Is it normal to hear banging while supercharging?

[classychris92]

I went to a supercharger for the first time and I heard 2-3 bangs coming from the undercarriage and felt like it was under my drivers side. I only added 20% to get me home so those bangs were in between then. Is this something I should bring it in for or is this part of supercharging? I did precondition but was only 8 minutes from the SC so maybe that was the problem? (2018 M3 LR)

 

[father_of_6]

Yeah I really would of rathered it just stay lol. Do you ever feel you seats getting hot even when they are off? Cause it keeps happening to me

Probably I have, but it was most likely residual heat from when they were on, or a warm cabin PLUS a psychological factor of "is it on?" Unlikely the actual seat heater is making heat without the icon displaying it.

 

[Stanwood Steve]

Really?! How long ago did you do it? Was it under warranty and that's why it was free? Cause mines not under warranty anymore but I'm super interested

Since I've had my M3P for over five years now, I'm guessing that it probably was still under warranty. It was a relatively quick fix though (I just waited for it to be completed at the Service Center), and the noise is related to what we call in the aerospace industry as "oil canning" of the battery case as it heats up. Not a problem, but could be rather alarming to car occupants while Supercharging.