my car is the 98 c240 w202.
recently, i found my headlight switch is having huge resistance when i try to turn it right to switch on either light.
I guess, the switch module may need to be replaced.
however, i wonder how can i replace it?

I found from youtube for reference, but only R129 is available. the video shows the switch knob can be pulled out directly, i've tried mine but it cant.

anyone can help?