New 2009 2010 BMW Z4 - ZPOST - View Single Post - Hard Acceleration "Warble" with ESS Stage II

integraworks · 07-30-2012, 10:45 PM

Update II. Last week I pulled the ESS Tune out and uploaded the OEM as I had to take the car in for annual low Km service. My dealer is a 2.5 hour drive from my home so I had lots of time to test and play. It was a very hot and humid day and I was running 94 Octane down and 91 Octane back home. No Discernable 'warble' in the power or tone, none in normal mode and none in sport mode.

This leads me to believe that something may be odd with the ESS Tune that I have. Why the problem just became noticeable this year and not last is beyond me. Roman; is there any way we can figure this out?

Thanks.

07-30-2012, 10:45 PM	#11
integraworks Private 17 Rep 88 Posts Drives: 2010 Z4 s35i Join Date: Feb 2011 Location: Ontario iTrader: (0)	Update II. Last week I pulled the ESS Tune out and uploaded the OEM as I had to take the car in for annual low Km service. My dealer is a 2.5 hour drive from my home so I had lots of time to test and play. It was a very hot and humid day and I was running 94 Octane down and 91 Octane back home. No Discernable 'warble' in the power or tone, none in normal mode and none in sport mode. This leads me to believe that something may be odd with the ESS Tune that I have. Why the problem just became noticeable this year and not last is beyond me. Roman; is there any way we can figure this out? Thanks.
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