE CAR. PULLED OVER AND ENGINE BAY SMOKING WITH COOLANT EVERYWHERE INSIDE ENGINE BAY AND OVER REAR OF CAR INCLUDING TIRES. COOLANT HAD COMPLETELY DRAINED DUE TO A GLUED IN FITTING WHICH HAD COME LOOSE. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.