Firstly I apologise if this has already been discussed but I cannot find one that relates entirely to my issue.

This is my first time ever posting on any forum but after reading many posts, there is many knowledgeable people here that I hope can help me out.

Today, my 2012 XFS diesel (92686 miles) has presumably destroyed itself! I had the B Bank Cam Cover (manifold) replaced literally 150 miles ago and not long before had full major service, disks, pads, tyres, battery etc. Both belts were replaced near 2 years ago, MOT with no advisories and no advisories from the jaguar specialist that conducted the manifold repair except my throttle body housing was a bit broken but had one on back order. They had my car for over a month as I told them to take their time and not to rush thinking they would do a thorough job and if they saw anything that looked suspicious then could replace it. Anyway, as stated by the specialist, I have not driven the car hard at all since the repairs (150 miles so far) nor exceeding 65mph to let everything settle in for the first 500 miles. Well obviously I haven’t even reached halfway before it destroyed itself!

Driving between 40/50mph I had a “water in fuel” sign pop up and then the red “low coolant warning” and “battery not charging” immediately followed. So within 5 mins I pulled over in a fuel garage to open the bonnet which I was engulfed with hot fumes that smelt of hot metal and flashing liquids. No coolant left in the reservoir and after pouring some in, ran straight onto the pavement. There was only a small amount of steam but stopped steaming near instantly. I looked around the engine and saw the cam belt had come of a few pulleys!! Yet it drove without fault! The only difference was I lost power steering at the end but there was no performance issues, no change in tone from engine, no roughness, no knocking, nor change in any of its normal characteristics whilst the warning signs were on and even when I pulled up and parked up it still turned off smoothly without any noice or fuss.

Could the water pump randomly pack up causing the cam belt to jump off some pulleys? It looks like a pulley could have been on its way off anyway but I could be wrong as it’s very hard to see. Or could there be damage to the pulleys/belt that caused it to slip off and then the water pump packed up and hence the alternator then stopped spinning? What about water in the fuel warning?

If anyone can confirm that it is just a common issue with the cooling system or just general issues and is to be expected or not would be very much appreciated!

Im going to have it towed to the specialist that worked
on it but could the fault be with them? I’d like to understand the damage and why but I’m guessing it’s more than likely dead and it’s just bad luck after reading jaguars have poor coolant systems. I was starting to look at upgrading to a XJR! By I really don’t think I could own a jaguar again after spending lots of money on maintenance to now know it’ll end up randomly killing itself anyway.

Again any advice, suggestions, and input is greatly appreciated! Thank you in advance!

 

You're from UK. Try posting this on the UK Jag forum as they never had the diesels in the US.
EDIT:- I think the XF D owners would like to read this.
www.jaguarforum.com

EDIT 2:- I've had a late 59 plate XF S for many years now over many thousands of miles & never encountered or read about a scene as you describe.

 

Milan 1221,
Sounds like the fan belt failed and the resulting high temperature and pressure caused the hose to fail.
If you continued to run/drive after seeing the belt/hose damage, you made matters much worse.
Please post your results here as a warning/information to others.

PS: Problems, coolant system or otherwise, may be expected on any make/model of 12-year-old vehicle.