99 problems have been reported for the 2005 Nissan 350Z. The following chart shows the 17 most common problems for 2005 Nissan 350Z. The number one most common problem is related to the vehicle's air bags with 32 problems. The second most common problem is related to the vehicle's engine and engine cooling (20 problems).
In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2005 Nissan 350Z in the United States are 27,109 units [1]. If the total number of problems reported by Nissan 350Z owners in the last 17 years is 99, and the age of the vehicle is 17, the PPMY index can then be calculated as
PPMY Index = 99 / 27,109 / 17 * 1000 = 0.21.
For more information, refer to this page: A study of reliability comparison across Nissan 350Z model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2005 Nissan 350Z in 2005.
| Service Year | Number of Problems |
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| 2005 |
When making the decision between buying a new or used Nissan 350Z, the following table can be used to compare the 2005 Nissan 350Z with the Nissan 350Z from other model years. Note that the number of problems reported for the 2005 350Z is 99 while the average number of problems reported for the 7 model years of the Nissan 350Z is 112.