The orifice tube is in the inlet of the evaporator. The accumulator, which catches the excess liquid freon, is probably up front. Orifice tube systems flood the evaporator under some conditions, so there must be a tank to catch the liquid rather than slug it into the compressor. Freeze protection is provided by a pressure switch on the accumulator, which also acts as a low pressure safety switch.
To change the orifice tube, you must remove the inlet line at the evaporator, the tube will be an insert. A real PITA to remove, too. I agree, you should check the oil in the system. Usually the best way is to remove and empty the compressor, then refill with the correct amount. Peter -----Original Message----- >From: MG <trainpain2...@yahoo.com> >Sent: Jul 20, 2010 8:44 AM >To: Mercedes Discussion List <mercedes@okiebenz.com> >Subject: Re: [MBZ] I buy a new AC machine, now have AC problems > >Could the machine possibly have a lot of oil in the tank and >somehow added a lot of oil into the system with the freon? Don't >know enough about these machines to know if this is possible. If >that is possible though then even charging with cans now may not >change anything. > >Manfred > > > >Date: Tue, 20 Jul 2010 00:31:23 -0500 >From: "Kaleb C. Striplin" <ka...@striplin.net> >To: Mercedes Discussion List <mercedes@okiebenz.com> >Subject: Re: [MBZ] I buy a new AC machine, now have AC problems > >I might try charging from cans first, and if it still does not work I >will recover that and then pull the system apart and see whats up. > > >_______________________________________ >http://www.okiebenz.com >For new and used parts go to www.okiebenz.com >To search list archives http://www.okiebenz.com/archive/ > >To Unsubscribe or change delivery options go to: >http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
