With a reflective surface, I don't think you'd get a reasonable differential, since a big component of what the thermometer would see is IR reflected from something else.

Actually, polishing Al makes very little difference as it turns out. An IR thermal camera at work came with a list of emissivities:
Aluminum, polished: 0.05
Aluminum, rough surface: 0.07
Aluminum, strongly oxidized: 0.25

I tried one of these IR thermometers to set up my baseboard heating system at home: shiny copper has an emissivity of 0.01, so I couldn't get anything meaningful off the pipes. But when I stuck on some black plastic electrical tape (E=0.95), then I could get a reading.

Sorry for the long-winded aside...

 

Ultimately I guess the charge cooler removes most of the heat through conduction into the coolant but there will be some emission through radiation, especially given it's large surface area. Polishing it to a highly reflective finish would reduce the infra red emissions (heat loss through radiation) significantly I would think. Good for protecting the hood but not so much for cooling efficiency.

 

 

2014 F-Type under CPO warranty. Dealer says coolant leak is crossover pipe and quotes $1600 to cover the repair. I can find the part sub one hundred USD. I believe JLR covers labor but not the "hose"... am I getting misquoted here?

 

Coming from the XKR to the F-Type, this makes my blood boil. I plan to keep this car for a long time and just don’t need all the problems I encountered with the XKR.

 

Drove the car from Detroit to visit family in Chattanooga, one morning decided to drive The Tail of the Dragon and after some spirited driving in a 90 degree day noticed coolant temps a smidgen above normal, I pulled over and let it rest for a while. After a few miles, low coolant warning came on and as soon as I stopped steam was coming out of the hood vents. Had the car towed to the closets dealer in Chattanooga at the tune of $500, still waiting for a diagnostic, it has been 3 weeks and they haven't touch it claiming they lost a Tech to California.

2015 V6S 52,000 miles.

 

I hope you still have plenty of Warranty left, if not get ready to dish out some cash. The "Coolant Lines" are an Engineering failure, the material these lines are made of cannot withstand the heat that is being smothered by the "Engine Shroud and Hood", they become so brittle over a period of time that they shatter like glass, Jaguar know's of this problem yet refuses to have a recall, there has been a TSB released to all dealers and Auto repair shops of this issue. I not only had to repair the "Over Flow" lines, i had to have the line repaired under the "Super Charger", (ching,ching). Angry , frustrated ? YES I AM, to say the least. Thank you Jaguar for not addressing this issue.

 

Is this problem of coolant lines becoming brittle only for certain years of the car?

If all it would take to avoid the problem is to cool the engine compartment better I could do that. I got rid of those plastic hood vents without much ventilation and installed the wire mesh hood vents from Mina Gallery. It would be easy to get rid of the engine shroud.

 

I can't tell you what years they have used this material for the coolant lines and /or what models. What i can tell you is covering your lines with a mesh product can help and/or removing your engine shroud would help also which is what a lot of owners are doing. Only problem is, it doesn't address the lines that are beneath the Super Charger or lines that are hidden behind the engine. The worst case scenario is being on a trip somewhere and one of these lines just falls to pieces being so brittle. "YOU WILL BE STRANDED". To make things right JAGUAR needs to have a recall on these lines, they know it's a problem but it's big bucks to repair shops and JAGUAR dealers. Good Luck, traveling!

 

I KNEW there was another reason I removed my engine cover!

 

Good luck, Miauuu, Please keep us informed of the repairs that are needed to get you back on the road. Thanks, 15 FTYPE 281

 

Is this repair covered under CPO warranty?

 

The parts aren't expensive, it's the labor. If you can do the work, it's not that bad.

 

If you purchased the CPO through a Jaguar dealer it should but it depends what type of warranty you purchased also, there are different warranty's for different sections of your car ex: Engine /Tranny, AC/ Climate control etc. normal wear and tear like brake's etc are not covered. Used car dealers have their own type of warranty's so be sure and talk with your Sales person on what coverage they are offering.

 

Since some on this post asked, here's an update of my issue.

https://www.jaguarforums.com/forum/f...2/#post2107626

 

I recall reading on XK forum that there are metal pipes available... it would be a poor decision to update bad plastic part with new bad plastic parts.

I think all F-type affected, but are too new to be impacted. We will know in a couple years how pervasive this problem is as earlier F-types start failing. It is Very Common issue on XK/XKRs.

 

The new pipe is a one piece molded part vs the original design two part ultrasonic welded design which was separating at the seems. No need for metal.

 

Are their signs of imminent failure?

 

All i can say jaguny is be very careful when touching or moving those coolant lines, you don't realize it but they have become very brittle. I'd suggest buying the overflow lines that come from the reservoir to the front of the engine from a dealer , they are reasonable, $25-30. Just to be on the safe side.Takes 3 minutes to install if you need to. cya.
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