A6 Quattro Sedan V8-4.2L (BVJ) (2007)
Evaporator Drain Tube: Service and Repair
Condensation Drain Hose
‹› This vehicle is equipped with 2 condensate drains (left and right on the air conditioner or center tunnel).
‹› If there is no door on the condensed water hose outlet opening - A -, the condensed water runs over the rubber lips - D -.
Checking
‹› Always check both condensation water drains.
‹› Disconnect condensation water drain hose - A - and check the following:
-
Check the gap between the lower floor panel - F - and the insulation mat - G - installed in the center tunnel. There must be enough space for
condensation to exit from the condensation drain - D -.
-
Check condensation the water drain of the A/C unit - E - for contaminants (e.g. using a piece of wire) and clean it if necessary.
-
Check the installation position of the floor mat, it must not constrict (compress) the cross section of the condensation water drain hose - A -.
‹› For complaints of moisture in passenger compartment, check the following components as well as condensation water drains:
-
Water drain openings in plenum chamber => [ Plenum Chamber Water Drain, Checking, Cleaning ] See: Testing and Inspection/Component Tests
and General Diagnostics/Plenum Chamber Water Drain, Checking, Cleaning.
-
Water drain from the air intake unit => [ Plenum Chamber Water Drain, Checking, Cleaning ] See: Testing and Inspection/Component Tests and
General Diagnostics/Plenum Chamber Water Drain, Checking, Cleaning.