Have a 09 XK with 65k miles. Have read in various forums that the water pump should be replaced around 50k miles. Have had no problems with the water pump but should I be proactive and replace the water pump?

 

I've moved your question from X100 to X150 forum.

Graham

 

I did it this year with 60k on the clock. No signs of problems, but wanted to change it for a newer (as there are couple of revisions).

But reasonable me says - keep until it fails

 

I replaced my 2011 XK water pump at 32,000 miles. It was not leaking but the pump bearing had failed, the pulley was wobbling around like it was on a universal joint. I couldn’t understand how it wasn’t leaking. What had failed was the Y pipe coming out of the valley under the intake manifold. That took a little more finding.

 

Given the low cost of a good water pump for these cars, I would replace it IF I was in deep anyway. Aka the “Whole I’m In There” logic.

Like valley hoses. I’m already pulling the supercharger; I’m replacing tons of cooling system hoses and access is basically special Ed math easy. Then I’d do it. Otherwise if it doesn’t leak and there is no wobble, wear or resistance when spinning the pulley; don’t just replace it for the hell of it.

 

^^ samzies

 

I would NOT have started a poll as a simple YES or NO is not a particularly useful response.


My 2014 XK is approaching 70K miles and I haven't replaced the pump. To me it's the wrong side of the 'preventative maintenance' line.

That being said, I'm reviewing my position on parts as availability has changed with the pandemic. Before last year I could have ordered anything that wasn't in stock at the dealer and it would have been delivered from the JLR parts distribution centre in Frankfurt, Germany the following day. Covid has changed that. Many parts are not available or have lengthy lead times because manufacturing has been disrupted.

I might buy a pump and keep it on the shelf as a precaution against not being available when needed but I wouldn't replace one that's operating properly.

Graham

 

There's a big difference in the life expectancy of the water pumps in the 4.2L and 5.0L models. The OP is in Texas, so his 2009 is a 4.2L, which is nowhere near as troublesome as the 5.0L. Search this Forum for 4.2L owners whose water pumps failed.

If it ain't broke, don't fix it!

 

Well, I do understand a new owner of the X150 drawing a conclusion that this may be an appropriate plan of action. After all, look at the number of threads and posts on the subject of water pump or overheating.
FWIW, my '07 xkr, which gets driven year round, and sometimes quite hard and with >160,000 on the odometer is working just fine. With the original pumps.

Mind you, plugs, injectors, cats, belts, hoses, ALL fluids, ALL filters, thermostat, wheel bearings, BUSHINGS, control arms, brake pads, rotors, bulbs and BATTERIES have been replaced at one time or another. And some of these components multiple times.

I could just preempt the next failure or unsettling noise and change it all again... or wait for the event, as I always do.

 

Following on from GGG's thought that a spare water pump on the shelf at home might be a good idea, I thought I would also check for myself. The Jaguar-boxed item does seem to be out of stock, but in Germany at least, there are plentiful supplies of SKF, Valeo, Mahle, Magneti Marelli, Hepu, and other equivalents. The Jaguar one must be made by one or more of the bigger OEMs. I don't think I will stuck if the pump does suddenly need replacing.

What was interesting though is that the part number that matches my XKR is the same as that for a whole host of V8 Jaguars and Land Rovers dating back to the 4.0 X100 from 1996 and also including the 3.2, 4.2, 4.4, and 5.0 litre engines. Most of these don't have a reputation for leaky water pumps, do they? I would also be inclined to leave working water pumps in place unless the mileage is getting high and there is work to be done in that area anyway. If other belt tensioners are wearing, that is probably the time to swap out the pump. Here, the known branded pumps are 40-50€ each, so no big deal when they go, but regular checks for leaks isn't a bad idea

 

I prefer to use OEM parts on my vehicles and am always interested to see where JLR source their parts as this can often help with cost saving. An OEM part doesn't need to be in a Jaguar box to be exactly the same specification. For example the AC Air Particle Filter (P/N C2P2410) can be found for a third of the JLR cost when you know it's MicronAir (P/N 1628).

JLR source several parts from Valeo and I would not be surprised to find the Water Pump is one of these. Anyone had a pump from JLR recently and checked it for manufacturer's identification numbers?

Graham

 

That is what I was getting at but even suppliers change. I'm not too worried about filters, etc as long as they are a good brand, but more fundamental items such as suspension parts, brakes, etc, it is good to know who the original supplier is. Having that info helps make a better decision if you are considering a different supplier.

