Clunk from the Frunk

[steven friel]

I have a month old Model S60D. Ive noticed a couple of time when sitting in the car when its charging that i have heard a clunk/thump from the front of the car. usually after having been sat there for ten mins or so .
Today however at a red traffic light i felt/heard it again.

anyone got any idea what I'm hearing

 

[IMF2000]

Relays?

 

[BluestarE3]

Junk in the frunk?

 

[wattsup]

I noticed this too, several times while sitting the car while supercharging.

Almost sounds like somebody slamming a car door or trunk outside nearby. Just a dull "thunk" seemingly "in the distance", but also felt like it came from the front of my car (where no other cars were near).

Possibly solenoids and valves (routing coolant) going "chunka-chunka" during the charge cycle?