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Thread: 2.7L TDV6 oil pressure light

  1. 27th February 2026, 07:57 PM #1
    TonyC
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    2.7L TDV6 oil pressure light

    Hi All,

    I've just done an oil change on our 2012 2.7l TDV6 D4, I now don't have an oil pressure light.

    Is the sender anywhere near the oil filter? Could I have accidentally unplugged it doing the filter?

    To be honest, I can't remember ever seeing it, but I don't drive it much, that's my excuse and I'm sticking to it

    Back under the bonnet tomorrow.

    Tony
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  2. 27th February 2026, 08:23 PM #2
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    woko
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    The d4 oil pressure light only comes on when the engine loses pressure for 4 seconds when the engine is running. If you have a scan tool you cav check that it's off
    It doesn't leak oil, Its sweating power
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  3. 27th February 2026, 09:11 PM #3
    TonyC
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    Quote Originally Posted by woko View Post
    The d4 oil pressure light only comes on when the engine loses pressure for 4 seconds when the engine is running. If you have a scan tool you cav check that it's off
    So if you turn on the ignition without starting the motor you don't get the oil light???

    I have a GAP tool, I'll have a play tomorrow.

    Tony
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  4. 27th February 2026, 09:12 PM #4
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    woko
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    That's right. No light
    It doesn't leak oil, Its sweating power
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  5. 27th February 2026, 09:18 PM #5
    TonyC
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    The owner manual states,
    "Illuminates as a bulb check when the ignition is switched on and extinguishes when the engine is started.

    Tony
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  6. 27th February 2026, 10:01 PM #6
    BradC
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    Quote Originally Posted by TonyC View Post
    Is the sender anywhere near the oil filter? Could I have accidentally unplugged it doing the filter?
    Yes, it's forward of the filter at the front of the vee. I'd struggle to see how you could accidentally unplug it however.
    MY08 D3 - The Antichrist - "Permagrimace". Turn the key and play the "will it get me home again" lottery.
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  7. 27th February 2026, 10:30 PM #7
    DiscoJeffster
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    The light will light if it’s unplugged I’m sure. The light also shows when you press ignition- contour your foot on the pedal and just press the button to enable the ignition. Make sure you see the oil pressure light lit. Then repeat with the brake pressed and make sure it extinguishes once running.
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  8. 27th February 2026, 10:30 PM #8
    DiscoJeffster
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    Quote Originally Posted by BradC View Post
    Yes, it's forward of the filter at the front of the vee. I'd struggle to see how you could accidentally unplug it however.
    Exactly. Impossible
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)
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  9. 28th February 2026, 04:12 AM #9
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    woko
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    Quote Originally Posted by TonyC View Post
    The owner manual states,
    "Illuminates as a bulb check when the ignition is switched on and extinguishes when the engine is started.

    Tony
    I just double-checked mine, and it doesn't come on. My previous d4 was the same.
    If you want to check it, ground out the wiring to the pressure switch and start the engine.
    It doesn't leak oil, Its sweating power
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