Ben Nylk submitted a new resource:
How to locate your Antenna Amplifier - How to locate your Antenna Amplifier
How to locate your Antenna Amplifier - How to locate your Antenna Amplifier
Read more about this resource...Having very poor FM/AM reception in the E85 Z4 is a common and known problem. So much so that BMW even released a service information bulletin.
SITUATION
The Top Hi-Fi Sound System (option 677) has poor radio reception on the FM band only.
CAUSE1
Water in the DSP amplifier plug connector
CAUSE2
DSP amplifier software
CORRECTION
On a customer complaint basis only, remove the DSP amplifier plug connector, and carefully examine both male and female connectors for...