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#1
20th October 2014, 09:31 AM
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It is worth upgrading OEM GPS sensor on D2?
I was thinking if GPS sensor technology has advanced far enough in all these years to make it compelling to change my existing D2 GPS sensor that sits on top of my boot lid?
Did they become more 'sensitive' / accurate / reliable? If yes, what are the benefits? How better are they now? Who manufactures the best GPS sensors? Is there a modern sensor that you can fit into an OEM casing on top of the boot on D2? Tell me all about GPS sensors. Cheers.
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I'd rather drive on left 
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#2
20th October 2014, 09:38 AM
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I've no reason to believe there's any major improvement. I had to replace the aerial (sensor) on my PF S8 and reception seemed very similar even though it was a 10 years or so newer design.
I took the old unit apart to see what was wrong - major corrosion - and decided that putting the "guts" of a new one inside it was going to be pretty difficult. In the end I placed a replacement aerial just in front of the OEM location, at the bottom of the rear screen. Almost invisible - see picture:
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.). 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation".  (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one!  Finally: gone, but not forgotten..... 1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course.  (internal dimming mirror added later)1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850! 
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#3
20th October 2014, 04:39 PM
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I don't think you get any better accuracy - or if you do, you don't need it. Generally you lose accuracy when the GPS antenna starts to fail. When it's working properly, the onboard Sat Nav is pretty accurate.
Here's how I replaced my OEM one when it failed: http://forum.a8parts.co.uk/showthrea...1510#post21510 Very cheap and very quick, but I wouldn't bother it I didn't have to.
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S8 V10, 2006, Daytona FFRR 4.2 SC, 2006, Black Putting squashed dinosaur world to good use.
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#4
20th October 2014, 04:48 PM
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As HPSauce says, if by "sensor" you mean the antenna, no it does not make sense to change it - unless it is faulty like in HPsauce´s case.
The "brains" of the GPS are in the GPS chip inside the receiver, which you can't change anyway.
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Audi A8 D3 2006 - 4.2 TDI in Phantom Black
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#5
20th October 2014, 04:58 PM
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Quote:
The "top half" of an RNS-D is the GPS unit, including map CD drive. It is very easy to swap out if faulty. No coding or codes involved. As for antenna location, I'd now probably say (if not directly replacing the OEM one) just wire it straight to the back of the RNS and place it at the bottom left of the windscreen, hidden by the tax disc or black edge. Easy to get the lead over there behind or below the glovebox. That's where I've put it on my Ford Focus, which has a heated front screen, and it's well away from the heating elements and works fine.
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.). 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! Finally: gone, but not forgotten..... 1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
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#6
20th October 2014, 05:38 PM
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Bare in mind Sergey has the 2nd gen rns-e from iirc a 2011 car so I'd expect the gps internals to be a bit more advanced in terms of getting and keeping a good signal. I'm not aware of any changes to the antenna tech that would make swapping it worthwhile though. There might be a newer chipset but whether it makes an appreciable difference....
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===SOLD===2002 Audi S8 D2 Final Edition (yes, really) in Avus Silver with purple extended leather===SOLD=== 2011 S5 Sportback in Phantom Black with black Super Sports leather, 9x20s, tech pack high, adaptive xenon plus, intelligent key, memory seats pack, sunroof, B&O, Audi Drive Select & quattro Sports Diff, DAB, parking system plus 2015 VW Golf GTI Performance Pack in Carbon Grey with black Vienna leather, tech pack (Discovery Pro nav & Dynaudio), DCC, factory towbar and retrofit RVC
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#8
20th October 2014, 06:20 PM
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Not sure about an RNS-E though, but definitely on RNS-D.
__________________
2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.). 2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one! Finally: gone, but not forgotten..... 1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors. e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer. And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
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#10
20th October 2014, 09:59 PM
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I think the main improvement will come if you can use both GPS & Glosnass & soon to arrive Galileo satelites.
I believe that accessing the signal from so many more sources will greatly improve the accuracy of your location information. My phone (Nexus 5) can do this, so the challenge is probably how best to integrate such an upgrade, invisibly, into your existing package.
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A journey of a thousand+ (epic) miles, begins with a single step, (to the door of an 8). Lau Tzu
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