That's what I was afraid of.  I may put a light on the connection, see if the 
PBU is calling for heat when I've dialed in AC, make sure the issue really is 
the valve.

Looks like a rebuilt PBU is about $150, that's less than a new valve from the 
dealer.
-- 
Max Dillon
Charleston SC
'87 300TD
'95 E300

On July 25, 2015 5:41:39 PM EDT, Peter Frederick via Mercedes 
<mercedes@okiebenz.com> wrote:
>As far as I know, there is no insert in the W124 monovalve, I've had  
>to replace the entire thing when they fail.  Three so far...
>
>Peter
>
>

_______________________________________
http://www.okiebenz.com

To search list archives http://www.okiebenz.com/archive/

To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com

Reply via email to