These switches are from my 2002 allroad. They work perfectly. The surface condition of the buttons is very fine, with only minor surface scratches. If your steering wheel switches have some white plastic showing because the black soft-touch coating has worn away, here is an excellent opportunity to replace them.
You can purchase one or both switch modules as needed. Shipping is included in the $36 price of each switch module.
The switch part numbers are "8E0 951 527 L" for the left side, and "8E0 951 527 A R" for the right side. The switches are "soul" black so the 5PR designation would also apply. The switches will fit the four spoke MFSW from a '01 thru '05 allroad, A6 C5, and A4 B5.
Note the rear electrical connectors as shown in the pictures. Double check that your car has the same connection scheme. Some steering wheel radio control switches (e.g., 4B0951527A and 4B0951527) use a different electrical connection scheme.