I'm in the process of purchasing a 2011 XJL Supersport. Current owner bought it with 11K on the odometer, and it is at 72K now. He doesn't recall ever replacing the water pump. So my question is: Do you think this could still be the original water pump? I saw on another thread how to tell if its the original pump from how it is hooked up (or what is hooked up to it), so I guess we will find out when I receive the car. I had a PPI done. Inspector said this was the cleanest Supersport he has seen. Just wondering aloud if the pump could have lasted this long? Thanks all!!

 

when purchasing a Jaguar just pay the money for peace of mind and get it done now, if you have extra cash get the thermostat done, usally i say if its not broken dont fix it , but in Jaguars case just get it done ,just my 2 cents

 

Thanks Dennis! I agree that I need to replace it b/c it's just a matter of time. But, has anyone had that many miles on their engine and still had the original water pump? Just curious.

 

Nice. Enjoy. The Supersport was the X351 model lineup's pinnacle of combined luxury and performance. After that, performance may have improved, but the luxury factor decreased.

 

Replaced the water pump on the 2012 XJ (100.000 KM) one year ago, as I thought wrongly it was leaking while in fact the culprit was a plastic manifold.

The original water pump which I removed was in perfect shape.

 

Wow Thierry! From what I understand about these water pumps, that's a pretty impressive feat to have yours last that long!!

 

Don't throw parts at your car!!
This is a well known problem and here is how you handle it.
Check your oil and coolant REGULARLY!
The car will start losing coolant and you will have a strong cooked anti-freeze smell around the engine compartment. These are the symptoms you are looking for. The people that destroy their engines are the ones that drive blind. Never check anything and won't pull over at the FIRST sign of over heating.

If you do replace the water pump we are currently using one with 3909 in the part number. These have been also known to leak. Don't know if Jaguar will do another update on the pump or not?

Since you have a 2012 listen to the engine on cold starts with the radio off and the drivers door open. You want to be listening for timing tensioner issues as they will rattle a good bit long before they reach the failure point.

So again keep on top of your car. You now know what and where to look and check. It will pay off and you will have peace of mind knowing things are OK.
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+1

My dealer told me to wait since the most recent version of pump still fails about as much (from their experience so far). I am at about 22K miles now.

So I plan to keep close watch for any signs of coolant escaping for any reason then deal with it all then.

 

Thanks all for the advice. I've been searching and reading this forum for months, before finally joining. And now I'm on my way to my first purchase of a Jaguar! Can't wait to become a more active member, with more insight, as I start my Jag journey!! I will post some pics once all is finalized and delivered!!

 

Just anecdotally, it seems the XF's have a higher incidence of water pump failures than the other models. I would guess that there's something about the design of the whole cooling system that makes the XF more susceptible. I'm just guessing but Jaguar probably has actual statistics. I'm on number four at 60K miles but out of the four, one did fail almost instantly after installation (faulty?) and they replaced it again under warranty so discounting that, figure on a new water pump every 20K miles. The crazy thing is that if that's what you expect going in, then it won't bother you when it needs replacement at 25K or 50K. The last one I had fail was a 3909, the current part number has been out now for about four years. There were seven part numbers before that, almost one a year so I think Jaguar has given up. It doesn't appear to a problem on the newer models and they have little incentive to try to build a beefier pump for earlier models. Last couple I did myself and this time I'm trying an aftermarket unit. It's been about a year and a half so far. Knock on wood.

Depending where you buy, you can get lifetime warranty on an aftermarket pump, or buy it on Amazon and pay I think $15 extra for a 3-year warranty and just keep switching them out. Its actually a very easy job on this engine. Not like my old Corvette which has three belts and brackets for the alternator, a/c compressor and p/s pump all attached to the water pump that have to come off first. You think cars used to be simpler, but its a major ordeal to change a pump on an old Chevy. The Jaguar is just two intake ducts, one belt, a few hoses, four bolts and its off, then put it back in reverse. Shops charge "book hours" and are probably overcharging y'all by at least an hour, not to mention the parts mark-up, but if you are a DIY'er, don't let fear of the water pump stop you from enjoying a Jaguar.

I would mention tho that at 72K miles, its probably overdue for a service that we call "the big plastic". You can search for that in the thread title. There are some coolant pipes attached to the engine, one at the front and one at the back, made of PA66 nylon that's only good for about ten years in normal use. Next time you do the water pump, you want to replace those pipes too as long as you've got to drain the system. And its also a good time to clean the intake valves (you can read other threads about direct injection and gummy intake valves) since you'll have access to them while replacing that rear crossover pipe.

 

Indeed, but then that car was always driven rather gently with respect to its potential (except some journeys on German Autobahns at Vmax😎 ) in the quite moderate French climate.

Also, remember a forum concentrates the issues, people who don’t have a problem with their water pump don’t post. Having changed mine brings peace of mind, but from its aspect I’m quite sure it would have last for quite some additional mileage.

 

Thanks again, everyone. pdupler, thanks for the info. on the plastic cooling pipes as well. I've read about that issue. I'm inclined to do as much work as I can on my own. Time, space, and some betters tools are my limitations (probably the case for a lot of us!! LOL). Good news is the sticky button issue with the interior has already been addressed by previous owner - so one less thing on my list!!

 

2011 SC here, 64k miles, original water pump still working. I have all the latest parts ready to go at first sign of failure.

 

Good post pdupler! I thought we had several reports of the latest 3909 water pump failing too. Thanks for documenting that.
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