I had every plastic coolant pipe as well as the water pump replaced last year by Jaguar with all OEM parts. My car is a 2010 XK with 15,800 miles. I've driven about 1100 miles and noticed yesterday I had to add about 2 1/2 ounces of coolant since the original pipe replacement. The level had been completely stable for 6-7 months. I understand that the system needs to bleed out the air after the install however my install had the vacuum fill. Since our systems are pressurized I would assume there should not be any coolant loss. Is evaporation a possibility with very hot weather (live in Florida) even in a Jaguar pressurrized cooling system? There is no coolant smell at all. How much coolant loss is acceptable in our cars or should I be going back to Jaguar to recheck my system? Thanks all.

 

No one has any feedback?

 

Any coolant loss on the AJ133 needs to be investigated immediately. After a cold soak, preferably overnight, have the cooling system pressure tested to check for leaks. If a Jaguar main dealer did the work, it may be best to have them check the system.

Should the instrument cluster display 'Coolant Level Low' stop the engine immediately or catastrophic damage may result.

 

Lost a total of 2.5 oz in 1100 miles.

 

Did you top it off again and see if this is a once off , maybe an air bubble or similar . I would and if it happens again take it in.

 

I had a breakage with the connecter laying on top of the engine. Once repaired, refilled and stable, there were two occasions where the system needed a few ounces of coolant. I consider it a delayed purging of air, especially since it is known to happen with this motor. Then in the Spring I will put some cardboard under the engine, to monitor liquid drips.

 

Since this has been the first top up since my complete coolant pipe replacement and since it was a total of 2.5 oz, I will be watching closely to see if it reoccurs.Also, the level had been stable for many months and I thought it was suspicious to occur after 9 months from the work done. I'm hoping it might be some phantom air bubble somewhere that decided to purge itself and nothing more. There is absolutely no coolant smell whatsoever, which usually reveals leaks. Thanks all.

 

That won't help a bit, there is a tray on the bottom of the car in the front. That catches everything already.

 

Cardboard is useless. With our cars, most leaks (unless severe) will not show on the floor. Between the undercarriage covers and the heat of the engine, nothing gets to the floor. Leaks are quite prevalent and need to be investigated with diligence as many are not so easy to find. Another reason to replace as many plastic hoses and lines as feasible when one failure is discovered. Ask me how I know this?........