Hello all,

I wanted to document a setup found on my '15 XFR-S (and perhaps some other cars, see below). I have seen this mentioned online and also in some articles about the R-S or certain hot climate cars, having "better cooling" but nothing too definitive, so my goal was to use this thread as a discussion/documentation. If you know anything about what cars got this, please share! This might be a viable OEM upgrade for those of looking to keep things cool. Tore down my R-S this week to do the water pump and replace some other things, and was surprised to see an aux rad on both sides, each tied into the main radiator's plumbing via 3-way Tee connectors.

I drained each rad after removal and measured approx 900ml of coolant from both. So, conservatively, adding a second Aux rad to the R-S or any single car, would add about 400-450ml of capacity to the system. The hoses are much longer too, so more volume there. @12.3L of total capacty for a 5.0Ls/c AJ133, that's roughly 5% volume increase. (someone check my math) by adding the extra unit.



XFR-S Driver/LH Side:





XFR-S Passenger/RH Side:





XFR-S Setup Removed:


Part Diagram from JagLR Classic that matches my setup (but is described as 5,0 nat asp)




Part #'s and Links:
Each side has a radiator, outer shroud, inner shroud, and a vented wheel liner. Both sides use the same inlet and outlet hoses, that tee into the aux ports on each side of the main radiator. I pulled the part numbers from each part off my car, and have attempted to cross reference them to the US catalog(linked). Note, the shrouds have stickers and labels on them that denotes "RS". I traced the part numbers using JaguarLandRoverClassic.com

Rads & Ducts (note the "middle east" distinction in the descriptions)
Hoses
Wheel Liners


Part# on Part --> Jag Part # --> Part Name / Description
* - Not 100% sure if correct part #*

DX2M-8C474-A --> C2Z9417 * --> Aux Radiator Shroud / Outer Scoop, RH
DX2M-8C465-A --> C2Z9416 * --> Aux Radiator Shroud / Outer Scoop, LH
DX2M-8A107-AA --> C2Z20246 --> Aux Rad Shroud / Inner Shroud RH/LH

9X23-8D049-AD --> C2D23154 --> Aux Rad Inter-Cooler / RH Aux Rad
9X23-8D048-AE --> C2D23155 --> Aux Rad Inter-Cooler / LH Aux Rad

9X23-8D050-ED --> C2Z5541 * --> Aux Rad Inlet Hose / Supply for both rads, uses RH main radiator port, Under Upper Rad Hose. #7 In diagram above
9X23-8D059-A? --> C2Z5540 * --> Aux Rad Outlet Hose / Return for both rads, uses LH main radiator port, under Lower Rad Hose. #8 in diagram above

CX23-166562-AB --> C2Z22403 --> Wheel well liner, vented / RH Side
CX23-166563-AB --> C2Z22404 --> Wheel well liner, vented / LH Side


XFR Setup:
Now - The 2010 XFR JagDocs PDF shows most cars having the Passenger/RH side Aux Rad. Nothing new here! See below, #14 is the rad, and 12&13 are it's respective inlet & outlet hoses.



I ordered the following, but they did NOT fit my R-S, I believe what you see below, is #12 & #13 for the XFR (single Aux Rad cars)



C2Z6373 --> Outlet Hose / RH Side, single Aux Rad Car. Goes to LH side main radiator port. (#13 in diagram)
C2Z6374 --> Inlet Hose / RH Side, single Aux Rad Car. Goes to RH side main radiator port (#12 in diagram)


Hopefully this rewards any curious minds out there, but also serves as a good resource for anyone down the road.

-Thanks,
Devin

 

Reserved for updates /part # corrections if any

 

Great thread and I have also tried to add this second AUX radiator to my XJR. I will be following this closely and thanks for all your work so far!

I did find the drivers side (Left Side) duct as C2D9658.
But pictures seem to indicate this number is only for a part of the ducts?




.
.
.

