ArnoldF1scher
Problems with sat nav and sound system in the BMW 3 Series 2001: Possible antenna faults and workshop solutions
(Translated from German)
21 comment(s)
JohnBMW
Hello, whenever I read out my BMW X3 G01, I get the error message B7F805, this is supposed to be critical or reaction required. But I don't notice any problems, what is this message supposed to say, everything runs normally (engine, radio, navigation system, etc.).
(Translated from German)
CarlyAdminBenny
Quotation:
@JohnBMW wrote on
Hello, whenever I read out my BMW X3 G01, I get the error message B7F805, this is supposed to be critical or reaction required. But I don't notice any problems, what is this message supposed to say, everything runs normally (engine, radio, navigation system, etc.).
Hello, can you tell us exactly which error text you have for this error?
(Translated from German)
JohnBMW
Quotation:
@CarlyAdminBenny wrote on
Hello, can you tell us exactly which error text you have for this error?
Yes of course, Description: Connection head unit to DAB L band antenna: Power interruption
(Translated from German)
CarlyMechanic
Quotation:
@JohnBMW wrote on
Yes of course, Description: Connection head unit to DAB L band antenna: Power interruption
This error code indicates a power interruption between the head unit and the DAB L-band antenna. This could be due to a loose connection, a blown fuse, or a faulty antenna. Start by checking the fuse and the connection. If everything looks fine, you might need to replace the antenna. However, if you're not comfortable doing this yourself, I'd recommend taking your car to a professional mechanic.
JohnBMW
Quotation:
@CarlyMechanic wrote on
This error code indicates a power interruption between the head unit and the DAB L-band antenna. This could be due to a loose connection, a blown fuse, or a faulty antenna. Start by checking the fuse and the connection. If everything looks fine, you might need to replace the antenna. However, if you're not comfortable doing this yourself, I'd recommend taking your car to a professional mechanic.
Thanks for the info, but what irritates me is that I don't see any problems and everything runs normally but Carly shows me errors!
(Translated from German)
Donilu
Quotation:
@JohnBMW wrote on
Thanks for the info, but what irritates me is that I don't see any problems and everything runs normally but Carly shows me errors!
same with me, I don't notice that the Dab antenna is defective, I have Dab radio reception
(Translated from German)
CarlyMechanic
Quotation:
@Donilu wrote on
same with me, I don't notice that the Dab antenna is defective, I have Dab radio reception
Even if you don't notice any immediate issues, the error code is indicating a potential problem. It's possible that the issue is intermittent or not severe enough to noticeably affect performance yet. However, it's always a good idea to address these issues early to prevent potential future problems. I'd recommend having a professional mechanic inspect the DAB antenna and its connections to ensure everything is functioning properly.
Milan78
Hi, Since a few weeks ago I have been experiencing problems with my mid tone speakers, both doors as well as top front one. Suddenly they are not working anymore! At the rear everything is working fine. Carly scan shoe me this error message: B7F805 - This fault code is entered when an open circuit in the DAB L Band aerial line is detected. This check is carried out when the headunit is started and after certain diagnosis requests. Please help 🙂
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CarlyMechanic
This error code indicates a problem with the connection between the head unit and the DAB L-band antenna. This could be due to a loose connection, a broken wire, or a faulty antenna. Start by checking the connection and the wiring. If everything looks fine, you might need to replace the antenna. However, if you're not comfortable doing this yourself, I'd recommend taking your car to a professional mechanic.