Renault Megane II Radio Fix/Reboot After Battery Replace or Power Out - Enter Code with no Display!

After power failure of some kind or battery change, the Renault Megane II (2005-2008) model's radio
has been known to enter a security mode and stop working completely.

To get it working again, you need to enter the original security code when prompted.

But how to you get to this point if the radio won’t turn on? In this case, the display has also stopped working so we have to do the reset completely blind.

FOLLOW THESE INSTRUCTIONS TO THE LETTER AND IT’LL WORK.
(REMEMBER, YOU’LL NEED YOUR 4-DIGIT RADIO CODE - if you don’t have this, contact your Renault Supplier, quoting the radio serial number - this is on the side of the radio you’ll see it when you pull it out - they have to contact Renault for reset code. Also check your car service booklet documentation in the glovebox. If you’re in luck, the radio code will be quoted in here somewhere.)


(* OR SEE BOTTOM OF THIS TEXT FOR OTHER LINKS TO YOUTUBE VIDEOS THAT HELP YOU FIND THE CODE)


1. PUT KEY CARD IN AND START IGNITION
2. PRESS & HOLD 2 AND 5 SIMULTANEOUSLY
3. TURN ON RADIO WHILE DOING THIS (this will put it in test/security mode)
4. RADIO SHOULD BE ON WITH A CONSTANT BEEPING NOISE OVERLAID.
5. THE BEEPING WILL CONTINUE FOR 2 MINUTES APPROX.
6. WHEN IT STOPS, THE RADIO WILL STOP ALSO - BUT IT ISN’ T OFF - IT’S LOOKING FOR THE CODE - BUT YOU CAN’T SEE THIS PROMPT IF THE DISPLAY IS NOT WORKING.
7. SO, AT THIS POINT YOU NEED TO USE THE KEYS 1,2,3 & 4 TO ENTER YOUR RADIO CODE.
8. (LET’S SAY YOUR CODE IS 3456).

PRESS KEY 1, 3 TIMES. (YOUR FIRST NUMBER IS NOW ENTERED).
PRESS KEY 2, ONCE TO MOVE ONTO THE NEXT NUMBER INPUT.
PRESS KEY 2, 4 TIMES. (YOUR SECOND NUMBER IS NOW ENTERED).
PRESS KEY 3, ONCE TO MOVE ONTO THE NEXT NUMBER INPUT.
PRESS KEY 3, 5 TIMES. (YOUR THIRD NUMBER IS NOW ENTERED).
PRESS KEY 4, ONCE TO MOVE ONTO THE NEXT NUMBER INPUT.
PRESS KEY 4, 6 TIMES. (YOUR FOURTH NUMBER IS NOW ENTERED).


PRESS AND HOLD KEY 6 NOW, UNTIL IT MAKES A ‘POSITIVE’ BEEP NOISE.
(IF THE NOISE IT MAKES IS LOW-PITCHED, YOUR NUMBER IS WRONG - TRY PROCESS AGAIN FROM THE TOP).

PRESS AND HOLD KEY 6, 2 MORE TIMES. WAIT EACH TIME FOR THE ‘POSITIVE’ BEEP.



THAT’S IT. YOUR RADIO WILL COME BACK ON AND WILL WORK WITHOUT THE SECURITY BEEPING.


*//((IMPORTANT NOTE: IF THE DIGIT YOU REQUIRE IS '0/ZERO' THEN YOU DON'T NEED TO PRESS ANYTHING OTHER THAN THE 'MOVING ON/NEXT NUMBER' INPUT /// FOR EXAMPLE, WHEN YOU'VE PRESSED 2 TO INDICATE YOU'RE MOVING ON TO THE SECOND DIGIT IN THE CODE, THEN IT IS AUTOMATICALLY ON ZERO/0. JUST PAUSE 1 SECOND THEN MOVE ON TO THE THIRD DIGIT BY PRESSING 3.))//*




IF EVER YOU DISCONNECT YOUR BATTERY IN THE FUTURE, YOU WILL PROBABLY HAVE TO DO THIS AGAIN - SO HANG ON TO YOUR CODE!

THIS IS A DIFFICULT FIX WITHOUT THE DISPLAY TO SEE WHAT YOU’RE DOING, BUT IF YOU’RE SLOW AND SURE WITH YOUR BUTTON PRESSES, YOU SHOULD BE FINE.

IF IT DOESN’T WORK FIRST TIME, TRY AGAIN - YOU MIGHT HAVE MISPRESSED A KEY.
(I HAD TO DO IT MANY TIMES WITH DIFFERENT COMBINATIONS WHILE I FIGURED OUT HOW TO DO THIS).

ANYWAY, HOPE THIS HELPS AND THIS ANNOYING RENAULT MEGANE ISSUE IS RESOLVED FOR YOU. (SAME METHOD APPLIES TO CLIO AND OTHER MODELS OF THIS ERA).




*OTHER REFERENCE POINTS FOR FINDING THE 4-DIGIT CODE:
   • Free Renault Radio Codes (Unified)  

   • How to find your Renault radio pre-code.  
   • Get unlock code for your Renault radi...