cold weather, cold start noise

[andyho123]

I have a 2010 135i with dci, jb4, dp, and AA bov.

Recently, it has been stupidly cold in Texas. During cold start, there is this weird sequential squeaky noise coming from or near the BOV (i cant tell) or the steering fluid reservoir. I don't know if its a belt squeaking or it is from the bov.

After the car warmed up, it goes away. Can someone chime in on this?

[F80_M3llow]

It's your bov.

[andyho123]

but why does it make that noise? the valve is fully open at idel

[Fed P]

At one point I started getting a squeak, especially when cold, and in my case it was the accessory belt - after changing it, it went away. Good luck!

[andyho123]

You can hear the squeaking clearly. I hope it's the belt

[andyho123]

this was cold start only. everything returns to normal afterward

[e36addict]

Hey another Dallas 1er! ... sounds like the belt to me.. mine makes a similar noise but not as loud, and pretty much at all temps.

[andyho123]

hahaha whats up man. should meet up sometimes. yeah man i think it seems louder in the video. do you suggest change both the belt and the pulleys?

[e36addict]

Yea I'd put a belt on it.. I know the noise on mine seems to come from the compressor but yours is a bit louder.. May be worth throwing some pullies on there too.

[foghat]

Not sure what it could be. But does not sound like your typically squeaky belt.