Two problems related to water pump have been reported for the 2012 Jaguar XF. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Jaguar XF based on all problems reported for the 2012 XF.
Coolant leak caused by bad plastic parts, especially the crossover pipe which was made as a welded together piece. Luckily, I had a warning that my coolant was low and continued to fill the coolant up till I could bring the car in for service and replacement of the water pump and plastic parts as recommended by other owners.
It started off as a small coolant leak but after spotting coolant on the overflow hose, I noticed a crack in the plastic hose. Replacing that hose didn't stop the problem; coolant kept leaking and I had to buy another bottle. I then brought my car to a mechanic who pressure tested it and said the water pump needs to be replaced. He replaces it for $734, we pressure test it, all seems good. A couple days later I start leaking a large amount of coolant again so I purchase a new bottle of coolant just to get home. That night I research 2012 Jaguar water pump issues and see that this is a very know major design flaw and use of cheap plastic affecting lots of owners. The water pump fails regularly and the plastic crossover pipe just bursts at the seems. I have a family friend purchase and replace this, another $502. After another couple days I smell coolant yet again and notice a small drip. This time it's the water pump bleeder hose. I purchase the new updated part which is now 2 parts instead of one and spend another $419 to replace it. Now this all is happening at the absolute worst time ever. This issue started while my wife was 8+ months pregnant. The uncertainty of when the car would leak or god forbid overheat on the way to the hospital had me very nervous and upset. This was a major safety issue. Now I know the car was out of warranty but after doing a lot of research on this, I feel that the water pump and crossover should have been recalled due to the known flaws and almost certain failure. At the very least I should have been notified as an owner that this happens to the car as I am sure you were aware of all the fixes being done at retailers and by the multiple product upgrades. I found out that other vehicles with different VIN #s were in fact recalled.