Bluetooth stopped working
 

I've been using bluetooth for last 2 years with many different phones without any problems. Suddenly I can't connect any phone. Actually after about 30 sec phone (Nokia E51 in this case but also tried other phones) shows there is connected but on LCD (Mk4) "searching" message is displayed all the time. After about 2 min phone is disconnected from car than after 30 sec is connected again without any changes on LCD.
I tried new pairing, but this procedure is also not correct. After pressing bluetooth pairing button than power on (key1 pos) "bluetooth pairing" message showing up only for 2-3sec than "searching" appears continuosly.