Sat Nav Problem - can't fix location

[rs666]

Sat Nav+ can't get a GPS fix on position.

Whilst in the M6 near Stafford last night it thought I was in the middle of the North Sea! (Might as well have been, wouldn't have been going any quicker)

Anyway, anyone else had this problem. I've had a look at the GPS reciever on the roof and there is no visible damage

[peterb]

I have experience an occasion when GPS signals were very weak - neither RoadPilot, nor Nav+ could obtain a fix - probably down to atmospheric conditions. However, I was driving between 22.30 and 00.30 on Friday night and had no problem with GPS fixes.

If the problem persists, I would suspect the GPS antenna. Probably the easiest way to prove that would be to extract the Nav+ and attach a separate antenna temporarily.

[Nige_RS4]

My roof mounted GPS antenna failed a couple of years ago (same symptoms). Like Peter says, try another antenna - you will need to allow upto 20mins for it find a signal (preferably whilst you're stationary) I changed mine myself - a new antenna was in the region of £40 from vagparts (is yours roof mounted, as my old one has signs of corrosion on the inside?).

Nige.

[craigyb]

My roof mounted antenna was knackered when I bought the car, 2004 RS6, replaced under warranty. Your NAV unit should be able to show you how many sats your receiving.

Craig

[rs666]

Says 29 sats available, but none received!

Didn't think there was 29 available at any one time?

[Golich]

I had similar problem and the whole head unit was replaced. £900! Thank feck it was under warranty!

[rs666]

Yep, same outcome.

The head unit is being replaced under warranty...phew!

[Nige_RS4]

The head unit is being replaced under warranty...phew!

The Audi technicians diagnosed my sat nav electronic unit at first, so I got an exchange unit through my warranty company - turned out to be the gps antenna (even though they told me they tried a new one) - I suspect that they didn't allow enough time for the new gps antenna to find it's first fix (it can take upto 20mins for a first fix, possibly even longer) .

I mean £40 versus £900 - I know which I would try first!