Today while driving on the highway at about 65/70 mph the red coolant triangle light came on. I pulled over and let it cool for 10mins. I turned it back on went to the dealer, which was 45mins away. I finally got to the dealership the temperature gauge only went 3/4th way. Never hit red. Someone looked at it there and said a coolant hose broke and there’s coolant leaking into the engine. They will update me more Monday. The 36k mile maintenance was done 5 months ago there. It will be covered under warranty. Kinda cool thing about this is that they gave me a 2020 Range Rover as a loaner and sheeeeeeeesh it’s beautiful inside/out.

I bought the car at the Jag dealer for $22k w/ 36k miles. Located in TN. Never had any problems with the car until now.

Should I be worried about the future with my XF?

 

So, you got a red coolant light and the car overheated, you stopped and let it cool down, but then drove for 45 minutes. Did you not first check for low coolant ? That 45 minute drive may have wrecked your engine ! Modern all-aluminium engines are very sensitive to overheating caused by low coolant. Having lost coolant the temperature gauge cannot possibly work correctly because it relies on the sensor being covered with coolant.

 

Hi Vosams..
Which dealer gave you the near $100k loaner?😀
Nice!

Anxious to see if any engine warping occurred from the 45 minute drive with low coolant...
And if the CPO Warr claim gets covered considering the XF wasn't flatbedded after hose failure..

Sorry for your issue and fingers crossed!
-mikey

P.S.: Our forum matched your topic to the following thread;
1 year older but exact same AJ126 engine I trust:

https://www.jaguarforums.com/forum/xf-xfr-x250-44/major-coolant-leak-228570/

 

I checked the coolant, it was low. The tech at the dealership told me over the phone to take my time driving to them. So I did that. I’m not worried about them not honoring the warranty. I rarely drive the car. My 330i is my daily. I’ll know more Monday hopefully.


— The RR is a Velar. I think it’s maybe 50-60k not 100k. It’s the r-dynamic version since it’s posted everywhere. I don’t know what that means either lol.

 

[QUOTE=vosams;2254261]I checked the coolant, it was low. The tech at the dealership told me over the phone to take my time driving to them. So I did that. I’m not worried about them not honoring the warranty. I rarely drive the car. My 330i is my daily. I’ll know more Monday hopefully.

Well sir, this tech is a complete IDIOT. If its leaking and overheating, you absolutely NEVER drive it until coolant system is repaired. You will need a new engine and hope they dont kick the claim due to driving with it overheating for 45 minutes. Ive seen this multiple times where people drove it until it either dies or runs bad and always ruins the motor. If coolant got into motor, its R.I.P. engine.

 

Judging from coolant just being low and temperature being hotter than usual but not overheated I would say it's OK and not terminal. Coolant in oil is not a good thing though.

No. First I've read about this happening on a X260. Keep us posted. I'm curious about what broke/leaked and what they did to return the motor to health..

 

It never went to red. I wouldn’t drive on it with it on red obviously. It just got up to 3/4th way MAX. Never red lined it. Will keep you updated. Waiting on call today to find out everything.

 

Howdy again..
Any word from your dealer tech?
Also, I wonder if the 3/4 mark was because not enough coolant was in the system to bathe the sensor?
Best Hopes either way mate!

 

I have attached what they fixed. I guess there really wasn’t coolant in the engine like he told me over the phone.

 

Shouldn't make a difference as the block would still get hot enough to transfer the heat around the sensor even if there were no coolant at all IMO.

 

AJ813909 (water pump revision #6?)... yay!
And 4.8 Lobor Hours noted.

Glad to see full coverage..
And this was under your original factory 5yr/60k warranty?

I wonder if CPO Warr would've covered this at 100%..
Happy your engine is not R.I.P. as some of us feared.

Thanks for posting!

 

[QUOTE=vosams;2255257]
I have attached what they fixed. I guess there really wasn’t coolant in the engine like he told me over the phone.[/QUOTE

Good news! Also it looks like they replaced all the cooling pipe/parts under the supercharger that are so hard to get to. Why do you think there was no coolant remaining? I think it would have easily red lined the temp gauge with no coolant present.

 

Yes it was covered under the factory warranty. I hope no more issues. I rarely drive it since I have two other vehicles. It stayed under a car cover the whole time since I bought it. Only put 4k miles on it since sept 2019.

 

I highly recommend you also change engine oil right away, overheating episodes degrade oil a great deal.

Also, pay extra attention to blue or black smoke out of tail pipe and engine oil levels (both gain and loss are bad). Engines that overheat tend to go one of the two ways - head gasket failure due to warped heads, pistons that no longer seal due to hot spots and cylinder scoring.

 

Not necessary.

First, when you have no coolant, coolant temperature sensor makes no contact with coolant and instead measures air temperature inside the coolant passages. That does not represent actual engine temperature.
Second, Jaguar temperature gauge is a running average. It does not show you actual temperature due to some strange decisions by JLR engineers. So what you see in your dash is what happened 5 minutes ago.

 

After spending weeks on this excellent forum, wife and I just purchased this '17 XF CPO today. 34k miles now and CPO till 5/2024 or 100k.
3.0L engine performance very nearly matches the 5.0L in the '12 XJ I drove yesterday.
Both sound great but quite different of course.

Ride quality was actually a tad better in the XF and the CPO made it a go.

I called 3 Jag dealers (Virginia, Michigan & Florida) who each confirmed the vin# is indeed CPO. They each also confirmed that CPO cars ARE getting full coverage for any burst cross-over / y-pipe, thermostat housing seam, coolant pump or other "TSB documented cooling component failure."

That was a huge relief and inspired our purchase today.
Premium with Cold Weather & LED/Vision for $24,998 US.
Cheers! And thanks for everyone's insights here.

 

F1 has started again! Soon Jaguar will be back at e-Prix Racing.. (Tags were renewed online)

 

Congrats! I hope you enjoy the car. I just bought a '17 XF R-sport w/ a couple of packages and 49k miles for $23,990 +TTL. It wasn't CPO, but I do have a local dedicated Jag mechanic whom I trust (and he's a legend on these forums as well) that will save me immense amounts on any required work. I still have about 10k miles or 2 years left on the original warranty; hopefully that won't be necessary.