Audi A4 Owners & Service Manuals

Audi A4: Electrical System

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 Communication

 Infotainment System

 Overview - Infotainment System

Overview - Infotainment System, MMI Radio Plus, 18E Information Electronics Control Module 1 -J794- with integrated CD player/SD card reader in the glove compartment Multimedia System Control Head

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 Quick-Release Connections on Refrigerant Lines

  WARNING The quick-release coupling connectors may be unlocked and opened only if the refrigerant circuit is empty.   Note This illustration shows the quick-coupling connection with a refrigerant pipe with an inner heat exchanger that is installed in the Audi A4 from MY 2008 and

 Overview - Subframe

Subframe   Caution There is a risk of damaging the threads on the subframe threaded connection to the body. The subframe bolts on the body must not be loosened or tightened with an impact wrench. Always install all bolts by hand for the first few turns. There is a risk of damaging the s

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