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      01-31-2020, 02:31 AM   #6
Helmsman
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Drives: 2011 AW E90 M3 ZCP
Join Date: Mar 2014
Location: Stockholm, Sweden

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Quote:
Originally Posted by ItsGary View Post
Could be used for cooling also as our cars use a mechanical water pump, but the Aux Pump is electric which can be useful to cool down when the car is off.
Yes, maybe thats the case when the fan is still on after engine turned off, fan wouldn't have much to make noise over if the coolant wasn't moving, thanks.

Another "use case" - even without the Rest function - could be during stop/start, maybe. Coded this our long ago so in my case do diff.

Thanks again though. My fan rarely stays on after turn off (Nordic climat, rarely over 25C Summer...), but will definitely keep this in mind as possible reason to get a new pump.

Cheers,
Nik
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