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 <email@example.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