unless you have the 4 digit number you cant...a visit to Audi is the only way
By using the radio preset buttons to insert the 5 digit code. If you do not have the code click the link, sign up at the Honda Owner's Link, and then click get radio code.
Best bet is to go to an Audi/VW dealership, and have them reset the radio by using a VAGCOM. The other option would be to purchase a VAGCOM yourself (http://www.ross-tech.com/). Of course if you have the actual reset code, you can enter it in manually. I can't tell you specifically how to enter it on the Audi radio, since I have an Audi Navigation system, and the controls are different. But it should be a combination of using Volume and Seek (or other keys the would allow for scrolling) to enter in the code.
Your safe code for your radio is unique to the vehicle. You can go have it reset at an Audi dealership for $20-40 dollars.
will not turn on with code provided after battery change
Call any delership parts department with the vin# and they can tell you the radio code
I reset mine by removing the radio fuse and leaving it out for 3 hours before reinserting it. After reinserting the radio fuse, the radio will then accept your code unique to your radio.
You have to call your nearest Audi dealership and address your problem to them. Have your VIN (Vehicle Identification Number) ready. They will ask you for it. If the radio is not originally from the car, you will have to have the serial number to the radio ready. They will after tell you the code via phone.
Howdo i reset my radio security code ml 500 2002
I reset my be removing the radio fuse from the fuse box to the left of the instrumentation panel, and then replacing it 3 hours later. It would then accept the code unique to my radio.
Its possible that maybe your radio has been replaced? So the radio code that you have, might not be the correct one for the radio. I would suggest pulling the radio out and getting the serial number off the radio, then just call a Mercedes dealer and they can get the correct radio code for you from the serial number.
The radio code can be found inside the car manual. Upon opening the first page, look on the left side. A gray card will indicate the required code.