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HELP? Coolant message

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Old Jun 21, 2007 | 10:41 PM
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HELP? Coolant message

Hey all,

I went ahead and got my window washer fluid tank replaced today due to a leak on the bottom of the tank. but after the tank being replaced, a message on the dash popped up. it says, "CHECK COOLANT"

I checked the coolant, its still quite high, drove the car around a while, normal car temperature, no over heating, no check engine.

I drove the car to a nearby mercedes dealership, and the lady at the front desk had told me, "its probably the sensor ticking off"

So I was wondering if you guys have any clue what might have really happened?!?
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Old Jun 21, 2007 | 10:44 PM
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I get that message when my windshield washer fluid is low. Id check to see if the washer fluid is low.
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Old Jun 21, 2007 | 10:51 PM
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Coolant level low does not mean high engine temp.

Not to worry, I got that msg some time ago. I was checking my coolant level at every stop. I added some distilled water, and away it goes. Trust the temp sensor to tell you what is happening.
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Old Jun 21, 2007 | 11:06 PM
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Originally Posted by C24owner
I get that message when my windshield washer fluid is low. Id check to see if the washer fluid is low.
hmmm, My washer tank is empty, so maybe thats why it ticked off the coolant???????

hmm wow atleast I know im not alone lol
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Old Jun 22, 2007 | 01:49 AM
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Originally Posted by C24owner
I get that message when my windshield washer fluid is low. Id check to see if the washer fluid is low.
good to know !

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Old Jun 22, 2007 | 09:00 AM
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Originally Posted by Saprissa
good to know !

yeap, I was thinking I have a faulty sensor
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Old Jun 22, 2007 | 03:12 PM
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i got that message last week but i just did a service B and i did a coolant flush.. but most of the time its the windshield wash fluidis low.. so u should be ok.. Gary did u fix the click sound fromthe rear wheel?
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Old Jun 22, 2007 | 06:07 PM
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Originally Posted by WaveyKat
i got that message last week but i just did a service B and i did a coolant flush.. but most of the time its the windshield wash fluidis low.. so u should be ok.. Gary did u fix the click sound fromthe rear wheel?
well mike,

I didnt really "fix" anything, but the sound hasnt been comin up, its not as bad as yours, its just a small "tick" every time the brake is applied and released.
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Old Jun 23, 2007 | 03:43 AM
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Originally Posted by C24owner
I get that message when my windshield washer fluid is low. Id check to see if the washer fluid is low.
Yup. They are based off the same sensor. I found that out when it happened to me early on.
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Old Jun 23, 2007 | 03:09 PM
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Same on our SLK last week. These sensors are poo, cost about $10. The level was fine but we added a cup of water and the light went away.
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Old Jun 23, 2007 | 03:59 PM
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Originally Posted by Buellwinkle
Same on our SLK last week. These sensors are poo, cost about $10. The level was fine but we added a cup of water and the light went away.
Actually, I think mine was very similar Buellwinkle. When they told me the sensor was the same for both, I told them that they just put in Windshield Washer fluid and I put some coolant in the night before. They must've done the same as you and were able to get the light to go away. Haven't had the problem ever since that one time.
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