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  #11  
Old 21st June 2017, 11:09 PM
mattylondon mattylondon is offline
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Quote:
Originally Posted by RICKY D View Post
anyway on idle and up to temp, the gauge indicated 90 degrees but was actually 99 degrees according to the app. When driving the gauge remained at 90 but the app indicated the car was running between 103 to 104 degrees. It spiked at 105 but then went down to 104 again. The whole time the gauge remained at 90
Nothing wrong there, that's how VW/Audi designed it. The engine can work within a specific temperature range. So owners don't get worried with a constant moving temp gauge they fixed it at 90c when it's within this design range. So for it to move to 95c is odd. Worth keeping a check on but could be down to the recent hot spell.
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  #12  
Old 22nd June 2017, 03:32 AM
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27litres 27litres is offline
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Experienced as I am in driving my car in 40°+ temperatures, I can say that the temp gauge on the S8 will rise very slightly above the 90 mark on extremely hot days (35°+), but only in traffic or at low speeds.
Moving at good pace, the speed settles and stays on 90°, even at 42° (the highest temperature I've driven in since owning the S8 - some mild summers recently ).

With the climate control on automatic (ie. Aircon on), the aux fan runs at slow speed constantly (nearly inaudible). It will turn off on Econ mode and then run purely on temp settings.
The trinary switch will of course trigger higher fan speeds as the engine temperature rises, which may be the 'trigger' David is hearing at 94°.
Different markets may trigger this differently of course, though I don't see why they'd bother when you could potentially drive it to a hotter climate...
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  #13  
Old 22nd June 2017, 09:18 AM
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RICKY D RICKY D is offline
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Thanks all for your input.

I'll definitely keep an eye on it and report back if anything changes. I may look to change the coolant temp switch as a precaution too.
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  #14  
Old 22nd June 2017, 09:57 AM
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Goran Goran is offline
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Quote:
Originally Posted by moltuae View Post
And if it takes your hand off it's working

Couldn't you test it just as easily (but perhaps a little more safely) without the engine running? If the engine/coupling is hot, I would imagine the fan should be difficult to turn, should it not?
Lol, I did say use a pen
Yes I agree not necessarily the best test, I read it on the internet.

I'm going to check my fan and report back.
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