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Discussion Starter · #1 ·
The temp gauge on my TTS doesn't sit at 90 like it did on the MK1. Well, it does, but only when sitting in traffic. On the motorway it sits some way below 90. I know they're only supposed to move off 90 if there's a significant enough temp change.

Similarly, the fuel gauge doesn't show it's completely full even when I've filled it to the brim.

I guess they just need recalibrating? Is this a dealer job?

TIA
 

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Not sure about the petrol gauge but my temp gauge doesn't quite hit 90. When it was last serviced I asked the mech n he checked on VCDS n said it was fine
 

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Discussion Starter · #3 ·
Ikon66 said:
Not sure about the petrol gauge but my temp gauge doesn't quite hit 90. When it was last serviced I asked the mech n he checked on VCDS n said it was fine
Aah, thanks. Must admit I'd just 'assumed' it'd be like the Mk1.
 

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Discussion Starter · #5 ·
igotone said:
My temp gauge never seems to budge off the vertical - is that 90 degs?
Yep, mine never did on my previous car. I'm just so used to not booting it before it gets to 90 that it annoys me now it never quite reaches there, unless sat in traffic!
 

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Discussion Starter · #8 ·
igotone said:
I can see how that would be somewhat annoying. The only issue I have with the fuel gauge is it goes down too damned quick! :p
Tell me about it! I've started having the DIS so it shows the speed now rather than the number of miles 'til empty! Mind you, I reckon the fuel consumption isn't too far off what I used to get on my remapped MK1 225.
 

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Discussion Starter · #9 ·
davelincs said:
Mine sits on 90degs when warm, never seen it any lower or higher
Thanks Dave - that's what I'd expect to be honest. It's going in for something else in the next couple of days so I'll see what they say.
 

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Discussion Starter · #11 ·
the minty1 said:
My temp sits rock solid at 90. My old A3 used to sit about 70-80 and seemed to take an age to get there. I changed the thermostat and it was then sweet. Maybe that...
Cheers, I'll mention that to Audi as no doubt they'll try and fob me off with 'it's normal'.
 

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When I picked my car up in June I noticed the temperature sat between 70-80 on motorways but 90 (or just a fraction below) in town, no other symptoms. Had it checked over by Audi specialist who initially said one of two sensors had gone, replaced one which didn't fix the problem, but second one did. Since then the needle sits at 90 with absolutely no variation. Wasn't an expensive fix.

Don't recall which one's were replaced but happy to dig out the receipt later if needed.
 

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Discussion Starter · #13 ·
zip it said:
When I picked my car up in June I noticed the temperature sat between 70-80 on motorways but 90 (or just a fraction below) in town, no other symptoms. Had it checked over by Audi specialist who initially said one of two sensors had gone, replaced one which didn't fix the problem, but second one did. Since then the needle sits at 90 with absolutely no variation. Wasn't an expensive fix.

Don't recall which one's were replaced but happy to dig out the receipt later if needed.
Thanks very much :) . If it turns into a bit of a saga and they can't fix it I'll give you a shout. Mine behaves exactly as you describe.

Just spoken to them and at least they immediately admitted that it's not right as it is. The fuel gauge is an odd one - I had the dashpod replaced on the MK1 but I know the MK2 doesn't have such problems.
 

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Can't help with the fuel one, seems a little odd as mine sits on full for about 40-50 miles. Only way to tell I guess is to run it low on fuel and fill up to the max it will take, the amount put in (litres) shouldn't be far off the fuel tank capacity which is shown in the handbook (50-55 litres I guess).

Good luck - PM me if you need the info.
 

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The only adjustment on the fuel gauge is the zero. You put 5l of fuel in it and then tell the car that's empty. Strange, but true.

If you have VCDS you can test the Dashpod gauges and get a report.
 

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re: the fuel gauge, mine did this, when you filled the tank it would only show 3/4s full. After a couple of visits to the dealers (after doing various diags and replacing the dashpod) it turned out to the fuel senders in the tank.

These were replaced under warranty and it has now works fine as it should.
 

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My temp gauge is always straight up on 90....I also get the not quite full reading sometimes, even when full after a few miles it drops down, no big deal and not something I'd spend money on, I'd rather keep it only half full anyway, less weight to carry round etc...
 

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Discussion Starter · #18 ·
Right - Audi are really pi**ing me about on this :evil: .

To recap briefly - on a motorway journey (for example) my temperature gauge sits at 85 degrees the whole way, then as soon as I come off the motorway and sit in traffic etc it moves up to 90 degrees. I think/know/believe it should sit rock solid at 90, unless there was a significant change in temperature.

It's been in to Audi twice now - the first time they said it was fine and they couldn't find any fault codes. The second time they said they'd changed the 'temperature switch' and it was now 'fixed. It's still the same of course.

Latest state of play is I've asked them to confirm in writing the part number of whatever they've supposedly changed, and to also confirm in writing that the behaviour of the temperature gauge is normal. I received a call on the way home tonight to say that they can't find any fault codes and that they won't go to the expense of changing different parts to try and fix it and they assume that I don't want that expense either. Cheeky feckers - I paid a premium for an Audi Used Approved warranty so everything should supposedly work perfectly. Ha! Why have they apparently changed a part if they say there's nothing wrong with it? To try and fob me off, of course. Also, there was some waffle about these parts being manufactured to within a 10% tolerance???

So.............they are stalling on the part number, but I'm insisting that they provide it. I am also insisting that they provide written confirmation re how the gauge should work.

Anything else I can do? Should I pursue it do you reckon, or just dry my eyes and not worry about it? The car runs perfectly in every other respect. It's just frustrating because I'd put my mortgage on the fact that if they drove any TT in their showroom down the motorway the gauge would sit at 90. That is what they're designed to do isn't it??

Not the end of the world, I know, but this car was knocking on £40k new 3.5 years ago. It doesn't bother me to go after them, I quite enjoy the challenge, but there's no point if they can prove that my gauge is 'normal'.
 

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i don't see the issue, all 9 of my TTs read slightly different.... i don't recall anywhere it (the manual) stating the car will or should run at X or Y. All depends on driving style, road, fuel, altitude, engine condition etc etc etc.
 

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What's the oil temperature in the DIS? On a longer drive with moderate temperatures and moderate speeds it should get close the coolant temperature: 90 degrees C.

If the oil stays considerably lower in temperature, the coolant gauge might be right after all. In that case the thermostat might open too early, leaving the engine too cold, never actually reaching operating temperature, except when it needs additional cooling (low speeds).
 
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