This post may help. Check out what Steve Brotherton(Stevebfl) had to say about this valve and warm places...ie....SoCal.

http://www.peachparts.com/shopforum/showthread.php?threadid=12020&highlight=cold+start+valve

__________________
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"