You have 3 attempts to enter the correct code. On the 4th failed attempt, the radio will lock for 1 hour (display "SAFE" and a countdown timer). Do not turn off the ignition during this lockout period; leave the radio on until it resets.

: On some RCD 300 models, you can display the serial number by pressing and holding buttons 1 and 6 simultaneously for several seconds.

If your radio displays "SAFE" on the screen:

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Need a MBLEx

Study Plan?

rcd 300 code calculator blaupunkt 1 new

Start preparing for the MBLEx the easy way with this comprehensive and organized study plan. It's a great way to get started, and it's free

rcd 300 code calculator blaupunkt 1 new

Get Your MBLEx

Study Plan

rcd 300 code calculator blaupunkt 1 new

Download our free MBLEx Study Plan (PDF) to help organize and guide your study sessions.

rcd 300 code calculator blaupunkt 1 new

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rcd 300 code calculator blaupunkt 1 new

Please check your email for your study plan.