Yes, take it to the DEALER
Of course the obviously intelligent answer is not to putz around with a DIY project that is covered by your 4-year maintenance contract.
If you putz around with it and you screw something up then you can be subject to voiding your warranty and having to really fix things up. The idiocy of people who think they know what they are doing but do not really know much AND who encourage other people to ignore their maintenance perks is really poor behavior.
It is amazing how people discourage others from getting the service they have paid for.
Makes you wonder about motivation.