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#1
03-24-2015, 08:46 AM
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E70 Hi RPM Engine Idle with A/C & BMWWHAT APP Code
I've been annoyed with the high rpm idle with the A/C engaged. The X5 feels jerky and changes the low speed dynamics.
In looking through the BMWAPP codes, I notice a CODE to change the high idle to normal with the A/C on. I've asked the dealer, but they said that's the way it was engineered, no idle speed adjustment. (they probably didn't know anyhow) So - the question is: Why is the idle speed so high (900rpm) compared to NO A/C on (650rpm) and what was BMW trying to achieve? More A/C, emission issue? If I change it back, can you think of any ill effects? thanks,
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------------------------ Phast Phil 328i Convert 2013 Ticket me RED. sometimes my wife lets me drive it LOL  Tic'ed every option except Cold Weather PKG (we are in FL).X5 2009 3.0 XDrive, Premium, Sat, ipod, Silver/Gray Previous BMW's: X5 2004 3.0 325e 1987 ("e" stood for exceptionally slow) R1150 2001 
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