Xc40 b3 2025 make “Tac” noise.
I start the car and go outside to close the garage door. When I come back to the car, I hear a ‘clack’ from my xc40 25.
Car is on but parked.
Then I drive the car, and sometimes, after braking, I hear another ‘clack’ or “ stac”.
The AC being on or off is irrelevant.
Also, it doesn’t matter whether the car’s system turns off or stays on when I brake. The noise appears randomly, usually when I press the accelerator pedal.
Anyone?