Antenna for GPS Navigation (R50/R52) 011 - Open Circuit - Intermittent

[Superdave09]

1 Fault Found:


00862 - Antenna for GPS Navigation (R50/R52)
011 - Open Circuit - Intermittent
Freeze Frame:
Fault Status: 00101011
Fault Priority: 4
Fault Frequency: 5
Reset counter: 107
Mileage: 158934 km
Time Indication: 0
Date: 2015.12.07
Time: 17:40:40

Anyone have any idea where is best to look to fix this please?

[morski]

Have you cleared the faults to see if its a reoccurring fault? The gps antenna line is directly connected from the main head unit up to the roof antenna. If there is a join which im fairly sure there isnt it would be on the c pillar behind the trim

[Superdave09]

Thanks, 100% reoccurring.

I think I'm gonna have to start with roof antenna that's the most likely place for something to go wrong - maybe water in it?

[morski]

No warranty? Does the outer cover look deformed? Unlikely water but anything is possible with audi. Try the head unit first its easier to remove with keys. Unplug cable and reinsert them. Might be a poor connection.

[Westyfield2]

I'd pull the unit out of the dash and check it's all plugged in.

[Superdave09]

.

[Superdave09]

Update - error is constant and sat nav thinks I'm 20 miles away from where I am (must be last location) Satalites = 0

[Superdave09]

#bloodycar

I managed to get the head unit out all seems fine so that's that ruled out....

I have 2 options now:

Buy a cheap gps off eBay - but where would I locate it? - would it work if I just left it in the back of the head unit (if it fitted that is)

Or

2nd hand gps original fin (approximately £35) but if have to get my local garage mate to fit, plus there is always the problem that it was a write and not the antenna??


I can't cope with these issues :-(

[morski]

Dont despair, consider it all part of a learning curve especially if your planning to keep it.
If you buy a cheap gps off ebay around £4.99 iirc it will work and you can mount it ideally as high up as possible ie behind the nav screen or the top of the blower box. You could leave it behind the mmi unit and see what signal you get.
There is probably more of a chance the antenna will be knackered rather than the cable itself. Cable going faulty is rare and would need to have had some sort of 'intervention' to it to go faulty

[B5NUT]

Not the first time I've seen the fault on the C7, unfortunately you need to replace the roof antenna. If the car is still under warranty take it to the dealers, if not and the car has FASH then there may be a goodwill gesture..