Older BMW radios built by Blaupunkt use a code that can be calculated from the serial. Enter the last 3 of the 4 digits after BP plus the last 7 digits of the serial and get the code instantly.
Type the whole serial – for example BP3305A1234567, V123456 or TM9205901394. We recognise the radio and pick the right calculator for you.
Prefer to choose the radio type yourself? Open the calculators →
Up to 3 different serials every 24 hours per visitor – checking the same serial in another calculator does not count. Only use this for a radio you own. A wrong code can lock the radio for a while – check the serial before entering the code.
Enter 10 digits: the last 3 of the 4 digits after BP, then the last 7 digits (BP3305A1234567 → 3051234567).
Calculated on our server
Up to 3 different serials every 24 hours per visitor – checking the same serial in another calculator does not count. Only use this for a radio you own. A wrong code can lock the radio for a while – check the serial before entering the code.
BP3305A1234567 → enter 3051234567 Enter the full serial in the form above and we recognise the radio automatically. All 21 types get the code instantly.
| Radio | Made by | Part number | Serial starts with | Code |
|---|---|---|---|---|
| BAVARIA C II | Blaupunkt | 7 649 455 XXX | BP9455… (14 char.) | Instant |
| BAVARIA C III | Blaupunkt | 7 641 830 XXX | BP1830… (14 char.) | Instant |
| BAVARIA C REVERSE II | Blaupunkt | 7 649 475 XXX | BP9475… (14 char.) | Instant |
| BAVARIA C REVERSE III | Blaupunkt | 7 641 835 XXX | BP1835… (14 char.) | Instant |
| BAVARIA C REVERSE RDS | Blaupunkt | 7 641 836 XXX | BP1836… (14 char.) | Instant |
| BAVARIA C REVERSE RDS | Blaupunkt | 7 641 838 040 | BP1838… (14 char.) | Instant |
| BAVARIA C22 RDS | Blaupunkt | 7 643 836 340 | BP3836… (14 char.) | Instant |
| BAVARIA ELECTRONIC CD | Blaupunkt | 7 648 960 04X | BP8960… (14 char.) | Instant |
| BAVARIA ELECTRONIC CD II / MUNCHEN SCD09 | Blaupunkt | – | BP9960… (14 char.) | Instant |
| BUSINESS CD | Blaupunkt | 7 640 273 XXX | BP0273… (14 char.) | Instant |
| BUSINESS CD | Blaupunkt | 7 648 272 04X | BP8272… (14 char.) | Instant |
| BUSINESS CD | Blaupunkt | 7 649 272 04X | BP9272… (14 char.) | Instant |
| BUSINESS CD | Blaupunkt | 7 649 273 X4X | BP9273… (14 char.) | Instant |
| BUSINESS CD RDS CD23 | Blaupunkt | 7 643 850 34X | BP3850… (14 char.) | Instant |
| BUSINESS CD RDS CD23 | Blaupunkt | 7 646 270 34X | BP6270… (14 char.) | Instant |
| BUSINESS RDS | Blaupunkt | 7 643 838 34X | BP3838… (14 char.) | Instant |
| C23 MID | Blaupunkt | 7 648 266 340 | BP8266… (14 char.) | Instant |
| REVERSE C21 | Blaupunkt | 7 643 835 X4X | BP3835… (14 char.) | Instant |
| REVERSE RDS C22 | Blaupunkt | 7 644 836 X4X | BP4836… (14 char.) | Instant |
| REVERSE RDS C52 | Blaupunkt | 7 646 260 04X | BP6260… (14 char.) | Instant |
| REVERSE RDS C52 | Blaupunkt | 7 646 262 04X | BP6262… (14 char.) | Instant |
If the radio shows CODE after the battery was disconnected and the label says Blaupunkt, use the calculator above. Enter 10 digits: the last 3 of the 4 digits after BP, followed by the last 7 digits of the serial.
For BMW radios made by other suppliers, try the page of the maker named on the label (for example Becker or Alpine), or send the serial to our team.
Most newer BMW head units are coded to the car and do not ask for a code after a battery change. This calculator is for older Blaupunkt-made radios that display CODE.
On the label on the radio case. It starts with BP – enter the last 3 of the 4 digits after BP and the last 7 digits of the serial.