RE: slight ticking from motor at low rpms
 

Mine does prolly the same things as yours. I have an F4 and been told its pretty normal to hear some chattering. Also could be coming from the cam chain tensioner. Which isnt necessarily a bad thing either. Will need to be replaced but you will know when it does. Will become really loud. Hope this helps

RE: slight ticking from motor at low rpms
 

How many miles are on you f4 and has it been services as per the factory recommendations?

RE: slight ticking from motor at low rpms
 

5000kms and yes its due for its first service