vitovee Posted September 29, 2009 Share Posted September 29, 2009 At least in my experience. 2006 GS 300 (bought new in Sept 2005) & just replaced battery for the 3rd time (i.e. now on its 4th battery). South Florida vehicle with 86,000 turnpike miles (traffic usually freely flowing 70-75 mph), wife's commuting car. It is garaged at home and at work. The second battery died at 49,997 miles so at least warranty covered replacement twice! Dealer attributed short lifespan to the heat here and computer complexity of the car , but my 2004 BMW 530i battery lasted 4 years. Quote Link to comment Share on other sites More sharing options...
GuyTelefunken Posted September 29, 2009 Share Posted September 29, 2009 I would suggest you have the charging system thoroughly checked. I agree the battery should last longer than that. It is possible you have a problem with your alternator that is causing the battery to die prematurely. Quote Link to comment Share on other sites More sharing options...
eatingupblacktop Posted September 30, 2009 Share Posted September 30, 2009 I agree. Load test your alt. Quote Link to comment Share on other sites More sharing options...
steviej Posted September 30, 2009 Share Posted September 30, 2009 something is draining the battery (parasitic) or the battery is not getting a good charge. Take it to Autozone and they will load test the charging system for free. steviej Quote Link to comment Share on other sites More sharing options...
MRDS300 Posted October 4, 2009 Share Posted October 4, 2009 I have had my GS300 for 4 years and i never have had to change the battery Quote Link to comment Share on other sites More sharing options...
vdavid Posted October 10, 2009 Share Posted October 10, 2009 I also have an '06 GS300 and I live in Las Vegas. There aren't many places in the world much hotter, but my original battery lasted 52 months. I travel extensively and even when leaving the car unattended for 4 weeks at a time, it always started right up. I agree that there must be something wrong with your charging system or you've got a parasitic loss. Quote Link to comment Share on other sites More sharing options...
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