Loud fan noise on Ludacris mode

[Mike1992]

Hi guys I’m new to the forums and new to Tesla needed some help

I own a 2016 p90d and everytime I switch the car to ludicrous or ludicrous plus there is a really loud fan noise present. This doesn’t happen after driving or anything it immediately kicks on fans once I switch to that mode is this normal?

 

[zanary]

This is normal for Ludicrous/Max Battery becuase it needs to heat up the battery to the correct temperature.

 

[luckyj]

For just Ludicrous mode, I'm not sure I've ever heard the fan come on.

For Ludicrous + (max battery), yes the fan comes on for me sometimes, seems to depend on various conditions.