Audi A4 Owners & Service Manuals

Audi A4: General, Technical data

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 Safety Precautions

Safety Precautions when Working on Vehicles with Start/Stop System There is a risk of injury due to the engine starting unexpectedly. The engine can start unexpectedly on vehicles with an activated

 Additional Safety Precautions for Airbag Control Module

  WARNING After every removal and installation of the Airbag Control Module -J234-, the "inertial sensor basic setting" must be performed. If the Airbag Control Module -J234- is replaced w

 Restraint System Pyrotechnic, Electric and Mechanical Components, Replacing After a Collision

Special tools and workshop equipment required Vehicle Diagnostic Tester The airbag control module must be replaced If the display "Control module faulty" appears after checking the DTC memory A

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 Software update

Introduction Applies to: vehicles with software update You can update your vehicle's software. The functions depend on the country and vehicle equipment: Update through the online system update Map material update for the navigation system Have the software update performed by an authorized Aud

 Overview - Telephone

Overview - Telephone, Bluetooth Hands-Free Calling, 9ZX The Information Electronics Control Module 1 -J794- is installed with the Microphone Unit In Front Roof Module -R164- and is exclusively for hands-free calling. The connection to the Cellular Telephone -R54- takes place via Bluetooth. The B

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