Quote:
Originally Posted by reb03
With regard to coolant temps I think there may an issue of excess coolant temps in the Steptronic cars. Attached are two coolant charts (from another thread back in early June), the first of an E90 335i Step paddle shifter and the second of an E92 335i manual. This data was collected on the same day at the same driving school in southern CA. Two things jump right out when you compare the two charts. First the E90 step coolant runs MUCH hotter and second it's clear where the E90 step goes into limp mode at around 16mins. The E90 driver pulled into the pits and then went back out on track driving at 80% to avoid another limp mode in the session. Both cars had the oil cooler.
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Interesting stuff...makes me glad (once again) that I got the 6-speed.
However it calls into question that video from Car and Driver in which the 6-speed went into limp home because of heat. That even happened at Streets of Willow which is not really a motor track like big willow.
Any thoughts?