5th Generation (2005—2011) 911 Problems

This generations ranks 10th out of 17 Porsche generations in reliability and is one of the safer bets out there. Owners have the most complaints about the engine (80%), electrical (20%), and the We've listed some of the most recent complaints below, see them all on CarComplaints.com.

  1. Premature Battery Failure 1 complaints at an average of 4,310 miles in the 2011 Porsche 911.
  2. Stalling 1 complaints at an average of 28,000 miles in the 2009 Porsche 911.
  3. Excessive Oil Consumption 1 complaints at an average of 25,000 miles in the 2009 Porsche 911.

What 911 Year is Most Reliable?

Generations are a good baseline for prediciting reliability, but there will almost always be year-to-year differences. We've calculated a reliability score for each model year within this generation, but we've based that score on how the model year compares to all Porsche model years.

Watch out for the 2009 model year which has the highest PainRank™ score in this generation.

Year Complaints Recalls TSBs PainRank (?)
2011 1 0 0 0.77
2010 0 0 0 0.0
2009 2 0 0 1.24
2008 0 0 0 0.0
2007 0 0 0 0.0
2006 1 0 0 0.46
2005 1 0 2 0.43

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