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Thread: Oil Pressure Warning Light

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  1. #1
    Join Date
    Sep 2009
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    Wakefield, West Yorkshire
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    Oil Pressure Warning Light

    A week ago (or around that time) I discovered that oil was leaking underneath my Roadster every time I drive it. I checked the engine bay and noticed oil residue around the top of the dipstick and a great deal of oil residue underneath the engine.

    I also noticed that the temperature guage reading was lower than normal.

    The car has been driving fine however I have started to notice the oil pressure warning light blink on and off occasionally. On the LCD computer screen a warning also appears telling me to switch the engine off.

    I have put extra oil into the engine and checked the dipstick and all appears fine after the top up. However since topping up the oil pressure warning light and computer screen notification has started to appear again. I am aware that the warning is about low oil pressure not low oil level. I added the extra oil in light of the oil leak.

    I am concerned about this, I hope someone can shed any light on why the warning may be appearing. I know I now need to get the car looked at asap.
    -----------------------------
    2003 450 Smart ForTwo Passion - SOLD
    2003 Smart Roadster 80 109ps SW-Exclusive Remap

  2. #2
    Join Date
    Apr 2009
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    Ecosse
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    Does it happen during hard cornering or heavy braking?

  3. #3
    Join Date
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    Wakefield, West Yorkshire
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    Quote Originally Posted by pinger View Post
    Does it happen during hard cornering or heavy braking?
    Not that I've noticed. Seems to come on when the car is at a standstill mostly or slowing down?
    -----------------------------
    2003 450 Smart ForTwo Passion - SOLD
    2003 Smart Roadster 80 109ps SW-Exclusive Remap

  4. #4
    Join Date
    Nov 2007
    Location
    BANCHORY
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    Measure your oil pressure.
    Drives a Smart Cdi - 65 to 85 MPG

  5. #5
    Join Date
    Sep 2009
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    Quote Originally Posted by tolsen View Post
    Measure your oil pressure.
    How do you do that?
    -----------------------------
    2003 450 Smart ForTwo Passion - SOLD
    2003 Smart Roadster 80 109ps SW-Exclusive Remap

  6. #6
    Join Date
    Apr 2009
    Location
    Ecosse
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    This is one of the rare instances where I'd suspect the light.
    If it is well topped up then unlikely to be caused by surge. If it was failing oil pressure chances are the light would be flickering when the engine is idling. Have a look for the pressure sensor and check if the wire to it isn't bare and shorting.

  7. #7
    Join Date
    Nov 2007
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    Quote Originally Posted by monolith View Post
    How do you do that?
    You connect a pressure gauge.
    Drives a Smart Cdi - 65 to 85 MPG

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