Harming Warranty when lubing the funky siwtch on Formula 2.5x?

Hi,

first of all: sorry for my bad english!

my funky switch on my formula 2.5x makes weird noises wehen switching down.

it makes a squeaking noise (in Germany we say knarzen) at the first input, then it becomes quiet. after some time in neutral position the switch squeakes again when i switch down.

i asked the support, but after 2-3 Weeks i received the standart awnser. "take a video and we make a rma..."

i don´t want to make an rma yet, becouse i am afraid i am not seeing my wheel again :)

so:

can i just lube the switch witch mechanical keyboard lube?

will it harm the warranty?

maybe some Fanatec Dude can awnser this question?