Following a battery change in my 2003 Renault Megane I need to retune the radio.
I have the code and have tried to retune without success.
Now whenever I turn on the radio an error caption eppears.

tripo, February 2011

trip
note the radio does not lockout after a wrong code entry it only doubles the time to wait before
the next retry...if a wrong code is entered it will display error then after the delay should display "0000")

so leave it turned on untouched until it resets itself.

You must hold at the end to store your code.
IF YOU DONT HAVE ¬ KEY THEN PUSH THUMBWHEEL IN AND SOME HAVE {A¬} KEY

Turn on the radio and the display will show 'CODE'
Use the steering controls for code entry.
Press the [ ¬] button then rotate the thumb wheel for the correct first digit
Press the [ ¬] button then rotate the thumb wheel for the correct second digit
Press the [ ¬] button then rotate the thumb wheel for the correct third digit
Press the [ ¬] button then rotate the thumb wheel for the correct fourth digit
If the correct code is now shown on screen,
press and hold the [ ¬] button for up to 10 seconds to store the code

FOR NO STEERING CONTROL
press the first preset button for the 1st digit,
second button for the 2nd digit
third button for 3rd digit
forth button for 4th digit
then press and HOLD button 6 to store. for 10 seconds

and on some it's hold 5 to store.

hay88, February 2011