2020 GLC 43 Squeaking Sound When Changing Dynamic Selection Mode
I have a 2020 GLC 43 coupe. Periodically, when I change the drive mode (after starting the car in the garage) from comfort (default mode) to sport or individual mode I hear a squeak sound. Also, when the outside temperature is warm or hot, I can reproduce the squeak sound if I rapidly tap on the accelerator pedal. Has anyone else experienced this? I read on a C43 thread that it might be the butterfly actuator on the exhaust system that needs to be lubricated. (I have the optional exhaust sound option with the button on the center console).
Thanks in advance.



