Strange noises getting worse on my 4.4 X5

[DINANM3]

I have a 2004 4.4i and i have problems with weird noises since it waqs new and they are getting worse.

First noise is a wierd whinning noise coming from the engine at partial throttle or when you totally let go of the throttle. you cant hear it when you excelerate more than half throttle. From inside the vehichle it sounds like it is coming from near the firewall. Also it does not do it in nuetral only when driving but it does not sound like the driveline i am almost positive it is coming from the engine.

Second noise. When backing up and turning the wheels near lock it makes a loud clunking noise that sounds like it is coming from somewhere near the front wheels. And also makes this noise if it is thrown into a corner at high speed and you are really pushing it.

I have brought it to the dealer several times for both problems and they first said they cantr duplicate it and know they say they heard it and looked over the entire X5 and could not find anything wrong or anything that would cause it to be dangerous to drive. So they said unless a recall or tsb is sent out about it they are not going to do anything about it.

I think it is Bullsh*t and I am worried something may give way while i am driving. and May cause me to lose control. and besides that i just spent 65K on the X5 and dont think a vehichle with that price tag should have these problems.

IS ANYONE OUT THERE HAVING SIMILAR PROBLEMS AND IF SO CAN YOU HELP ME. BMW NA SUCKS BIG TIME.

Please help.
Thanks