Monday, December 15, 2008

BMW acknowledges N54 engine turbo lag, releases software update

In an effort to address specific noise concerns, BMW in the United States updated the turbocharged engine software on 335i/xi and 535i/xi models built from June 2006 through March 2008. However, the updated software caused a small amount of increased turbocharger lag under certain circumstances, which BMW confirmed is noticeable and now plans to address by releasing a new update. Release of the new software to restore the original turbocharger response is planned for January 2009, and it will be available for vehicles produced from September 2007 through March 2008 when they are brought to an authorized BMW center for a repair that requires a programming update.



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