billy_beemer
Member
Well clearly I'm asking as the FM reception on my car is virtually non-existant. Autotune finds nothing, Manual tune just about finds a station but you can't listen to - it just sounds like the aerial is loose, reminds me of the old days of waving a piece of wire around your bedroom finding somewhere decent to blu-tac it.
"FM Antenna '2'" (item 6) aka the external aerial is connected in some form as if you disconnect it you loose all reception. So if there are in fact 3 FM aerials this would suggest the other 2 aren't connected and that maybe there's a problem with the Diversity module?
If a vehicle is ordered with a CIC, the iboc tuner is located inside the CIC. If the vehicle is
equipped with a RAD2, the IBOC control unit is mounted in a separate location.
Antenna Locations
The antenna system on the E89 consists of 3 FM, 1 AM, 1 GPS, 2 Telephone and an
SDARS antenna. Their locations are illustrated below:
Overview of Antennas
windows 7 screenshot
If anyone has any ideas on what to check I'm more than happy to pull things apart and photograph / document the fix.......... however right now, not sure whether to start near the rear of the vehicle or the head unit?
EDIT as google suggests this is the Antenna Diversity Module:
http://www.z4-forum.com/forum/viewtopic.php?f=31&t=11936&p=181957&hilit=antenna+diversity+module#p181957
On the E85 this looks quite easy to get at, anyone know if its the same on the E89? worth a look!
"FM Antenna '2'" (item 6) aka the external aerial is connected in some form as if you disconnect it you loose all reception. So if there are in fact 3 FM aerials this would suggest the other 2 aren't connected and that maybe there's a problem with the Diversity module?
If a vehicle is ordered with a CIC, the iboc tuner is located inside the CIC. If the vehicle is
equipped with a RAD2, the IBOC control unit is mounted in a separate location.
Antenna Locations
The antenna system on the E89 consists of 3 FM, 1 AM, 1 GPS, 2 Telephone and an
SDARS antenna. Their locations are illustrated below:
Overview of Antennas
windows 7 screenshot
If anyone has any ideas on what to check I'm more than happy to pull things apart and photograph / document the fix.......... however right now, not sure whether to start near the rear of the vehicle or the head unit?
EDIT as google suggests this is the Antenna Diversity Module:
http://www.z4-forum.com/forum/viewtopic.php?f=31&t=11936&p=181957&hilit=antenna+diversity+module#p181957
On the E85 this looks quite easy to get at, anyone know if its the same on the E89? worth a look!
