Hello, guys, i am new in this forum.

I have annoying problem in my volvo s80 2007 2.4d 120kw. Then i am driving my car i hear the high sound from driver side rear. Firstly i thought that it was because of muffler heating protection from the bottom. But then i fasten them, the sound didn't disappear. Next i went to my local service (not original volvo), the service guy told me, that i need to change Four-C- shock absorber (VDN 2230). I bought it and changed. Again, sound didn't disappear. Does any body know, that can be cause for this annoying sound? I tried to record it from salon.