Anyone get a creeking or squeeking from the Right Rear under the car when driving up a driveway on an angle?

What could it be?

 

These are some of the symptoms my '04 350 exhibited, plus clicking just over a year ago and now the whole car has become much worse.

Definitely suggest take it down to the dealer and get it looked. Good luck.

 

Stock or modded suspension? If you do a search on "Tein squeaking" or "Flex noise" you'll pull up a bunch of threads on coilovers squeaking and solutions for them (which generally involve as little as spraying a little silicone spray around the nuts and bolts in the fender to as much as removing the coilover and putting grease around the washers). If you're on stock suspension, you could try the silicone spray if that's where the squeaking is coming from. Other than that, I can't think of anything else (other than taking it to a dealer if you wanna bring it in).

 

stock struts, Hotchkis Springs. Sounds like something just needs to be Lubed