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Perhaps Not....(more) (archive)

[ Follow Ups ] [ 5-series (E39) Message Board ] [ Msg. Board FAQ ]

Posted by Alan C. on December 09, 1999 at 07:12:45:

In Reply to: Re: Does our BMW Run faster when Heater is fully o posted by arch540 on December 09, 1999 at 02:22:48:

I can't speak for the heater, but at a BMW 'Ultimate Driving Experience' the pro told us not to worry about the air conditioning during the races. Apparently when you put peak demand on the engine (like flooring it), the computer switches off the A/C until the engine is meeting demand. I saw this during the races - the A/C cuts off and returns automatically at the right moment.

I would guess the heating would be controlled similarly. This isn't to imply one would literally race with them on, but it appears that the engine management system is clever.

Alan

: NO, i think it is the opposite in fact. when the heater is on, it takes energy away from the alternator. this is why alot of race prepared street legal cars dont have heaters (beside loosing weight)so, when you are on the line, ready to go, remember to turn your air con off.




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