I understand your frustration. This issue would have cost me a new engine if I didn't catch it before complete failure of the part.
One word of advice, though - whether you sell the vehicle or not - unless your car is under warranty, find an independent mechanic you trust or at least a shop people you trust employ. The dealership will always be significantly more expensive for any service or repair, and will follow whatever policy is required by the manufacturer to address any given repair. That stands for virtually any auto brand. Just a suggestion to save you some $ in the future.

 

I no longer have a dog in the fight, as we divorced ourselves from Jaguars, earlier in 2024. However, I had a reasonably decent relationship with my Jaguar dealer for over 20 years, prior to our "dust up" in February of '24, and this relationship allowed me to have open access to the service department and the technicians, as well as the parts department. From what they told me, around '22-'23, the redesign of the plastic coolant pipes took effect on the 2018 models, which for us, left us with one "good car", our former 2020 F-Pace, and one "questionable" car, our former 2016 XJ-L. I looked into having the coolant pipes switched over to the aftermarket metal pipes, but the dealer balked at installing aftermarket parts on a car. The only thing they would do, was to install the post-2018, redesigned pipes on the XJ-L.

However, returning back to my initial reason for the comments, to me, the fact that they, Jaguar, redesigned the pipes, and the dealers more or less acknowledge the deficiencies of the earlier pipes, as well as the catastrophic issues that can occur when the pipes fail, if an owner experiences issues with these pipes, the company should step up and cover the costs of updating the pipes, and repairing any damage incurred, either in or out of warranty, notwithstanding. We're not talking about $20,000 Kias, here, we're talking $65-90,000 dollar luxury cars............

 

If you read around other brand forums, you will see many similar debates. Every car manufacturer makes cooling pipes from plastic materials - has been the case for well over a decade or two. Sometimes they fail with a small leak and a low coolant warning lets you know in time to have it looked at. But as a pressurized system they can also fail with a large split or break allowing the coolant to rapidly dump out. Modern aluminum block engines are very susceptible to overheating and it happens fast

So while it's true that the pipes with a 'seam' appear to be particularly prone to splitting, any plastic pipe that is heated and cooled under pressure again and again will fail over time

I don't see that Jaguar or BMW or Audi or anyone else could reasonably be expected to cover failures in plastic cooling pipes 8 years into the life of a vehicle

 

You’re absolutely right. Less people are complaining about the plastic parts failing. Most folks are complaining about the 500 milliseconds you have to shut down your engine when a plastic coolant part fails.

Give us a bit more time?

 

Well stated!

While I was introduced into the world of Jaguar by my wife, who loved them, I was pretty much a General Motors kind of guy, for over 40 years, 1970-2015. During that time period, the GM cars that I owned had a "basic" system of cooling "plumbing", consisting of two larger diameter hoses (upper and lower) that connected the engine to the radiator, and two smaller diameter hoses that connected to the heater. These hoses were pretty accessible, easy to remove and replace, and fairly modest in cost. While some of my cars I didn't own long enough to require replacement, a couple of them I did, or have, owned them for quite a while, and simply replaced them after 5-6 years, as general maintenance. And with respect to water pumps, although then seem to be a common replacement item on Jags, I never replaced a water pump on any of my GM cars, in that 40 year time frame.

So, I believe this to be why Jag owners are frustrated....

 

Yes. The water pump is odd. It's a Bosch part, standard design, so I don't know why so many fail. I had 3x on my old XF (over 12 years)..

I hear you on the plastic pipe failure. I think it needs a pressure sensor not just a temp sensor. Issue with a temp sensor is if it rapidly dumps coolant then there is no hot liquid on the temp sensor and the engine block cooks fast. A rapid pressure drop in coolant could come with an emergency alarm..

That said we have seen a lot of stories of people saying the low coolant warning came on or the engine overheating warning and they were 'only 2 miles from home' so tried to limp it back. No.1 advice if the coolant is low or temp is high - stop the car. Straight away. Think it needs a more 'urgent' warning for that..

