Hey everyone. Thanks for taking the time to check out this post. I am posting this for a friend of mine who actually owns the car. I'm just trying to help him out. I usually perform the maintenance on this car for him, but unfortunately he lives a good distance from me, so I am unable to physically look the car over. Anyway, he states that there is a "Loud"
ticking noise coming from the engine compartment area. He let me hear it over the phone but its hard to make out other than an exhaust leak. The car has over 190k on the clock. Anyway, he was told that it could be a rocker arm thats broken. Has anyone had this problem or seen this problem on this model year BMW? He was also told that in order to replace a bad rocker arm that the head has to be removed. Any truth to this? I have seen the valve train on this car before and he has shaft-mounted rocker arms. This is the only reason I can think of without looking at the manual as to why the head would have to be removed. Does anyone have any ideas or suggestions about this? Any other common problems with this year vehicle related to the engine? I would appreciate any information that you can provide on this situation. Trying to save this guy from having to spend a bunch of money on this for no reason. Thanks in advance for any help. Feel free to email me if you don't want to respond here.