CLIMATRONIC A/C System Components, Checking And Adjusting
WARNING: This page is about a different car, the 2014 Volkswagen Jetta, 2013 Volkswagen Jetta, 2012 Volkswagen Jetta, 2011 Volkswagen Jetta, and 2010 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
Select "Guided Fault Finding" on the Vehicle Diagnosis, Testing and Information System VAS 5051B
After all control modules have been interrogated:
-- Press "Go to" button
-- Select "Function/component selection"
-- Select "Body"
-- "Heating, Ventilation and Air Conditioning (Repair Group 01; 80 to 87)".
-- Select "01 - On Board Diagnostic (OBD) capable systems"
-- Select "Climatronic" or "Climatic"
-- Select "Functions"
-- "Basic setting"
-- "Code Climatronic control module".
-- "Check coolant output"
-- "Read measured value block"