Which Porsche 997 Years You Should Avoid and Why?

The Porsche 997 is better recognized as the Porsche 911, Porsche Carrera.

German automobile manufacturer Porsche AG first introduced its first Porsche 911 sports vehicle model in 1969. But the manufacturer started using Porsche 997 as the internal designation for Porsche 911 between 2004 and 2013. 

Therefore, all the Porche 911 sold during this period are considered the Porche 997, and even in this shorter timeline, consumers reported some years’ Porche 911 or 997 models to be problematic.

Read the following article to know which years Porsche 997 models are troublesome, what are the most common problems of them, and which years Porsche 997 are safe.

Porsche 997 Years To Avoid (List of Years)

Porche 997 was referred to as the better-modified version of the Porche 911 model. Porsche AG claims to revise the engine as well as make significant interior and exterior styling while bringing Porche 997 into the market as the 2005 Porche 911 model.

However, that does not mean these models are entirely faultless. Also, based on numerous consumer reports, there are few Porche 997 models to consider as problematic.

What Are The Worst Years Of Porsche 997?

According to the PORSCHE 997 MODEL YEAR COMPARISON report, Porche 997 sports vehicles’ 2004, 2005, 2006, 2009, 2011, and 2012 released yearsare considered problematic. But if you ask which one is the worst, the answer is 2009 Porche.

Let’s understand the real reasons behind considering those models as the worst and why one should avoid considering them-

2004 Porsche 997:

According to the 2004 PORSCHE 911 (997) PROBLEMS & COMPLAINTS representation published on the Carcomplaints.com website, there are 10 complaints reported against these models.

Users mainly encountered one significant problem, and that was engine failure.

However, there is no record of any recalls issued by the brand itself or the National Highway Traffic Safety Administration (NHTSA).

2005 Porsche 997:

According to the 2005 PORSCHE 911 (997) PROBLEMS & COMPLAINTS representation, this year’s Porche vehicle models obtained five complaints.

Most consumers mainly complained about the vehicle’s engine, where they reported noticing scored bores or complete engine failure.
But no recall has been issued by National Highway Traffic Safety Administration (NHTSA) or the brand yet.

2006 Porsche 997:

This particular year’s Porche vehicles luckily got 1 complaint reported by the consumers and based on the 2006 PORSCHE 911 (997) PROBLEMS & COMPLAINTS representation, that was again against the vehicle’s engine.

This year’s Porche user reported that the IMS shaft bearing loosened and ruined the engine.

As usual, NHTSA has not officially issued any recall against the 2004 Porche models.

2009 Porsche 997:

According to the 2009 PORSCHE 911 (997) PROBLEMS & COMPLAINTS detailed report, this year’s Porche vehicles got four complaints reported by the consumers.
Consumers mainly stated engine, cooling system, and window or windshield problems. Also, the most highlighted symptoms are engine stalling, leaking hoses, and excess oil consumption.

However, NHTSA has not officially issued any recall against this year’s models either.

2011 Porsche 997:

According to the 2011 PORSCHE 911 (997) PROBLEMS & COMPLAINTS published on the Carcomplaints.com, this year’s Porche got only One complaint reported by the consumers and, that again was against the vehicle’s engine.
The user reported premature battery failure, but no recall has been issued by the National Highway Traffic Safety Administration (NHTSA) yet.

2012 Porsche 997:

This year’s models of Porche got four complaints reported by the consumers, based on the 2012 PORSCHE 911 (997) PROBLEMS & COMPLAINTS representation. These complaints mainly stated window or windshield problems, where users noticed power window not working or system failure. However, NHTSA has not officially issued any recalls for this year’s models too.

What Makes These Porsche 997 Years Worth Avoiding?

Thus, let’s see what are those most common trouble that one should be well aware of while owning or using a Porche 997-

1. Porche 997’s IMS Bearing Failure:

If you have read my previous discussion on the problematic Porche years models and why they are better to be ignored, you must have already noticed that users reported encountering this particular issue.

It was highly disappointing since the fixing is not cheap, and no one wishes to deal with such expensive servicing for their newly brought vehicle.

When the IMS bearing loosens or fails, it effectively causes catastrophic engine failure, and this issue was significantly visible in the Porche 997’s earliest first-generation models.

Especially in the initial 2006 Porche models, you will experience this problem.

However, the manufacturer has improvised this feature by inserting a stronger factory-fitted IMS bearing, and this problem is no longer available in later released 2006, 2007, and in other later released years.

2. Porche 997’s Scoring Bores Issue:

Another major engine issue is the scoring bores, which commonly occur in Porche 997 vehicles.

According to the user’s real-time experience mentioned on the Carcomplaints website, the dreaded bore scoring issue eventually causing severe damage to the vehicle engine or complete engine failure is well known among the Porche user’s community.

This issue is mainly significantly available in Porche 997’s 2005 model.

But unfortunately, some dealers do not share the information during the sale, and this particular failure ultimately causes the user to replace the entire engine.

According to one user, this replacement can cause someone to spend a minimum of £15,000, which is definitely a costly servicing task.

3. Porche 997’s Cooling System & Window Failure:

Besides engine-related problems or failures, several users have also complained about Porche 997’s defective cooling system and window.

On the Carcomplaints website, Users have reported noticing an enormous wet spot under their car after returning from a short trip, and when they investigated further found that the cooling fluid is gone.

Even after filling up the fluid, users noticed all fluid draining away through the leaked hoses and had to visit the repair shop to fix it. Also, this problem mainly arises in Porche 2009 models.

Another major issue that users experience with the Porche 2009 vehicle, is the window open or close failure.

One user mentioned in the Carcomplaints that the small rear windows of their Porche vehicle tend to stay either open or close when the top is opened or closed.

Even in some cases, both windows fail at the same time, and the only solution is replacing the window set, which can approximately cost nearly $1400.

Which Porsche 997 Models are Safe to Buy Used? 

According to the PORSCHE 997 MODEL YEAR COMPARISON representation published on the CarComplaints.com, you can count on the following released years of the Porche series since there are no complaints reported against these models- 

  • 2007 Porsche 997 (911)
  • 2008 Porsche 997 (911)
  • 2010 Porsche 997 (911)
  • 2013 Porsche 997 (911)

Besides that, if you are looking for better used Porche 911 models, you can go for the following mentioned options too-

  • 1969 Porsche 911
  • 1990 -2000 Porsche 911
  • 2003 Porsche 911
  • 2015 -2019 Porsche 911


If you are looking for decent quality used sports car, Porche 997 models are an incredible option.

But before you choose between Porche model years, first eliminate the model years, which I have listed as the most problematic ones in today’s article, and then consider your options.