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Errr - my pump was replaced in the UK in May, and that was the part number that was fitted. So, I think it's universal - perhaps no-one is selling any on the UK grey market yet.
Here is the current info I received last week for my 2010 XKR from a VERY experienced Jaguar Dealership Parts Manager that I trust.
Note the last part about a pipe revision.
+++++++++++++++++++++++++++++++++++
Regarding the water pump and its numerous revisions, there will be three pieces you need to replace that the same time
AJ813909 PUMP-WATER 1 216.46
C2Z18658 TUBE 1 20.79
AJ811539 O-RING 1 4.84
If you have to replace either of the hoses on the front (#4/6 below) then you will have to replace them both. They changed design (again, big surprise) where they block off part of the smaller one
Ok, so I know it's been over a month, but to follow up on my earlier post - the water pump change wasn't too bad. New one is in and the jag is purring once again. Couple of things to point out. As I said before, getting the old one out seemed impossible, but I finally found the ONE way that worked to just clear the radiator support and the thermostat housing and remove it from the engine compartment. This was worse than one of those bar puzzles, where you have to get the metal ring off the stirrup-looking thing...
Anyhow, take note of these 3 pix, they show the only way that the pump will fit past the other gorp:
Another shot:
Last one:
That was a puzzle. So glad I didn't have to start removing a bunch of other stuff. No getting it out through the bottom, either, that way is more full of stuff than the top. As you can see by the very off-center impeller, this pump is definitely shot:
The other thing to note is that in my earlier post I said that there were 6 bolts holding the pump on, but that turned out to be wrong, there's only 5, so I took one out I didn't have to. It's hard to see down there, so if you're going to try this, a small mirror might help. Here's a pic from the top showing the bolt that didn't need to be removed:
And here's a pic from the front showing that bolt:
After that, clean the gasket surfaces up real good, use the new gasket that came with the water pump, a little Indian Head Gasket Shellac, (I use that on anything water-related), bolt it all together and c'est fini...
Belts and pulleys after that. I bought a new serpentine belt while I was at it - that's a no brainer. If you're spending this much time, the extra $50 is nothing.
I didn't try to get any special pump from Jaguar or try to track down a certain part number - maybe I should have? I just got a replacement pump from my local parts store. I think it was a CarQuest for about $90. And a couple gallons of brand-new Prestone, mixed with some distilled water from Publix and job done. Only other hitch, was I had to buy a set of big 3/8" drive allen head sockets because on the top of the blower there's a vent plug, and you have to open that and pour in coolant to properly fill the system, and that plug takes a 17mm allen wrench. Course, I don't mind buying tools, then you have 'em for the next job.
All told, got the whole thing done for a little under $200. If you're handy with this sort of repair, or want to be, I recommend doing it yourself.
C2Z31146 was used from VIN (B54142) To VIN (B56764) then C2Z31587 was used from VIN (B56766) To VIN (B56780) then it changed to AJ813909 so your prospective purchase wouldn't have originally had the latest one.
Maybe I'm lucky, or maybe YOU guys are NOT lucky.
My 2010 with 64,000 miles doesn't have a water pump problem. It was just in the shop and the tech checked it out. No problems.
Course, it MAY have been replaced before I bought it off-lease without my knowledge.
Maybe I'm lucky, or maybe YOU guys are NOT lucky.
My 2010 with 64,000 miles doesn't have a water pump problem. It was just in the shop and the tech checked it out. No problems.
Course, it MAY have been replaced before I bought it off-lease without my knowledge.
. FYI..........If you are curious in finding out if your water pump was previously replaced by a Jaguar dealership, Jaguar can look up all previous warranty work. I had them do it for me for the few years before I purchased my car from the original owner.
I often "Google" Jaguar part numbers - just the part number alone. Usually find several sources, usually Jaguar OEM.
But, when I Googled AJ813909 got several aftermarket sources using the Jaguar part number. Presumably, but maybe not, these mfg/vendors are making water pumps that exact Jaguar specs for AJ813909 .
Here is the current info I received last week for my 2010 XKR from a VERY experienced Jaguar Dealership Parts Manager that I trust.
