Function description

WARNING: This page is about a different car, the 2004 Audi S4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Function switches/buttons integrated into the multi-function steering wheel allow the driver to safely operate the radio, telephone and Tiptronic controls (models equipped with automatic transmission). In addition, the steering wheel is electrically heated.

Integrated electronics the steering wheel regulate the steering wheel heating, transmission of function switch/button operations to the vehicle CAN-Bus network and dimming (illumination) of the function buttons.

The control module for the multi-function steering wheel controls radio, radio/navigation, telephone, instrument cluster, steering wheel heating and Tiptronic (automatic transmission) functions.

The center display in the instrument cluster shows the currently selected radio channel, and when the telephone is being used, the telephone number being called (from the telephone memory). The display also indicates if either the radio plays a cassette tape (display shows: "TAPE < >", or if the CD changer is in operation (display shows: "CD 02" and the CD track number being played.

The multi-function steering wheel is a part of the overall system "steering column switch module" and sends data to the Steering Column Electronic Systems Control Module - J527-.