I also have this up on tuner but so far no response so..
I replaced some small hoses by Kazim last night (the short ones near the throttlebody/fuelrail)
on taking the car out for a spin, stopped by a parlour to get something, and while the car was idling it started to make a LOUD Rattling Noise in the engine bay.
The Car was in neutral. I immediately shut off the engine and began to check the bay - check the fans to see if they were touching anything - nothing. checked to see if anything was loose - nothing.
Started the car again, same WEIRD LOUD noise. - Fan was not spinning, noise did not seem to be coming from fan, but maybe near the distributor area.
Called Kazim to tell him we passing back - As I put the car in reverse, noise stopped Sad
We went back, checked all the hoses, checked back the fan, - it works properly, left the car idling a while, revved the engine a bit, put it in gear, neutral, park, reverse - no noise. Went back to the spot where it happened and checked to see if something fell out - nothing on the road.
No other symptoms since last night, car worked well on the way home last night, and on the way to work this morning.
I have a sample clip - phone video i took that has the sound on it. take a listen and see if you guys could make out what the sound was:http://www.zshare.net/download/572827432beceb19/
the file is in mp4 format and the clip is very short - you will hear the car start and the weird rattling noise for a couple of seconds. (ran out of memory)
Even though i not hearing it again, i still wanna know what that might have been.