riedauer

Just finished changing both EGTs on my 01 Allroad. All error codes are gone and engine runs smooth now. Except for sometimes the vacuum hose connector (see picture) get disconnected after I stop the engine (must have not put it back together correctly). When the connector is loose the brake stops working, engine starts misfiring and you can here the suction noise of the air leak. What holds the top part of the connector in place? Do I need a new one or can I just glue the two pieces together? Anyone has a Part number? Thanks for any info.