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S3 warm up time?

Discussion in 'New A3/S3 (8V Chassis)' started by Itguy, Dec 1, 2013.

  1. warren_S5

    warren_S5 Moderator
    Staff Member Moderator VCDS Map User

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    Another fan of oil temp over water temp here. Water temp is so misleading as in new cars it rises so much quicker than the oil temp. Shed-loads of owners must misinterpret the two and start ragging once the water temp is nearly at 90, not realising the oil temp may be as low as 50 degrees.

    In the 8P the oil temp was buried in the DIS menus, and when selected only stayed up for about 5 seconds before it reverted back to main screen. It couldn't be selected permanently. As a general rule of thumb I would never exceed 4000rpm in my car for at least 7-10 minutes of first operation (ambient air temps depending), but after that it's fair game.
     
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  3. Snake Pliskin

    Snake Pliskin Well-Known Member
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    Hmmm that's interesting.

    I will have to see if I can dig out Oil temp on the S5 dis then.

    I must confess to relying on the water temp myself and must say the S5 does get up to temp MUCH quicker than my last two TT's and retains more heat after the car has been stationary for a period too.
     
  4. stetheo

    stetheo Active Member

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    I wish there was a way for it to be selected on the DIS permanently on the 8P, as I find the oil temp gauge the be miles out on accuracy. After driving an B7 RS4 where it is there permanently, it kind of bugs me that i'm not able to have it in the S3.

    Now they appear to have removed it altogether on the 8V unless you have VCDS, which I guess is good if you have access to VCDS.
     
  5. Toadoftoadhall

    Toadoftoadhall Active Member

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    When I start up I always use the lap time DIS display to monitor the oil temp until it's about 80. So can the dealer change the set up to show oil temp on other DIS screens too? Is this the vcds settings?
     
  6. veeeight

    veeeight I am a very pretty girl
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    All this backlash about the boost gauge !

    You do realise that many 8P S3 owners were clamouring for a boost gauge on the S3, even more so when the RS3 came out with a boost gauge in the DIS !!

    So Audi listened, and gave the S3 a boost gauge !

    (Admittedly at the expense of a water temp gauge !)


    There is still a water temp red light though, let's hope this come on before it's too late !





    edit:
    thinking about this a little more, the thermo management of this engine is so different and advanced compared with a traditional engine, so in all likelihood, a water gauge is maybe superfluous.

    As as warren stated above, the warm up time is so much quicker (and oil and water have differing warm up gradients), this is mainly due to the integrated casting of the exhaust manifold within the head, that a single water temperature sensor would not be reflecting the true situation.

    Add to that the fully electronic coolant control system, incorporating the 2 electric motor drive rotary slide valves (no more traditional wax thermostat) and the water cooled oil cooler, this will already have pretty good sensors around it to work - so I would bet that the red water temperature light is not connected to a simple single temp sensor, it will be illuminated under the control of the ECU, with inputs from various sensors around the engine.

    Given all this, a single point water temp gauge would be meaningless.

    Even more so when the control system actively runs the engine at 107 degC for part load scenarios (to minimise friction and gain max efficiency), and 85 degC for full load driving.
     
    #45 veeeight, Mar 19, 2014
    Last edited: Mar 20, 2014
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  7. Silky-S3

    Silky-S3 Is loving his new 8V S3!

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    I fitted a aftermarket boost gauge to my old 8P S3. Love it
     
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  8. Itguy

    Itguy Well-Known Member

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    Yep

    In the computer DIS display you know how you can scroll through the different things, mpg average 1 and 2, range, average speed 1 and 2 etc etc - with VCDS you can switch on oil temp to appear in that list too.

    Therefore you can see oil temp on all screens that show the current computer setting - ie most of them!
     
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  9. Rexus

    Rexus Active Member

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    In a stable situation, oil temperature is indeed a better indicator of engine temperature than water temp. However, if the engine temperature starts to increase due to a fault condition, an increase in water temperature will show a problem much sooner than a rise in oil temperature, which nearly always lags that of water.
     
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  10. mr gee

    mr gee Member

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    The oil reaches working temperature incredible fast on my S2, last I checked, it was like within 2km of driving. This contrasts with my previous car a Scirocco R that took 7 km to reach similar temperature
     
  11. S32B

    S32B Well-Known Member
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    Old thread but as a few of us will be collecting our S3's very soon I found this:

     
  12. S3quatt

    S3quatt Flat Oot like a ducks Foot
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    +1 for going by oil temp.
    The VCDS mod was the first thing I did with mine when I took it home. Oil temp in the DIS & only "use" the car once its up over 80.
    I agree with the post regarding the boost gauge, my only problem with it is the fact it doesn't actually show what pressure the turbo is actually putting out. In my eyes that renders it pointless!
     
  13. elpaulio

    elpaulio Active Member
    Gold Supporter VCDS Map User Audi S3

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    Yup, oil temp mod is the first thing that has to be done on any S3 IMO!
    And as said, wait for 80 before giving it the beans...much easier in the S-Tronic I find as gentle throttle in D will keep the revs below 3K and bring a decent speed fairly rapidly.

    On the boost gauge, I wonder if Audi have used the same LEDs as they did on the Fuel gauge to signify an over boost situation?! i.e. the LED that turns red when you are on the last bar of fuel being used on the top one of two segments f the boost gauge?? If not then they have missed a trick as that is the only way that gauge could have been useful!!
     

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