Multi-function steering wheel

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Before beginning repairs on the electrical system:

Obtain the anti-theft radio security code.
Switch the ignition off.
Disconnect the battery Ground (GND) strap.
After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Repair Information and/or Owner's Manual.

NOTE:

Further measures after reconnecting power supply:

Refer to

24 MULTIPORT FUEL INJECTION (MFI) for 1.8 LITER 4-CYL. 5V TURBO FUEL INJECTION & IGNITION, ENGINE CODE(S): AMB
24 - MULTIPORT FUEL INJECTION (MFI) for 2.0 LITER 4-CYL. 4V TURBO FUEL INJECTION IGNITION, ENGINE CODE(S): BPG, BWT
24 MULTIPORT FUEL INJECTION (MFI) for 3.0 LITER 6-CYL. 5V FUEL INJECTION & IGNITION, ENGINE CODE(S): AVK, BGN
24 - FUEL INJECTION SYSTEM for 3.2 V6 4V FUEL INJECTION IGNITION, ENGINE CODE(S): BKH
24 - MULTIPORT FUEL INJECTION (MFI) for 4.2 LITER V8 4V FUEL INJECTION AND IGNITION, ENGINE CODE(S): BNS
24 MULTIPORT FUEL INJECTION (MFI) for 4.2 LITER V8 5V FUEL INJECTION AND IGNITION, ENGINE CODE(S): BHF