I have a 2011 XJL 5.0 Supercharged.

I am having a slow leak it seams from the rear of the engine. I assume it is the rear coolant crossover pipe.

I can’t really tell as everything is still all put together.

however, I was wondering is this job doable without removing the supercharger, if I remove the wiper cowls??

I REALLY don’t want to go through the hassle of removing the blower.....

if not possible, has anyone done a write up with pictures?

(yes I’ve used the search engine, but haven’t found anything that answers my question specifically)

Thanks, Charles

 

It can be done but its a super pain in the ***. The instruction tell you to pull bulkhead panels which include cowl and wipers. I've done it before and i dread doing them every time.

 

Does anyone have a picture of what it looks like? I've heard many reports about issues with it, but don't know exactly where it is or what it looks like.

Is it as hard to reach on the V6? I think there's a bit more room back there.

 

Being that everything is pretty much plastic, I fear all of those stupid l little plastic clips and everything breaking on me. Not to mention how heavy the blower is.

with my luck if fix the coolant leak then be chasing a vacuum leak right after lol

 

On the AJ133, it's best to remove the supercharger, wipers and cowl to reach the heater pipe.

On the AJ126, the pipe can be accessed with the supercharger in situ; removing the wipers and cowl allows more work space.

 

Removing the Supercharger is DEFINITELY overkill and I wouldn’t recommend it if you are a skilled with proper tools.

I got the old one out WITHOUT removing the supercharger in about an hour and 30 min. That includes removing the wiper arms, the cowls, and whatever that plastic heat shield is in front of the firewall.

I got the new on in, that took about an additional hour Max. Put everything together.

this job can definitely be done without removing the blower

 

I am thinking about inspecting mine for leaks, I have an endoscope with screen, so should be able to do that without removing anything.

 

I am happy to have fixed mine. I missed driving it so much!

 

Thanks much Chuck77083 as that is great news!

Any more tips? It sure looks like a beast of a job and I have the part but was waiting until I got a leak since I had thought the SC must come off.
So I also ordered the SC gaskets which are not cheap especially the big top cover one. I will remove the SC sometime anyway as I have the snout coupler clunk and it will need to replaced.

Like your Al. intake tube too.
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You dont have to replace S/C gasket if not damaged. It is reusable and have done it before. Just be careful when removing charge air coolers and you wont have an issue.

 

Removing the wipers and cowl is easy. 2 13mm bolts and a wiper puller.

 

Good to know about the gasket as all the instructions I have read they did replace it.
The JTIS also has you replace the gaskets too.
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Chuck, how did you remove the plastic bulkheads?

 

I just did it on my 5.0 NA XF. Even Harry Houdini would have cursed the Jaguar engineers for this one. I can't imagine doing it without removing the supercharger, but perhaps the XJ has more room. The other things to consider are 1) if the rear crossover is leaking, then the front tube is on its last legs too - same material, same deterioration and 2) these direct injection engines build up a lot of gunk on the intake valves and by removing the intake or supercharger, you have the perfect opportunity to clean them. So not only does removing the intake/supercharger make access a little easier, but also you get a chance to do more preventative maintenance at the same time and you won't have to do all of that same work over again later for the next leak. You will likely wind up with a few broken clips, but that's kind of par for the course when working on any older car. Plastic parts under the hood just get baked crispy. But I was pleasantly surprised that the ones I broke weren't ridiculously expensive.

 

Do yourself a favour and remove the supercharger and replace every plastic coolant pipe and hose that the removed supercharger exposes. Also remove the drive snout on the front of the supercharger and service the coupler. Clean the inlet ports and valves, fit the latest water pump and you have covered pretty much all the issues these engines have

 

I would love to have more info on that intake piping if possible.

 

That's the Mina Gallery intake pipe

 

With the supercharger of you can clean the back of the inlet valves and cylinder head intake ports of the deposits that accumulate on direct injected engines. You just turn over the engine to position the valves closed on the ports you want to clean. It’s time consuming but the engine will run way better.

This pic is of an overheated engine with blown head gaskets but you get the idea of cleaning

 

thank you!

 

my water pump and front crossover was replaced already. Which is why I didn’t want to go through the hassle of removing the blower and doing that all over again.