Question about 2000 Jaguar XK

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Engine coolant low

Hi Folks,
My dashboard display is showing 'engine coolant low' intermittently despite the fact that I topped it off with water two weeks ago. When I attempt to clear the error, the red LED remains on. Temp indicator on the dash has remained at mid point over the two weeks, no problems with over heating.
Is the engine coolant water only? Also is it fed from form the pipe inlet under the hood just below the wipers only?
Am totally paranoid about it now and am reluctant to drive it in case I do damage.Would REALLY REALLY appreciate any advice you can provide
Rgds, Gavin

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  • GavinDelaney Jul 01, 2008

    Hi D,

    Appreciate the prompt response. I will check the terminals on the level switch as u suggested. I am 100% sure about where the coolant goes in the cooling circuit under the hood but i just wanted to be sure that this is the only access point for it as the damn LED remains on.

    Anyhow, thanks again mate

  • Larry David Sep 13, 2008

    Hi everyone,

    It seems like I am experiencing a similar problem to you.

    I was wondering if I could get someone's advice to the problem I am now have. I own a Jaguar XK8 Coupe '03 and I switched on the engine this morning (fairly normal weather conditions) only to see "Engine Coolant Low" appearing on the dashboard. The temperature gauge on the right was as normal, in the middle and the engine sounded fine. I switched it off for ten minutes and started the engine again. This time there was no message and the gauge was normal. However, I have noticed that on the Engine Coolant temperature gauge red segment light at the top is constantly on. I have topped up the coolant with some water and hear no noises at all and smell nothing.

    Can anyone help / advise how serious this could be? In your experience, do I need to talk to my bank manager to get this fixed, or is it a relatively simple hose replacement?

    I appreciate any help and thanks in advance.





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Hi Gavin,
I'm no expert on Jaguars, but if there is a "low coolant" warning light when there isn't "low coolant" it may be that the level sensor has got poor electrical connections, possibly due to corroded or dirty terminals, or the sensor may be faulty. If there is a removable electrical connector on the container where you add coolant, that might need checking.

The cooling system should be a mixture of water and "antifreeze / summer coolant". I don't know where you live but the car manual will tell you the correct mixture to use. The stuff you add to the water contains corrosion inhibitors and other chemicals to make the engine last longer.

But there will be several different liquid containers and filling points under the hood and you mustn't get them mixed up!

Coolant expansion tank - where you top up coolant
Windscreen washer liquid tank
Engine oil filler
Brake fluid / hydraulic systems reservoir
and maybe others too.
These should all be clearly identified in the users manual - well worth a read.

If these suggestions do help you solve the problem, please give my reply a rating to help others judge my knowledge / guessing skills.
If they do not, please add a comment with more details so I can try to help you further.
Cheers, D

Posted on Jul 01, 2008

  • Richard Raynor Jul 01, 2008

    Thanks for your reply, and I hope you find the cause of your problem easily. D.



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Posted on Jan 02, 2017

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SOURCE: Engine coolant low

All autos should run a coolant mixture of 50% water, 50% anti-freeze. BMW in particular have their own formulation of anti-freeze they highly recommend you use instead of any other brand.

If your temp gauge is at mid point on a BMW it is a little high. Could be that you have too much water in the mixture and it isn't cooling properly. There is an over flow (usually plastic) which runs out of the radiator. It is here that you replentish coolant. NOT in the radiator.

At this point I'd be more concerned with where that coolant is going. I don't have to add water to my Beemer more than once a year.

Maybe you have a bad temperature sensor. Maybe a bad thermostat. At any rate, at this point I'd bite the bullet and go see the man at the BMW shop.

Better safe than sorry.


Posted on May 23, 2009

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