: Anyone have VANOS "ticking" sound?

06-02-2010, 04:52 PM
I'm noticing a ticking (actually more of a knocking sound to me) on my E46 M3 more recently, and have been told that it's likely caused by the VANOS system and is somewhat normal and accepted in these cars. Have been referenced to the following TSBm and read some other threads on the topic:


It is most noticeable right around the 3000 rpm range, and seems to be louder in the lower gears, when not accelerating hard. Just wondering if anyone else locally has experienced this, would love to get together and compare sounds to see if what I am hearing in my car matches other folks.


06-13-2010, 12:10 PM
more like marbles? my buddy has it in his E36 i have yet to have it though but it seems to be a normal sound. they tend to do that for some odd reason.