E39 5 series Forum
Hey, like my title says, my engine make a really loud "tikk tikk tikk" sound. My car have a M52TUB28 and runs Castrol Edge Sport 0W-40! Is it the rod bearing? Or Piston rings (I think it called "Piston slap"?)? Is it the timing on the engine (chain jumped once)?
Thanks for all the answer!