My car (xc60 2012) has a buzzing or humming noise after I stopped the engine. It seems to come from the back of the car, but I can be wrong. Is that normal or something is wrong? It does not do it every time, but 90% of the time. I feel like the noise is getting a little louder now. It is a new vehicle with less than 2 years. I started to notice this noise a year ago. Thanks a lot.

 

you may use a tool to test your engine to see if there is any problem with your engine.