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Recently car has been losing a lot of coolant, luckly it's the return hose from the Heater Matrix (it leads all the way near the supercharger intake and then it lays somewhere behind the engine into the heater matrix i think) I think, the coolant lose is significant when the climate is on, either on cold or hot. I have been trying to find it but to no avail even looked up the diagram for the coolant hoses and only thing I could find was that it's position is near the the vent hose. Can somebody more skilled help me out to find the hose? I would had removed it myself but It's to complicated and it's pissing down here in Romania at the moment and I don't have a garage to pull it out and take the number from the hose itself. I will be posting photos with the banged up hose.
I have circled it with red, tried finding it in JPART and SNG, to no luck. :/
Edit: Until the new hose arrived I was thinking to the hose after the cocked up part, and try to put it there with a garden clip so at least I can run the car around. At the moment my XF is in service for a timing kit change and I highly doubt I will be able to get soon. Is it risky? I will have to pull a little from the hose so It fits and it will be a bit streched out, can I expect suprises if I do this ímprovisation?
After looking at all that I "think" you need either XR841497 up to VIN N38936 or C2C26618 which has been superseded by C2C28125 after that VIN.
Again you did not post your VIN? Jaguar does everything by the last 6 digits of the VIN.
With a few searches it appears that C2C28125 has been discontinued.
You can try here as they are good with discontinued stuff and it says to contact them. Obsolete SC Hose
Since this looks hard to find if you do get one post back to help the next guy.
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Last edited by clubairth1; Mar 31, 2025 at 07:54 AM.
After looking at all that I "think" you need either XR841497 up to VIN N38936 or C2C26618 which has been superseded by C2C28125 after that VIN.
Again you did not post your VIN? Jaguar does everything by the last 6 digits of the VIN.
With a few searches it appears that C2C28125 has been discontinued.
You can try here as they are good with discontinued stuff and it says to contact them. Obsolete SC Hose
Since this look hard to find if you do get one post back to help the next guy.
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My bad it’s not that hose I pulled it up sp it’s easier to spot the crocked one, the hose that went bad is right below near a plug on the left and on the right there is another hose, here is an image circled, the hoses that lead to the supercharger are in good condition.
tried removing it to see what part number it is, but to no avail. I will take it to my mechanic, but first and foremost I have to go there with the hose, no point trying adventures, it only leaks with climate turned on. Me thinks it might lesd into the heater matrix.
Sorry no help as I can't tell what hose that is.
I would look carefully at the other hoses because you will need to take a good bit apart and you might as well replace all the rubber stuff while your in there.
The threads I linked are about a complete hose change and you should be able to find what your looking for.
As I stated in those threads my 2005 STR had 18 hoses and I replaced them all. These SC cars with IC's just have a large number of hoses to change.
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Well. I just re read your initial post and you say it goes to the heater matrix. If so my advice is completely wrong. Looking at the last photo again i see you have two hoses on the water rail whereas i only have the one so no help from my car. Sorry
Sorry no help as I can't tell what hose that is.
I would look carefully at the other hoses because you will need to take a good bit apart and you might as well replace all the rubber stuff while your in there.
The threads I linked are about a complete hose change and you should be able to find what your looking for.
As I stated in those threads my 2005 STR had 18 hoses and I replaced them all. These SC cars with IC's just have a large number of hoses to change.
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Anyway took to some research and with the help of Mr.Roel from SNG NL and before that I searched the entire internet for diagrams, it is a hose that is feeding the EGR Valve behind engine, it has nothing to do with the Heater Matrix. Main cause, old age. No aftermarket, only original, I suggest people to buy one you never know 2-5 days delivery time.
After looking at all that I "think" you need either XR841497 up to VIN N38936 or C2C26618 which has been superseded by C2C28125 after that VIN.
Again you did not post your VIN? Jaguar does everything by the last 6 digits of the VIN.
With a few searches it appears that C2C28125 has been discontinued.
You can try here as they are good with discontinued stuff and it says to contact them. Obsolete SC Hose
Since this looks hard to find if you do get one post back to help the next guy.
.
.
.
Thank you for your assistance clubairth1, most likely I will be replacing all of them this summer, but for now this will do. I broke bank in a XF 2013 3.0 AWD Supercharged about 4000€, all coolant pipelines, thermostat, timing chain kit, gearbox oil with pan and hydraulic filter, rear and front diff okl, transfer case, and many others. Hopefully I won’t have any suprises, have been owning the car for 3 months now and haven’t even drove it for more than 50 km due to this things needing service. Not to mention I gifted my dad a XJ12 5.3 1989 with 80.000 km on board, we have to make that kitty pur aswell now.
