It probably won't, or it will only help for a short time.
If you check it often(which EVERYONE should anyway), the just unplug it and go on with life. :)

https://www.rx8club.com/attachment.p...1&d=1306456156

There are 2 plugs by the coolant bottle.

Just to clarify, which one do you disconnect? The smaller grey plug on top, or the bigger black plug on the bottom?

Gray one!
Here, I circled it for you!


https://www.rx8club.com/attachment.p...1&d=1306459127

Cool. Thanks!

New bottle is about $80.00 if your build date is after July 05 cause you don't need the sensor itself(you will use the old one) and 110.00 if you are before July 05 build date..............if you want to get one. Build date can be found on drivers side door jamb plate I believe.


http://www.finishlineperformance.com...cat=336&page=1


It's not the sensor that goes bad, but the float and that is inside the bottle with no way to get to it.

vibration on the car.
 

well my coolant light is on. i disconnect the sensor. now i have some kind of vibration on the car. is pretty bad. it vibrate like crazy. that happens after the car is warm. itr may be. because of the coolant light or what?

Ahh, Just thought I would let you know that disconnecting the coolant sensor has nothing to do with any kind of vibration, totally separate issue.

In addition to coolant sensor problems, I also have vibration - the mechanic I use said it was the motor mounts - they have slowly gone bad due to age of the car (8 years old this fall) and cause the engine to vibrate - mostly sitting at idle.

Nothing at all to do with it as Ash points out below.....unless you unplugged the wrong sensor?

Read more about this sensor by clicking below, but that's not your issue!
Search rx8club via Google

I think this was previously mentioned, but you can simply put the car in neutral for 3-5 seconds, and the light will go away (at least it does for me). I'm assuming that if I was truly having a low coolant level issue, putting the car into neutral would not help the light turn off. I guess if you have an auto this might be a bit trickier / not possible, but at least for those of us with manual transmissions it's a simple fix. In fact, possibly even just pressing the clutch in for a few seconds may work - I'll try that next time.

Thought
 

i was haveing my same light come on get the codes for your car ran. can be a coil/spark plug or wire issue if u get the miss fire codes. i got P0302 miss fire 2 checked it fixed it and car runs fine no light poping up anymore

Huh?
The coolant light has nothing to do with trouble codes.

Someone needs to do a little more reading!

Click here

Having the same problem as we speak. Temp. OK, coolant OK, but light comes on & off. Just one more thing.........

Hopefully you've read enough to know you can just unplug it and check coolant often?
It's either that or get a new bottle. Depending on year, you may or may not have to but the sensor.

Or you can leave it alone, then enjoy the light show or make up tales like I do.

Ken

Detaching senso
 

Excuse the ignorance here, but is there a trick to disconnect this sensor? For the heart of me I cannot pull it apart and don't want to force it and cause more damage.

Thanks.

There is a lock tab on all connectors to prevent it from sliding out. Using a small flat-head screw driver, push the tab outwards (inside the connector), and it will slide out easy.


.

Take your time until you find the tab. You must push in(as said) while pulling on the top plug............and you don't really need a screwdriver. Once you do one................look at both parts of it as nearly every damn plug in the car will be some variation of that.


If I'm not mistaken, the tab is on the portion of the plug that will stay attached to the bottle and will be at the bottom outside of it of that bottom plug. Sort of looks like an upside down "T" when looking at it and it has what looks like grooves or slots in it, just push that in while lifting on the top plug. I hope that makes sense?

All you people pulling the plug to turn the low coolant light off be sure to post here when you water pump fails, the car is spewing coolant, and your notification is steam from under the hood, okay?

It happened to me while my sensor failed in the dead of winter before I had a chance to replace it.

By the time the sensor goes off your engine is already over heated.

Not sure it would help in your case.

Anyhow, sorry to hear what happened to your car.

Especially in the winter!

mine does the same thing ,if I am taching over 7k rpm coolant light comes on

I doubt that :boring:.

If the low coolant sensor was working, I would have known the level was low getting low. When water pumps go bad, they usually start dripping slowly first.

Then it's just like the old days......nothing new.

We always warn people about that and tell them to check the level frequently if they are going to unplug the sensor and not buy a new bottle because they are too cheap, don't want a new one, can't afford it, or can't be be bothered. It then becomes more of your responsibility rather than relying on something else to do your job for you(so to speak).
In your case, yes, the light would've gone off..........let's assume it was a weep at first. You probably would've filled the bottle back up and went on your merry way. Hopefully you would've noticed some coolant on the ground over a few days, if you didn't then......oh well.
Now........when and/if it turned into a major leak, it would've overheated pretty fast which would've been evident not by that sensor, but by steam, lots of coolant on the ground, or the dummy gauge in the car. The car should be been turn off immediately until the problem was rectified.
In some ways.........this is akin to somebody waiting until the TPMS comes on for them to check the tire pressure, or waiting until the oil light comes on to check the oil.

How frequently (in hours, days, weeks, miles, etc) do "we" recommend checking the coolant level for both cases of the coolant level sensor working and not working/disconnected?

Please answer the same questions for frequency to check air pressure and oil level related to TPMS sensors and oil level sensor working and not working.