 

Guess I got lucky then!
Twice now, first time about seven years ago and last time about five years ago, I got the "low coolant" warning due to the infamous expansion tank tube having cracked/split at one of the two thin end pipes.
Both times I limped the car home about two miles while the temp gauge never budged above the usual half way mark, but as we now know the temp gauge reading cannot be trusted.
Both times the expansion tank was around 1.5 litres below full/max so still some 5 cm worth sitting in the bottom of the tank (just low enough to trigger the warning on the dash methinks).
Both times no actual overheating or damage to the engine.
My theory is that because the coolant leak was relatively high up in the coolant system the leak had pretty much played out by the time I got the low coolant warning, and there was still enough coolant in the system to prevent any overheating.

 

Yes. Exactly. That's right at the top of the system so it will loose pressure and the water in the expansion tank. But it won't dump the entire coolant...

 

I had the 2017 jaguar f-pace 35t and the 2017 Jaguar XE 35t both experience the same issue. I also contacted jaguar and they told me there was nothing they could do about either vehicle. My XE is sitting at Jaguar right now because I'm not sure what to do with it since they told me it would cost me about $40,000 to fix and the F Pace cost me $20,000 to fix it would be awesome if there was some sort of reimbursement from Jaguar for this issue

 

Sorry to hear of your trouble. 20k-$40k seems crazy high for coolant system repairs. Did the motor overheat to the point of needing a new engine?

A full system rebuild at a reputable independent involves pulling the supercharger. If you're just talking coolant, all pipes refreshed cost less than $1k in parts, and less than $5k in labor, anywhere in the USA at an independent.

 

My XE 35t is at the Jaguar dealership in San Jose , CA. The dealership is the one that told me it would cost $40,000 or so to fix the vehicle and the F Pace 35t broke down while I was passing through Santa Rosa so I took it to one shop that fixed the y pipes and the pipe that goes right under the supercharger but then after I got the vehicle back within 5 miles it was a head gasket so they told me that they weren't sure how to work on jaguars after they did some repairs and charged me $4,000 for that and then found another shop (Wayne and Son in Santa Rosa California) that said bring it through they would fix it and told me it would cost about $11,000 or so to fix I said okay I then left town and flew back to Ohio to visit my mom while they worked on my vehicle and then got an update in my email where they told me it was going to cost 20,000 instead of the $11,000 that they originally quoted me because they had to replace all these other parts that did not seem related to the head gasket and do not look to be defective or bad at all because, I told them I needed the parts that they took off the vehicle so I could inspect them and they told me they would not release the vehicle until full payment was made. the vehicle only has $36,000 miles on it so there is no reason for those parts to be bad. they charged me over 40 hours of Labor at $180 per hour(most searches state that should only take 10 to 15 hours to change the head gaskets on a jaguar f-pace) some of that time was to test drive my vehicle that they gave me back on a completely empty tank. I did get them to drop some of their price down because they were charging me 30%-35% markup value on all parts including my fuel and oil and antifreeze which they then told me they had to do three oil changes with the most expensive oil filters I've ever heard of. When I flew back I called them as soon as I arrived in SFO told them that it was going to take a while for me to get up there and I might arrive a little after 5:00 which was their closing time and the their response was are you going to pay the overtime to have people stay at the shop for half an hour because I was arriving at 5:15 instead of 5:00 I would definitely suggest never taking your vehicle to these people.

 

Yeah, that sounds horrible. Sorry to hear of it and yes it does not sound like the right shop.
A head gasket on a V6 or V8 is a huge job. 15-20 hours just to get to the heads. If it's been overheated to the point of warping the block, it's done in the sense that it costs similar or more to resurface it properly if you can even get the open deck flat.

A fully remanufactured engine from Tapa in California, or even a used motor would be less than $10k parts. I had my engine replaced on my XJ for 45 hours of labor, for less than $6k in Wisconsin. Even with California labor, that figure should hold water.

 

I happened upon this thread and thought I'd add some of my thoughts. I just went through the y-pipe failure on my wife's 2018 F-Pace Prestige (right at 50,000 miles, almost to the fourth zero). Some pics below of the process, but likely no one on this thread is unfamiliar with so I'll save the narratives at each pic. The total repair, and upgrading all of the plastic pipes I could with aluminum, was about $250 including replacement anti-freeze. I also replaced the water pump and the oil intercooler in the center of the valley for that price.

