Now that’s a first I’ve heard. If you’re just topping off then maybe air pockets yeah…

Ours went about 21,000 miles zero issues or anything, then the coolant started going down. We’re at 28,000 miles now.

go figure…

 

Exactly the same for me. Low fill from the factory, topped up and three times more with just a little glug. 100-200ml approx. Never dropped below minimum and has remained stable for months. 23000miles done now.

 

Maybe there is something to the idea of "air gaps" or some such.

My 2020 110S P300 with 44K miles just went through a cycle which began with a "low coolant" warning. I had not added coolant previously.

A week of so after adding the coolant, I received a check engine light fP0128 for "coolant below operating temperature". This I could not clear for two days, it kept returning -- suggesting that either the thermostat was stuck open, the sensor was bad, or the thermostat was operating in an air pocket.

I was then able to clear the warning and the gauge temperature variations have swung back to normal.

I have not needed to add more coolant.

I will let you know if anything exciting happens next.

Enjoy!

 

Oh Lord something new to worry about happening. . . . .

 

I wouldn’t worry about it. I was out traveling when I got my first “low coolant” warning. Ignored it for over 1,000 miles before topping off. No harm, no foul, no over heating, no problem.

 

So I’m from the Netherlands and we’ve got a 2019 Defender D240 with approx. 55k miles. At about 40k miles the coolant notification in screen started popping up. Checked the coolant wasn’t low so took it to Land Rover. They carried out their ‘tests’, conclusion: no problems no leaks. After the visit the notification kept popping up. Basically every drive. So took it in again before going on holiday to the South of France this december. Again done their tests and no problems. Returned on the 5th of January and within 2 hours of the drive the car started bugging, cut-out power message. Took it to the side called the AA, and now we’re stuck in France at 5AM. **** rental for the remaining 600+ mile drive and the car had to wait for transport to The Netherlands. We then got the car back after 4 weeks, they replaced some parts and we thought it would be all fine. Picked it up and on the 15mile drive from the dealership all hell broke loose again. Same problem smoke out of the exhaust this time as well. Car went back on a flatbed to the dealership. And besides that the communication from the dealership was absolutely the worst I’ve ever experienced, not being informed saying they’ll call me tomorrow not getting an answer. Just got a call today after 2 weeks of their investigation. Car needs a completely new engine! 22.5k €, luckily under warranty but I was almost at the 60.000mile mark. Before we got notice of the new engine I actually went in to the dealership. Warranty was ending and wanted to buy the new D300 MHEV, came into the dealership went to the reception and told her I was here to buy a new car, she told me the sales people where busy. Slight change of plans but I’ve now instead got the new X5M lci on order set to arrive in June. Customer service is absolute **** and the cars aswell. Defender looks so good though…

 

Deja Vu. Had that exact story happen on a Jag. Low coolant, no answers, died at a stop light one day... and the new engine took 4 months. Everything was good after that except it you would be driving and, every couple of months, it would put itself into park and shut down. Only happened at 2-5 mph but it would lurch and slam before it would then go into neutral. They never figured that one out either. You could never have a drink without a lid in that car.

Sounds ridiculous but I'll never not do an exhaust gas test again in a low coolant situation.

 

[QUOTE=NativeTexan;855944]And here is the response from my SA about the empty coolant reservoir being topped off and then me smelling coolant strongly after good 1+ hr drives… “It is possible that you are smelling the coolant that gets pressure released through the reservoir cap as it does this to not get too high of a pressure and boil the coolant. It is still worth verifying so I will let the technician know to do the overnight test drive for you!” Idiots! The boiling point temperature of the coolant goes up with pressure increase. This is the reason the systems are pressurized, to be able to operate in a higher temperature range. The SA 's must think we're all dummies!

 

This is my second lease - in 2021 my Velar smoked on the freeway from the constant Engine coolant problem that South Bay Land Rover could not completely fix. I replaced the car with a 2022 Discover early in 2022, now Engine Coolant light is coming on even though the service dept. says it's full. This is the 2nd time in 12 months I'm having this problem. This is ongoing.

 

Leak in the intake hose?