Moo Valve ?? What Does It Do And Is Mine Normal

Dannyb6467

Senior Member
VIP Member
T6 Legend
I noticed a while ago when I'm at standstill and ticking over in "P" there in a moo noise about every 8 seconds.

What is this noise and is it normal?

Cheers
 
“Moo valve”... Brilliant!!

Cant say I've heard a noise so cant help there sorry.

Which engine?

Tried listening under bonnet to locate the noise?
 
Ha ha, the moo valve is mentioned elsewhere in the forum but can't see any information.
It's a 204 4motion DSG
Not got my head under the bonnet yet as I wouldn't know what I'm looking at anyway.
 
Never heard of it on a T6 but my lad's T5 does the 'moo' after every run... thats why he calls her 'Daisy' :)
 
Its still under warranty. However, all the information here suggests its a noise once the engine is switched off. Mine only does it on tick over.
Im immobile at the moment having had a bit of an operation yesterday but ill run the van asap and try to record the sound. It literally is like a cow moo'ing about every 8 - 10 seconds.
 
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