I have not been able to read through every post here on this giant thread that goes back several months, but from some of the frustrations with Jaguar (Jaguar's design) and as a retired mechanical engineer, I wanted add some additional thoughts (and I might have missed similar thoughts, so maybe not new). And, before I start, I will say, this coolant system is one of the worst designs I've seen on any car in 40 years. It's like this design was done as a high school shop project.

For some years now, a couple decades or more, car manufacturers have been under pressure by EPAs to use materials in the car that are more biodegradable, materials that do not plague the Earth for the rest of eternity. Plastics is one very big item that has a notorious past. New plastic formulations, ones that use natural products in the manufacturing process such as soy products have helped this cause, at the expense, of course, of early failed parts. All cars now use plastics in the car, wire coatings one of the most notorious, meant to break down quickly vs. the older formulas. Ask anyone who has lost a complete electric system in a car because rodents find this new soy product a tasty treat. I thought of this especially for those suggesting a class action suit. That would be one technical trial!

 

Hi Peter,

That's unfortunate but the same exact thing happened to me, no warranty. The dealership wants 30K to replace the engine.

Can you reach out to me via email raleighnc07@yahoo.com

Thanks,

Chris

 

To all in the unfortunate situation of needing a replacement engine. Skip the dealer if you want to recover the car. $10k INSTALLED for a used engine will get you on the road at a capable mechanic.

 

File this under the more things change the more they never seem to change.
I've been reading this thread with some bemusement. You see ... I've been looking fora comfortable high performance SUV and Even though I was under the impression that Jaguar is just about dead in the USA you can find Fpace SUVs and in particular the SVR model sounded interesting. I've had a 2005 S-TYPE R since 2010 and yes I ran into the various cooling system plastics issues as well as the dreaded $14 hose under the supercharger that burst. I took a shot at replacing it myself but I found that I had become too old to do the repair. I let the car sit for 4 years and then found the right mechanic who knew these cars, used to work for Jag at their headquarters in NJ. Well almost $7K later we did a lot of other while you're at it stuff at the same time it got fixed and runs superbly and reliably now. If any of you want to see how much I suffered look for on that forum for my threads. I also complained bitterly about all the same crap y'all are in this thread, came up with a few superior solutions but that GD hose was a real MF'er..

So when I became curious about a Fpace SVR I decided to call my mechanic. Oh my did I hear a load of stuff, all very familiar. I heard about the plastic pipes in the rear which are now available in aluminum, reservoir tank... Honestly? Jaguar should have already learned that lesson. I think they have, they just don't give a crap about you.They build for the leasing customer. Most auto companies do that now. As an example of the changes over the years, I also have 84 Maserati Biturbo which was a notoriously unfinished car as delivered but I fixed that too. It still has it's original plastic coolant tank @ 80K miles and 44 years later! Anyway I'm not going anywhere near this car because I've already paid my dues and upgraded my 2005 STR which while not nearly as fast is now much more reliable and a lot better looking.

 

Peter… I just had to replace my y pipe for the second time due to failure. From what I can tell, they are on their 3rd design for this. I’m looking to bring legal action, as JLR refuse to acknowledge faulty y pipes that have become a known problem. I’d love to start a list of people who have had similar problems. I have a 2017 F Pace S. This engine was also used in the F Type, which is having the same problem.
-Matthew

 

Hi Peter. I purchased my 2017 35T in September '23 with about 145K km from a Jag dealership. About a week after the purchase I had a sudden loss of all coolant while driving due to failure of the cylinder head coolant pipes. The coolant pump was also leaking. Fortunately, my engine did not overheat before I could park. Because this occurred within 30 days of purchase the dealer replaced everything at their cost.

 

My 2015 v8 f-type engine melted after a coolant system failure. I replaced the engine with a remanufactured engine. The mechanic used metal y-pipes instead of the plastic ones in the reman engine. Lots of threads over in the f-type forum. I recommend getting metal y-pipes if you have to have them replaced again.

 

I have the exact same issue at 60000 miles.