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Old 11-24-2009, 11:13 PM
Join Date: Nov 2009
Location: OC, CA
Posts: 13
infantrytroop22 is on a distinguished road
Satellites not registering...Please help!

***Update: So I finally connected to about 8 satellites and it was working fine. But I was parked in a parking structure all day and when I drove out it took almost 45 minutes to establish a connection with just 3 satellites. Now it has a connection with 6-8, but the S/N for all of them is between 1 and 4. My friend who is parked next to me has the same system and he has S/N numbers up to 15. Does this likely mean that my antenna is bad, or could it still possibly be a problem with the gps unit itself?

So my nav on my '05 BMW M3 (mkIV I believe) randomly stopped working the other day, and I was hoping someone could help me out. When I go into the service menu it says "Satellite search" under GPS status. Sometimes it says "Receiver error" when I first turn the car on. It seems clear that it is not registering with any satellites, but I can't figure out why. I checked the connections, reset the unit (and let it sit for 30 mins after doing so), but everything looks okay. I'm thinking it might be the antenna or the unit iteself (hopefully not), but any guidance would be much appreciated. I don't really know much about this stuff and cars in general so keep that in mind. Haha. Here are the readings when I go into the service menu. Thanks.

*update: I got a new error message tonight that said "GPS malfunction" but it later changed to "Satellite search"

Last edited by infantrytroop22; 11-25-2009 at 10:55 PM.
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Old 11-25-2009, 04:58 AM
ccfj1's Avatar
Join Date: Sep 2006
Location: The UK.
Posts: 1,932
ccfj1 is on a distinguished road
Welcome to the forum.

Sounds like either the GPS antenna is duff or the internal GPS receiver unit in the mk4.

Buy the GPS antenna first (it's the cheapest possible solution), you should get one off eBay for $10 (any female SMB push fit will do), if you have a coupe then a 3m one will be fine a vert then a 5m.

The GPS antenna attaches to the back of the mk4 and is routed to the centre (rear) of the rear parcel shelf, on the vert it's near the front screen somewhere.

But as a test, just connect to the mk4 and let it see free sky, then do the Sat test again.

Sept 03, M3, Silver Grey. Retro-fits: Modded Mk4 DVD Drive, OEM Bluetooth, VR Control, Rainbow Speaker Upgrade, Sony SOT Amp, HK Sub, CCFL, Intravee II, NightMode.
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Old 11-25-2009, 11:04 PM
Join Date: Nov 2009
Location: OC, CA
Posts: 13
infantrytroop22 is on a distinguished road
So I am able to establish a connection now, but I usually get a weak signal. Does this mean it is probably the antenna rather than the GPS receiver?
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