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  1. overheating and other issues 
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    My 2006 2.0 fsi est was overheating when stuck in traffic, I have replaced the water pump, both thermostats and both temp senders, before I did this work it struggled to get to full temp, which it now does, and runs at an indicated 90 degrees until I get stuck in traffic, when it rises to 110+ and I have to put the heater on max to bring it back down, what should I look for next?
    Also have another issue, when I did the timing belt the other day, the battery was disconnected for about 10 days, since reconnecting it will not store my average fuel consumption, and every time I switch engine off, it starts at Zero again, and there is no option 2 on the mfd to display average mpg.
     
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  2. Re: overheating and other issues 
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    Have you checked that the radiator fan is cutting in when it gets to/exceeds 90 degrees? Sounds as if it isn't running which will cause it to overheat unless you put the heater on.
     
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  3. Re: overheating and other issues 
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    If it is showing 110 on the gauge it is a LOT hotter in reality. A few days ago I was monitoring a VAG cars warm up and I got the feeling it was getting hot but the gauge said 90.... when I checked in the measuring blocks it was 108 so I turned it off. The main cooling fan, which contains the controller, had failed.
    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:
     
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  4. Re: overheating and other issues 
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    When I did the thermostats I ran it up, and tried various things like air con on or off, sometimes the fans would run sometimes not, is there any way of testing the fan controller/
     
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  5. Re: overheating and other issues 
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    The fan should always run with the A/C on so don't let that fool you into thinking it is running under normal conditions. What I would do is take it for a drive then park up so as to provoke an overheat situation and see if the fan is running without the A/C on.
     
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  6. Re: overheating and other issues 
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    When I tested it, sometimes the fan would not run even with the air con on.
    When it got hot in traffic again on sat I parked up and lifted the bonnet to check, and the fan was not running.
    Another thing, just been looking at new fan units on the likes of Autodoc, have got what I think is the correct part no, but even then there seem to be different power outputs even for the same part no! (confused)
     
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  7. Re: overheating and other issues 
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    You can run the fans in engine and HVAC output tests using a suitable diagnostic system where you can also accurately watch the engine temperatures at a couple of different points in some cases.
    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:
     
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  8. Re: overheating and other issues 
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    Just been out and run it up to temp, aircon on full, no fans running at all, wouldn't go above indicated 90 in this crap weather, got vcds but still learning how to use it.
     
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  9. Re: overheating and other issues 
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    I have a TTS in and the gauge stays dead on 90 but the computer was showing 117 at the head sensor but 95 at the rad outlet sensor and it was boiling over yet no warning, indication or fans even! I think the water pump is at fault but we don't have time until next week to do it. The thing is, why these daft temp gauges, why don't they tell you the engine is too hot? The Ibiza Bocanegra we did the head on a few weeks back has no temperature gauge, no level warning (even though the bottle has the fitting) and was getting a bit hot and no warning light! Bloody negligent...
    Dark was that day when Diesel conceived his grim engine that begot you, vile invention, more vicious, more criminal than the camera even, metallic monstrosity, bale and bane of our culture, chief woe of our Commonweal. How dare the Law prohibit hashish and heroin yet license your use, who inflate all weak inferior egos? Their addicts only do harm to their own lives: you poison the lungs of the innocent, your din dithers the peaceful, and on choked roads hundreds must daily die by chance-medley. Nimble technicians, surely you should hang your heads in shame. Your wit works mighty wonders, has landed men on the Moon, replaced brains by computers, and can smithy a "smart" bomb. It is a crying scandal that you cannot take the time or be bothered to build us, what sanity knows we need, an odorless and noiseless staid little electric brougham.

    W.H. Auden (1907-1973), A Curse:
     
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  10. Re: overheating and other issues 
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    I had vcds connected when I ran it up to temp, manged to get it to show temp and watched it rise to 89 when gauge said 90, so think that's ok, apparently the fan controller is built in, does anyone know if its part of the main fan (big one) or somewhere else, trying to decide what I need to replace in that department.
     
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