The Valeo water pump is about the cheapest out there

Btw, I think this was looked into before and the consensus was the the OEM is Airtex part number AW 4124 (https://www.jaguarforums.com/forum/x...-147981/page3/)

 

I've watched JLR's OEM filter manufacturer change across three European countries in recent years. Suspension arms are LEMFÖRDER brand which, as you will know, is part of ZF group. They are certainly an example where big savings can be made by sourcing from a LEMFÖRDER dealer rather than a Jaguar dealer.

Valeo is an interesting one. Major supplier to many vehicle manufacturers and parts are sensibly priced. An exception was the wiper motor for a Bentley Continental GT which cost me 1041 UKP. I couldn't find it anywhere in the Valeo catalogue and had to go to Bentley for it. As dealer price markups go that even leaves Aston Martin looking generous.

This thread is making me think an OEM 'sticky' could be useful to bring all information about OEM alternative sources together.

Graham

 

I prefer OEM, but like GG said, that sometimes is not an option. I just bought camshaft variators, cam variator solenoids/oil valves, cam cover gaskets, spark plug tube seals and a timing cover gasket. No option but Maserati in the expensive blue and white box. At least Scuderia Car Parts was decent on price at $1100. I just rebuilt an electric seat motor for the Maserati since it was expensive at the dealer too. I end up fixing a lot of parts on some cars for the part itself is overpriced.

I looked at Bentley Continental GTs, which I know go through suspension arms given they are a larger car. If I needed suspension bits, I was going to see ID, OD, Width and see if I could find a fit or machine an alternative down on OD to fit. That or reach out to groups like Energy Suspension and see what I could come up with. I don't know if the Bentley shares the same suspension air pump as my D3 Audi A8s did (same era), but it was like $600 for an air pump, or $40 on ebay for a little rebuild kit and very easy to do.

 

I have a CGT (as well as a Maserati GT and XKR) and while you can get many A8 parts you have to be careful and run it by the experts first. The Facebook groups are invaluable. I believe on many suspension arms the arm is the same as A8, but a bushing may be different. Don't know specifically as I've never had to do mine but I've seen others talking about it. I did brakes and while A8 was rear rotors, front was Bentley specific.

I also have a 2011 XJ with the 5.0 SC that seems to be on the OEM water pump at 60k miles. I bought all the parts for it, but now I think I'm waiting and watching for any coolant loss first. No sense in digging around, snapping plastic pipes, and breaking bolts if it's working fine.

 

+1

Disturbing cooling system parts is always a bit or a lottery. If there's no leak and the coolant is circulating efficiently, I'm all for leaving it alone until something definitely needs replacing.

Graham

 

Just a thought for those who have chosen to wait until their OEM 5.0 water pump fails. Given the high failure rate and the possible catastrophic consequences of inadvertently overheating your engine, shouldn’t you reconsider? I accept there are many systems you can run to failure then repair them with no long term consequences, but there are essential system’s that if allowed to fail because of lack preventative maintenance that will have an unpleasant outcome. For example you change your oil before your engine fails, same with poly V belts, antifreeze and brake fluid also have a working ‘life’ and need to periodically changed, along with brake pads, discs, and tyres, because a failure in these systems/items can be expensive, life threatening or both. Along with this go known high failure rate items, and our OEM water pump falls into this category.

Just a thought from from now retired commercial fleet manager.

 

I'm no expert mechanic, but I've done enough digging into engine bays to understand the frustrations of disrupting something that was working just fine to fix something that wasn't.

There is next to no risk of disrupting or breaking anything else with an oil change, brake swap, belt change, etc.

Now if I were taking my 5.0 on a cross country trip, I'd probably reconsider.

 

I might pick reach out to pick your brain if I run into anything on the Maserati that's odd since the forums for that are WAY less active than here . As far as a Bentley, I have tabled that for now since I need to get rid of the X100 before I start looking at anything else lol. Good to know on the Facebook groups; that may finally get me to join their site!

100% agree on the water pump and brittle pipes. The norma-connector having lines on my X100 have broken when you try to disconnect them; so when I did the water pump (which I did while I was doing valley hoses), I did all of them too, just knowing they'd be a PITA.

 

The Maserati Facebook group is kind of a waste of time. Mostly people showing off their wraps. The Maserati forum is smaller but there are a few people who are extremely knowledgeable and answer almost any question. Same with the Bentley FB group, two or three very smart people there that make it worth it. Out of my six cars, x150 has the best forum community though!