Note the last part about a pipe revision.
+++++++++++++++++++++++++++++++++++
Regarding the water pump and its numerous revisions, there will be three pieces you need to replace that the same time
AJ813909 PUMP-WATER 1 216.46
C2Z18658 TUBE 1 20.79
AJ811539 O-RING 1 4.84
If you have to replace either of the hoses on the front (#4/6 below) then you will have to replace them both. They changed design (again, big surprise) where they block off part of the smaller one
My 2011 XK (10k miles on odo) was at the dealer for waterpump replacement and I got the car back about 10 days ago.
During the first 4 days, the coolant level dropped for about an inch in the expansion tank and now is relatively stable as far as I can tell just below the MIN mark (cold). After I got the car back from the dealer and drove it, there was still a faint smell of coolant from the pump and under the throttlebody area. In the 10 days since I got the car back I have now put about 400 miles on it, including on rainy days, and the coolant smell continues to be noticeable (albeit less than before the waterpump repair).
Before the dealer exchanged the pump, I asked them whether it wouldn't make sense to also exchange other parts in the vicinity. I mentioned the front cross-over pipe. They said no.
Now I started to investigate whether they replaced the corresponding XK-parts that Dave describes here above.
- C2Z18658 TUBE 1 20.79
- AJ811539 O-RING 1 4.84
My search shows that the C2Z18658 TUBE 1 20.79 is listed here to fit not only XKR but also my 2011 XK. Same for AJ811539 O-RING, also listed to fit 2011 XK.
On my bill I can see that the dealer did replace both, C2Z18658 TUBE and AJ811539 O-RING when putting in the new pump.
NOTE - C2Z18658 TUBE is a short stub style outlet tube. It is different from the entire front cross-over tube (Y-shaped) (see also here), this is a different part with number AJ89664.
What should I do next to get rid of the coolant smell? Wait for more time/miles to pass in order to permit coolant residue to disapear?
Replace the entire Y-shaped front cross-over tube?
BR
ter
ps: it is unbelieavable how many hours the engine of the XK stays warm after driving. With late summer middle European outside temperatures with the XK parked in the second underground floor from morning to evening, i.e.approx. 9.5 hours, the engine is still hand warm when touching it under the open bonnet. Maybe normal with large V8's; they are not everyday engines here in Europe!
Assuming that you do not have a coolant leak, then the coolant smell must be from residual coolant from your first leak.
There is an open space/valley beneath the intake manifold; and it is possible that some coolant seeped into this area.
This valley area should be impervious to water/fluid. Suggest using a garden hose to gentle flush this "valley".
BTW, my recent experience purchasing a '13 XK with just 6K miles. It had two previous owners and was a "garage queen." I had occasion to remove the intake manifold - beneath was an extensive nest of organic crumbs, presumably the prior home of a rodent.
During the repair, there's lots of coolant that gets spilled into all sorts of nooks and crannies. There could literally be a pint of coolant to evaporate. Add a little to get it back just into to safe range (the technician should have made a better effort to make sure all the air bubbles were out, but lets just assume he didn't for now). Make a mark on the reservoir and monitor the level over the next few months. Mine dropped about 4mm in the 8 months since the last repair but I'm not sure that's enough for alarm. There hasn't been any odor, or at least not since the first few days. The work is warrantied through December so I'm keeping an eye on the level. As much as I've read on here, I think we just have to plan on replacing water pumps every 25K to 50K miles as a regular maintenance item.
Anyone found their pump got noisy while it was on the way out? I just got my late 2009 5.0 XKR and I suspect a coolant leak, can smell something sort of sweet and hear something a bit like a dry bearing on engine startup for a few moments. Wondering if that's another symptom of the pump, or something else...
Mine didn't make any noise, or none that I noticed, but there was the candlewax/burnt-plastic smell after parking. However, it is the bearing that goes in the pump, so it could well be noisy. Is there any way to check if the pump has already been replaced? - e.g. check with whatever garage has been servicing it?
08-25-2018, 07:32 AM
