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Blaupunkt HILDESHEIM CD28 radio code
Get the original security PIN for your Blaupunkt HILDESHEIM CD28 audio system (BLAUPUNKT) without visiting a dealer. Submit the serial number online and we will retrieve the matching code remotely.
Blaupunkt HILDESHEIM CD28 serial number format
Example serial number
BP185512345678
- Serial number length: 14 characters
- The serial number starts with BP1855
Blaupunkt-built units have a 14-character serial number (letters and digits) printed on the label or engraved on the metal case, for example BP3301Y1234567 or 3A053278005827. The 10-digit part number starting with 7 (e.g. 7 643 301 316) is also required for the calculation, so make sure it matches your unit. On some labels the serial is split into fragments (e.g. "4 9571489 7643063510 4") — combined, this reads as BP306349571489.
Supported Blaupunkt HILDESHEIM CD28 part numbers
We recover radio codes for 2 part numbers of this radio model:
7 641 855 920
7 641 855 921
Blaupunkt HILDESHEIM CD28 radio code FAQ
Where can I find the serial number on a Blaupunkt HILDESHEIM CD28 radio?
Check the sticker on the side or top of the head unit, or open the service menu on the screen. Common serials for Blaupunkt HILDESHEIM CD28 radios look like BP18550xxxxxxx. Take a clear photo before placing the order so we can verify it.
What does a Blaupunkt HILDESHEIM CD28 radio code look like?
Most factory stereos use a 4-digit numeric PIN, while premium navigation or amplified systems may require 5 digits or include letters. We highlight the expected format in the delivery email.
What if the radio locks after too many wrong attempts?
Leave the ignition on until the lockout timer clears—usually 15 to 60 minutes—then enter the verified code carefully. Avoid repeated errors to prevent another SAFE/LOCKED message.