Got me a handful of things and this hose breaking down almost added to my depression and anger. But I can’t complain been owning the STR since 120.000 I have clocked on it now 150.000KM besides some bushings and whatever and normal servicing not an issue, should I look out for anything besides coolant hoses? Maybe you have yours for longer and I could do preventive maintenance. Thanks tho! 👍🏻
Yes I would recommend changing the DCCV since it's a high failure item and it's attached to a number of cooling hoses anyway. Another thing not mentioned but I had to replace my top tank twice. It's VERY easy to break the small nipple if your leaning on the tank while working on the engine.
I had a 2005 STR and drove it from 22K to 132K miles with little problems other than coolant leaks from the rubber hose and the DCCV. I finally lost the under SC hose at 119K and the water pump at 120K. The only back to back failures I had.
I am sure by now you have serviced the ZF transmission?
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Yes I would recommend changing the DCCV since it's a high failure item and it's attached to a number of cooling hoses anyway. Another thing not mentioned but I had to replace my top tank twice. It's VERY easy to break the small nipple if your leaning on the tank while working on the engine.
I had a 2005 STR and drove it from 22K to 132K miles with little problems other than coolant leaks from the rubber hose and the DCCV. I finally lost the under SC hose at 119K and the water pump at 120K. The only back to back failures I had.
I am sure by now you have serviced the ZF transmission?
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Hi, I actually had them serviced, waterpump 3-4 years ago, coolant tank was replaced 4 years ago because the return hose pipe was broken on the tank (truly a masterpiece of engineering making it out of plastic) return hose replaced as well, thermostat replaced last year, gearbox serviced last year, all arms and bushings replaced in the front last year, braking system had a complete overhaul, rear and front pads with rear discs and decided to go for a better option and add some perforated (M-TEC BRAKING UK, highly suggest them good quality blanks, mintex if I am not wrong) on the front, differential oil change, dccv replaced last year with one from
gates the oem was to expensive and it’s the same as the gates one, replaced it due to the heating not working in winter last year, turns out it was a mere auxiliary heating pump for climate (my mechanic did that) oem part was to expensive and no option for aftermarket, my mechanic pulled it out and replaced the brushes within the pump and it’s working out wonderful, blows saharan hot air, sparkplugs replaced last year with NGK, 2 years ago I replaced the supercharger oil and I think that is all, can’t remeber anything else, ohh and I change filters and oil every 6000 km, since I mainly use the car 80% within town range and rarely take it out of town on long trips. I think it’s decent, trying my best to take care of her, itMs a little bit costly, but it always brings a smile to my face when I floor it.
the only thing besides all the coolant hoses that are left are, supercharger coupler (I hear it like a can full with marbles a little common issues on Eaton's to my knowledge, had it replaced on my XF with eaton original sourced part), rear suspension bushings and arms.
Ohh and as preventive maintenance I had replaced the PCV valve as well. Bought it on OEM, costed around 50€ definitely worth the money, car started acting like new when I had it changed, changed it completely, I suggest you do it as well, usually they need replacement after 60-80k km on supercharged or turbocharged engines, on naturally aspirated it’s suggested at 100-120k km.
quite pleasant speaking with somebody else regarding the endeavours of owning an s type r.
i will be most likely servicing the gearbox again this year, due to the fact that you can’t drain the converter like in a bmw, and you completely flush it by doing regular servicing.
I tend to treat the cars more closely when regarding the service intervals, due to the fact that in my 27 years of life I have come to the conclusion that the saying “You are what you eat” should apply to all things owned in life. Especially since I want to prove people that ownership of a Jaguar is no horror, as long as you treat them as ment.
also **** dealerships and their 20.000-25.000 KM oil and filter servicing, those morons are the main issue why there is a bad reputation around Jaguar, if only they forced people into 7000-12000 km range of servicing this brand might had been a true competitor to BMW. (This coming from a kid that has lived from a fragile age mainly around Jaguars, got the sickness from my dad)
and the last thing, i had to cut the hose where it was broken and temporarily fastened it to the pipe so it does not leak anymore, at least until next week when I receive the hose, truly a mastermind engineer has the idea to put the EGR behind the engine…
That hose you are going to be replacing I believe runs under the supercharger so you will have it off and you can do anything you want with it. Also, you can clean the big intake manifolds if you want, and you will have access to everything underneath that supercharger. There are some really good write ups on this forum about taking the supercharger off and everything you can do while it is off. That is if you are doing the work yourself. There are also a couple threads that have comprehensive parts list for the work that will be done. Member aarcuda did his a couple years ago and made a nice list
Surprised you have the snout noise on the old M112 blower? I have only seen and heard that on the later 5.0 and 3.0 DI engines with the TVS blower. Or were you talking about the 3.0 XF?
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Surprised you have the snout noise on the old M112 blower? I have only seen and heard that on the later 5.0 and 3.0 DI engines with the TVS blower. Or were you talking about the 3.0 XF?
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Nope it’s the M112, I will post a video, maybe I am becoming schizophrenic 😂
S Type R Coolant leak, can't find hose code.
