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E85 / E86 Z4 (2003-2008)
E85 Z4 Roadster, E86 Z4 Coupe, E85 Z4 M Roadster, and E86 Z4 M Coupe talk with our BMW gurus here.

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Old 01-16-2015, 07:13 PM
hazay hazay is offline
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Location: Winter Garden, FL
Join Date: Jan 2015
Posts: 1
Mein Auto: 2004 BMW Z4 3.0i
2004 Z4 3.0i with premium sound and navigation - Freezing navigation/radio display?

I have a 2004 3.0i with the premium audio package and navigation display.

i don't recall it doing this before, so I thought I would check here for advice and to see if anyone else has experienced it.

Sometimes when I leave it on a radio station and turn the car off, when I start her up next time, my display shows the radio station, but no sound is playing. It is only when I change the station, that I get the station to play through speakers.

Even more importantly, sometimes when I change stations using the seek button, the entire unit freezes and nothing works, auxiliary, mode, power, etc. In other words, nothing I press or hold seems to work. Has anyone experienced this and if so, is there any way to reboot without pulling over for 5 minutes and shutting her off.

Maybe my unit is going bad, but I don't know if it's the head unit, a fuse, maybe the dvdrom drive that has the navigation dvd in it. Any thoughts or likely culprits would be appreciated, so I can start to narrow down the problem.

thanks in advance for any replies,


best regards,

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Old 01-17-2015, 06:25 AM
agc93 agc93 is online now
Once you go roadster...
Location: Brisbane
Join Date: Oct 2014
Posts: 78
Mein Auto: 2003 Z4 3.0i Rdstr
I have the Nav+DSP package as well. Have you tried updating the nav system software? It's a relatively simple process, gives you some (minor) extra features and generally makes it more stable and speedy. Note that this process is independent of updating the maps.

PM me if you want any more information on the process, and I might put up a guide if anyone is interested.

Current Garage:
2002 Holden TS Astra Convertible (Opel Mk4/G)
1995 Volvo 440 SE 2.0
2003 BMW Z4 3.0i
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