http://m.youtube.com/watch?v=BbtZl0DCbpc&feature=plcp
Can someone point me in the right direction? This sound appeared after I changed the thermostat, flushed and changed the coolant from BMW blue to red longlife. Can't really see the connection here. I did give the 32 mm fan nut a couple of firm knocks to change the fan and get better acess to work and change the hoses. Did not come loose so I decided not to deal with this for now.
Thought it was worth a try to upload the video here, hoping someone recognizes this noise?
Have been searching the forum and have a feeling it could be the belt tensioners.Could it be soaking it all when flushing? Or waterpump-bearing? Don't really know, but as I said...it appeared after this job was done! The noise does increase with rpm. Temp is steady 12 o'clock. And warms up much faster with the new thermostat:)
Thank you for any advice!
Thor-Egil 1995 M73
Flushing: