XK / XKR ( X150 ) 2006 - 2014

Coolant leak on backside of engine- '10 XKR

Old Sep 16, 2022 | 08:16 AM
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Default Coolant leak on backside of engine- '10 XKR

Hey Guys, in the year and a half I've owned my XKR I haven't had a single issue and have done only typical maintenance. I came home the other night after a short drive, maybe 6 miles, and it was about 70 degrees F, and after the car seat for an hour I noticed a small puddle of coolant.

I got a decent pic this morning of the area where the leak may be coming from-this seems to be coming from above the bellhousing. Any suggestions on what I should consider looking for first?

I don't yet have a manual, so can't really tell what lines are below the SC and all the spaghetti hoses on top of the engine. Any assistance would be helpful.

Thanks!


 
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Old Sep 16, 2022 | 08:46 AM
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Classic leak of the front to back valley hose for the throttle body. Dozens of threads about this. Sometimes it’s something similar but it’s about time for your 5.0 litre to have ALL of the cooling hoses and pipes and related parts to be replaced.
 
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Old Sep 19, 2022 | 11:29 AM
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Thanks, I did some research over the weekend and found a few similar threads, which did confirm my issue for me, thanks!

I was not able to find a parts list on what things I should change while I have the SC off. Does anyone have a list like this handy?

Thanks
 
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Old Sep 19, 2022 | 12:39 PM
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I don’t think you mentioned mileage, but you’ll want to inspect the manifolds for carbon build up, replace spark plugs, check injectors, replace PCVs, check valve covers for leaks, replace rear heater crossover, replace front crossover, replace throttle body hoses, replace super charger gaskets, replace oil cooler tube and inspect water pump, inspect super charger and snout pulley for slack/play
 
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Old Sep 19, 2022 | 05:46 PM
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About 75k, water pump was within last few thousand miles, so ok for now with that. Injectors were all replaced at same time, plugs, too.

I'll look for those other parts, thanks!
 
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Old Sep 20, 2022 | 09:42 PM
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may seem obvious but do change the supercharger fluid.
 
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Old Sep 21, 2022 | 05:10 PM
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ACTUALLY, I had this problem also; leaked coolant on the torque converter cover. I had EVERYTHING done. Turns out the only leak was on the Oil Cooler. I didn't know it was an oil/water one. Anyway, that was leaking onto the trans. Regardless, that's a supercharger off thing anyway, so do EVERYTHING.
 
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Old Sep 21, 2022 | 06:37 PM
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Engine Coolant Outlet Flange - Jaguar (AJ814007)
 

Last edited by IanXF; Sep 21, 2022 at 06:41 PM.
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Old Sep 22, 2022 | 05:48 PM
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Originally Posted by Cee Jay
ACTUALLY, I had this problem also; leaked coolant on the torque converter cover. I had EVERYTHING done. Turns out the only leak was on the Oil Cooler. I didn't know it was an oil/water one. Anyway, that was leaking onto the trans. Regardless, that's a supercharger off thing anyway, so do EVERYTHING.
Thanks for the heads up, but I'm a little lost here. Where was the leak originating from?
if anyone has a write-up on SC removal I would really appreciate it. Any parts lists would be helpful, too. I have seen a lot of suggestions, just getting a little lost in the size of this job.

 
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Old Sep 22, 2022 | 06:15 PM
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The tube I mentioned in post #4 between the water pump and the oil cooler. Are you attempting to complete this repair yourself, it's rather involved.
 
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Old Sep 22, 2022 | 07:26 PM
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Originally Posted by Speedagent
Thanks for the heads up, but I'm a little lost here. Where was the leak originating from?
if anyone has a write-up on SC removal I would really appreciate it. Any parts lists would be helpful, too. I have seen a lot of suggestions, just getting a little lost in the size of this job.
I'll do a little more searching. This thread is from the X350 forum and is on the 4.2 liter but it should give you a concept of what it takes to R&R a supercharger:
https://www.jaguarforums.com/forum/x...valley-134108/

Also look at this thread there are a couple of videos and on showing the removal of the SC:
https://www.jaguarforums.com/forum/x...thread-248243/
 

Last edited by Sean W; Sep 22, 2022 at 07:34 PM.
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Old Sep 23, 2022 | 01:01 PM
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Originally Posted by jahummer
The tube I mentioned in post #4 between the water pump and the oil cooler. Are you attempting to complete this repair yourself, it's rather involved.
Yes, I've just not worked on this car before so wasn't really sure where to start and what to avoid when disassembling.

Thanks for the links guys, I'll do some digging. I'm headed to the dealer for parts tomorrow.
 
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Old Sep 30, 2022 | 11:00 AM
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Update: shop quoted me $3,120 for this work. Just replacing a hose. I'm moving the car to another shop later today. They originally quoted me $1500 over the phone for the same work.

If you're in the Atlanta area and need advice on shops, I will let you know who to avoid in a private conversation. I won't post the shop's name here.
 
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Old Sep 30, 2022 | 11:49 AM
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Originally Posted by Speedagent
Update: shop quoted me $3,120 for this work. Just replacing a hose. I'm moving the car to another shop later today. They originally quoted me $1500 over the phone for the same work.

If you're in the Atlanta area and need advice on shops, I will let you know who to avoid in a private conversation. I won't post the shop's name here.
"A" hose. There are several that should need replacing since they'd be right there handy. No sense to pay $2000 for all that labor and not pay the extra $200 for the rest of them.
 
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Old Sep 30, 2022 | 12:05 PM
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Originally Posted by Speedagent
Update: shop quoted me $3,120 for this work. Just replacing a hose. I'm moving the car to another shop later today. They originally quoted me $1500 over the phone for the same work.

If you're in the Atlanta area and need advice on shops, I will let you know who to avoid in a private conversation. I won't post the shop's name here.
Problem's there's a lot of labour involved because of where the hose's located. Make certain whoever does the job, knows what they're doing and as we all keep saying, make certain you replace EVERYTHING which's not already recently been replaced to avoid paying for the same labor over and over again.
 
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Old Sep 30, 2022 | 01:16 PM
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Understood, but my issue is not the hoses and lines to be replaced. I have a parts list for all of the maintenance items in addition to the leaking hose, and I will be doing them all.
 
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Old Sep 30, 2022 | 03:36 PM
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Originally Posted by Speedagent
Understood, but my issue is not the hoses and lines to be replaced. I have a parts list for all of the maintenance items in addition to the leaking hose, and I will be doing them all.
I did that also. Replaced all lines, water pump, thermostat, supercharger isolator, oil cooler, MAP sensor, had the SC inspected and serviced, two new belts, intake valves inspected (still okay) and replaced the four injectors I didn't have replaced when one side took a crap.
Now everything is great, and it cost me $6k.
 
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Old Sep 30, 2022 | 05:02 PM
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Wow, that's a lot. I've taken it to another shop nearby. My family has experience with the owner who has extensive German and exotic car experience (this intro would have been helpful yesterday) and I'll update after they've taken a look.

Side story; I sent a text to the previous owner a couple of days ago asking about the water pump and if he could recall when the water pump was done when he owned the car. When we were negotiating he did mention that he had had the water pump done but didn't include it as one of the receipts he provided me. He was an honest guy so I thought reaching out he probably would remember. His wife texted me back a day later to let me know that she didn't recall when the water pump was done but that I could call the dealership where they had the car serviced, and that her husband died six weeks ago. Sad.
 
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