i got my radio code from dealer,after putting in 5th digit the first number flashes.even after entering OK. After a couple of trys gets stuck on WAIT & locks out again. , HELP!

Asked by May 09, 2012 at 10:53 PM about the 2001 Mercedes-Benz M-Class ML 320

Question type: Maintenance & Repair

2 Answers

15

You might need to pull the radio and get the serial number located on the bottom of the radio and have the dealer get the code off of that! I had the same problem, but I need to replace my radio.

1 of 1 people found this helpful.
515

try resetting the ECU by disconnecting the negative battery cable for 15-20min or so. Then re-enter your code once the radio comes up. Youll have to re-cal your ABS/Traction (steering wheel lock to lock a few times) and cycle the window motors also. If it still isn't working, it's a fault within the radio itself and needs to be looked at.

2 of 2 people found this helpful.

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