2003 Porsche 911 Problems
- Complaints
- 9filed with NHTSA
- Median mileage
- 65,500miles, 6 complaints with mileage
- Recalls
- 1campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
Sources: NHTSA records for the 2003 Porsche 911 (complaints, recalls, investigations). Report an error
NHTSA recorded 9 consumer complaints for the 2003 Porsche 911. The part named most often is engine cooling, with 3 complaints (33% of the total), followed by other or unknown (3) and electrical system (1). 6 of the complaints include a mileage, and 17% of those were filed for vehicles with under 50,000 miles; the median is 65,500 miles. NHTSA lists 1 recall campaign and 373 technical service bulletins for this model year. Engine cooling complaints overlap with 41 technical service bulletins filed under the same part. Other or unknown complaints overlap with 97 technical service bulletins filed under the same part.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Engine cooling3 33%
- Other or unknown3 33%
- Electrical system1 11%
- Engine1 11%
- Equipment1 11%
- Seats1 11%
- Wheels1 11%
Example complaints
Engine cooling: “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.”
NHTSA complaint #10515138, filed 2013-06, 52,000 milesOther or unknown: “Odometer reading on the cluster and title do not match what the car actually has. I purchased the car from mullins ford of vero beach. Found many problems with the car and found that the mileage true mileage was actually 13,000 miles more. Spoke to two managers and neither of them wanted to do anything about it. I really loved the car and wanted to keep it but for someone to lie and do something fraudulent is not a pleasure I wanted to be apart so I informed them of it and made them refund my money. …”
NHTSA complaint #11302661, filed 2020-01, 75,894 milesEngine: “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.”
NHTSA complaint #10586974, filed 2014-05, 62,000 milesMileage when problems were reported
17% of the 6 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 52,000 and 75,894 miles.
Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Recalls and investigations
- 04V070000Feb 18, 2004SeatsCovers: Porsche 911 2003, 911 Carrera 2003, 911 Carrera Cabriolet 2003 +4 more
Certain passenger vehicles fitted with front seat backs, which do not meet porsche's strength standards.
Recall details for the 2003 Porsche 911 → · Check a VIN at nhtsa.gov/recalls
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 373 on record; the latest 10 are shown.
- 11037873Sep 29, 2026Electrical system, Other or unknown. Parts Information for Parts Withdrawal - Radio & Satellite Radio Receiver. Note that part 91164559100 is also applicable to the following models not in the product list: 911 (1970-1989), 914…
- 11037816Sep 22, 2026Transmission and drivetrain, Engine. Manufacturer'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 allocated.
- 11037813Sep 22, 2026Engine, Transmission and drivetrain. Manufacturer'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 allocated.
- 11037812Sep 22, 2026Transmission and drivetrain, Engine. Manufacturer'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 allocated.
- 11037808Sep 22, 2026Engine, Transmission and drivetrain. Manufacturer'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 are assigned. Model…
- 11037868Sep 14, 2026Wheels, Suspension, Steering. Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available
- 11037795Sep 1, 2026Electrical system. Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment
- 11037085Aug 28, 2026Other or unknown. Special Tools and Equipment Information for Diagnostic Equipment Standards for all USA Porsche Centers
- 11037083Aug 17, 2026Suspension, Wheels, Steering. Special Tools and Equipment Information for alignment machines - Q2 2026 Software Spec Update Available
- 11037072Aug 14, 2026Other or unknown. Product Knowledge for Model Type Designations
Other model years of the Porsche 911
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2024 | 6 | — | 4 | — | 15 | — | Too new |
| 2022 | 10 | — | 4 | — | 20 | — | Not enough data |
| 2021 | 5 | 623 | 6 | — | 20 | — | Not enough data |
| 2020 | 5 | — | 2 | — | — | — | Not enough data |
| 2015 | 8 | 20,515 | 1 | — | 22 | — | Not enough data |
| 2013 | 6 | 17,000 | 0 | — | 19 | — | Not enough data |
| 2012 | 5 | 25,500 | 1 | — | 21 | — | Not enough data |
| 2004 | 8 | 17,042 | 0 | — | — | — | Not enough data |
| 2003 | 9 | 65,500 | 1 | — | — | — | Not enough data |
| 2002 | 9 | 52,400 | 0 | — | 19 | — | Not enough data |
| 2001 | 8 | 39,000 | 0 | — | — | — | Not enough data |
| 2000 | 6 | 30,500 | 1 | — | — | — | Not enough data |
| 1999 | 8 | 47,863 | 1 | — | — | — | Not enough data |
| 1996 | 6 | — | 3 | — | 18 | — | Not enough data |
| 1995 | 12 | 110,500 | 0 | — | 18 | — | Not enough data |
Frequently asked questions
How many NHTSA complaints does the 2003 Porsche 911 have?
NHTSA recorded 9 consumer complaints for the 2003 Porsche 911 as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2003 Porsche 911 is reported most often?
Engine cooling is named most often, in 3 complaints (33% of the total), followed by other or unknown with 3.
Has the 2003 Porsche 911 been recalled?
NHTSA lists 1 recall campaign for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
At what mileage are problems with the 2003 Porsche 911 reported?
Among the 6 complaints that include a mileage, the median is 65,500 miles and the middle half falls between 52,000 and 75,894 miles; 17% were filed for vehicles with under 50,000 miles.
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.
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.