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Thread: coolant temperature display fault?

  1. #1
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    coolant temperature display fault?

    I got my 2015 Up! High a few weeks ago and it in the last few days when I started driving, the car came up with a flashing warning on the coolant temperature when it’s at 40.0 degree C. I kept on driving and it was fine.

    A day later when I drive the car again, the coolant temperature warning comes up again, flashing a few times showing 40.0 degree C. I continue to drive the car and the temperature remained at 90 degree C since then.

    My coolant warning light was never on on the dashboard. Only the warning sound and the coolant temperature flashed a few times. I ignited the car and the coolant warning light did light up for a second or two before becoming unlit, I guess that eliminates the chance of warning light not functioning properly.

    I checked the level of coolant in the chamber and the coolant level remains is still above the minimum mark. And the type of coolant should be correct in it (as the car was okay in the first 2 weeks of me driving it).

    I can go back to the garage I bought the car to have it checked, but to do that I need to drive 1:15 hrs to get there and I worry the car can actually overheat during the drive. Do you guys know what I can do to diagnose the car coolant? Is it a problem with the temperature sensor? Thank you guys!

  2. #2
    Administrator Keithuk's Avatar
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    First posts normally go in introductions else you could get a free fix and we never see you again!!!

    Your car spec says 0, only what I've added from this post.

    You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing and check systems out.
    2010 Golf GTD (170) CBBB, 5 Door, Shadow Blue (P6/D5Q), Transmission Code: KXZ, Flat Tyre Indicator, Basic Protection Pack + VCDS.


  3. #3
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    Quote Originally Posted by Keithuk View Post
    First posts normally go in introductions else you could get a free fix and we never see you again!!!

    Your car spec says 0, only what I've added from this post.

    You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing and check systems out.
    Thanks Keith for adding my car spec. I just did a hello post on the introduction. I will get that sorted on Wednesday as Iím driving back to the garage where I bought the car. Although I am just wondering if itís better to not drive the car at all as itís always staying at 90 degree C after.a few minutes of driving the car?
    2015 Up! High 1.0

  4. #4
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    90C is a normal coolant temperature for a fully warmed up engine.
    My car: 2003 Polo 1.4 BBY, Petrol
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  5. #5
    Administrator Crasher's Avatar
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    How do you know what the exact temperature of the coolant is, i.e when you said it was at 40 and 90, there is no display I can remember, just a warning light?
    2003 Skoda Octavia VRS Estate. APR 98RON remap, APR R1 diverter valve, Jetex exhaust, K&N panel filter, 7.5x18 Alutec Monstr wheels with 225/40 18 Uniroyal Rainsport 3 tyres.
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  6. #6
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    on my vw up, there is a ditigal display that I can switch between different things to show, and one of them is the coolant temperature
    2015 Up! High 1.0

  7. #7
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    oh okay, so as long as it doesn't go over 110 it will be okay? I read somewhere that 110 or over is generrally overheating
    2015 Up! High 1.0

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