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      11-19-2020, 04:52 PM   #241
Glen e
Retired from BMWNA
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Drives: ‘21 X2 m35i
Join Date: Nov 2020
Location: Fort Lauderdale

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Quote:
Originally Posted by CSBM5 View Post
As C&D showed and the poster above noted, it's not purely a question of turbo lag completely but instead the transmission programming having it in too high of a gear at very slow speed (when it's not in sport transmission mode) and then requiring time to respond with an appropriate gear change all the way to 1st gear. Once that time period has elapsed, then you are dealing with turbo lag since only then can the engine start to generate enough rpm+fuel burn to spin the turbine up in speed.
I agree with this, it’s a transmission/software problem. The same exact thing was exhibited by the early X3’s in 2007 or so, on a rolling stop when you made the right turn , it would start in third gear, which was never enough for your pedal… Sometime later on they made a software change and it was radically reduced.....
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