Porsche

911 (997)

2005-2011 · Sports Car · 2 engines
Best Engine ⚠️ Caution (2.7)
207 NHTSA Complaints
0 Recalls
4 Fire Reports
7 Crash Reports
Includes data from: 911911 CARRERA911 CARRERA 4911 CARRERA 4 CABRIOLET911 CARRERA CABRIOLET911 CONVERTIBLE911 GT911 GT3911 GT3 RS911 TARGA911 TURBO911 TURBO CABRIOLET
View all 4 generations of the Porsche 911 → 📋 Inspection checklist

NHTSA Safety Ratings About NHTSA ratings

Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No
Overall Not Rated
Frontal Crash
Side Crash
Rollover
ESC: Standard FCW: No LDW: No

Engine Reliability Ratings

M97.70

3.6L 6-cyl Turbo / 480 hp
⚠️ Caution (2.7)
67 complaints 22.3 per year Gasoline
View details

Complaint Breakdown

engine
61
body
8
transmission
4
cooling
4
other
2

Known Issues

Engine Issues (61 complaints)
Est. repair: $2,000–$6,000 (10 reports)
Body/Trim Issues (8 complaints)
Transmission Issues (4 complaints)

9A2 4.0

4.0L 6-cyl / 502 hp
Avoid (1.9)
12 complaints 6.0 per year Gasoline
1 fire report
View details

Complaint Breakdown

engine
11
cooling
2
transmission
1
suspension
1

Known Issues

Engine Issues (11 complaints)
Cooling System Issues (2 complaints)
Transmission Issues (1 complaints)

Vehicle-Level Issues

These issues affect the Porsche 911 regardless of engine variant.

Engine Issues (72 complaints)
engine critical
Body/Trim Issues (8 complaints)
body cosmetic
Transmission Issues (5 complaints)
transmission cosmetic

Alternatives in Sports Car

Frequently Asked Questions

What are the most common 2005-2011 Porsche 911 problems?

The 2005-2011 Porsche 911 has accumulated 207 NHTSA complaints. The most frequently reported problem areas are Engine, Body/Trim, Transmission. As with any used vehicle, a pre-purchase inspection and vehicle history report are recommended.

Which Porsche 911 engine is most reliable?

The 2005-2011 Porsche 911 was offered with 2 engine options. Based on NHTSA complaint data, the 3.6L 6-cyl has the lowest complaint density and is considered the most reliable choice for buyers.

Is the 2005-2011 Porsche 911 a good used car?

The 2005-2011 Porsche 911 can be a solid used car purchase depending on trim, mileage, and maintenance history. With 207 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.

How many NHTSA complaints does the 2005-2011 Porsche 911 have?

The 2005-2011 Porsche 911 has 207 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.

What recalls affect the 2005-2011 Porsche 911?

There are 0 NHTSA recalls affecting some 2005-2011 Porsche 911 vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.

What should I check before buying a used Porsche 911?

Before buying a used Porsche 911, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Engine, Body/Trim, Transmission, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.

What are the NHTSA crash test ratings for the 911?

The 2011 Porsche 911 received an overall N/A-star safety rating from NHTSA. Frontal crash: N/A stars. Side crash: N/A stars. Rollover: N/A stars. Electronic Stability Control: Standard. Forward Collision Warning: No. Lane Departure Warning: No. These ratings are based on standardized crash tests conducted by the National Highway Traffic Safety Administration.

Data from NHTSA federal complaints database. 207 complaints analyzed. Data confidence: high. Last updated: 2026-04-07.

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