 

Kevin / @clubairth1 - that part # looks like just the "inner" duct, the one that mounts to the rad itself, and then my guess is there is a second one that mounts to that and conforms to the backside of the bumper. Also, the part# you are using is for an XJ it looks like, not an XF so it may not match the ones I have listed above for an XF

So I called my local jag dealer today, and told them what I was looking for (inlet and outlet hoses for a dual aux rad car) and they gave me the C2Z6373/C2Z6374 numbers, which are pictured in bags above. these are NOT the correct hoses for the dual setup but its what is in the system for my VIN for some reason. I gave him the part #'s for 5540 and 5541 and these showed as a "module" in his system, not a hose. Also provided him the raw 9X23-8D050 numbers from the hoses themselves and they returned back the values of 6373/6374. So clearly the aux rad hoses aren't easy to find.. I am going to try another dealer's parts department Monday.

In the image above, I have the hoses oriented 180* the wrong way (sorry!) I will edit and change this later. Here is how they hoses mount to the radiator on the engine bay side. (shown without a fan)







The rads tie into the main radiator, NOT the supercharger intercooler. These are extensions of the engine radiator. While the two systems do share fluid from a small hose that bridges both the intercooler and the radiator, these are tied into the main rad just like the single Aux rad cars do, but the hoses have 3 ports, one for each rad inlet/outlet, and one for tapping into the main radiator.

 

Weirdly, my 2010 XF Supercharged (bought from Texas) had the dual radiators fitted, apparently from the factory. Maybe it was ordered with them because Texas heat?

 

I think your part number might be good for that hose 9X23-8D050? But I find different hoses depending on the ending two letter suffix.

Here is 9X23-8D050-BC hose. Listed as fitting a 3.0L Diesel.



But here is another one that looks much different and it's listed as the BC version also? I think the small hose matches the above picture and this really consists of multiple hoses that the seller listed under one part number? You can see the BC part of the part number in the picture on the small hose that feeds into the "T" fitting.
9X23-8D050-BC




Here is 9X23-8D050-GA hose again from a 2.2L Diesel.



I also find a 9X23-8D050-CB hose listed for the 5.0L V-8 but no picture?

Have you seen this thread from the UK. Has a nice diagram of the dual AUX radiator setup BUT it's a diesel. Not much extra info either?
Dual AUX Radiators

Here is an 2010 XF with the drivers side AUX radiator as Dave noted.




I also find the compete radiator Assy. listed as AW93-8A107-AE.
This is the passenger side assy. for the XJ.
.
.
.

 

@DeviLSh

Good write-up! Send over your VIN in a PM and I'll retrieve the part numbers that you are unsure about.

 

Hope this helps...

CX23-8C464-AB --> C2Z13160 --> Aux Radiator Shroud / Outer Scoop, RH
CX23-8C465-AB --> C2Z14242 --> Aux Radiator Shroud / Outer Scoop, LH

9X23-8D050-EB --> C2Z25540 --> Aux Rad Outlet Hose (#9)
9X23-8D059-EB --> C2Z25541 --> Aux Rad Inlet Hose (#10)

#7 & #8 would be the usual region inlet and outlet parts. #9 & #10 are the Gulf spec. Let me know if you need anything else.

 

Don't we also need #6 and #5 part numbers too if we are adding the LH side AUX radiator?
Not sure looking at the diagram but I think we need another "T" in the hose?.

Great input and thank you for the effort!
.
.
.

 

#6 & #5 are for the heater/reservoir circuit. The three way you see is for where it meets with the tstat assembly. The other hose is from reservoir drain the where 5&6 meet.

the diagram he referenced isn’t 100% accurate to the dual setup. Only one hose looks correct, the other is missing from the image. look at the Jaguar classic link I posted, that is more accurate of a diagram. Mojo’s part #’s look to be correct for the hoses those (540/541 suffix) I will order the pair to confirm and report back here!

Going to be cleaning and combing the rads on my car this week. Then I’ll take final pics of everything to better document this.

 

FYI, these are the actual diagrams Jaguar use in-house. This is the same system that they use when you call them up and order parts. Sometimes they just use some replacement images. Looks like they've just copied the image from #11 (oil cooler hose) as #9. Part numbers will be accurate

 

Waiting for Devil to confirm once he has them in hand but I believe the parts you would need to add this DRIVER side aux radiator to a US spec XFR would be:
1) Vented fender liner - C2Z22404
2) Aux radiator - C2D23155
3) Rad shroud - C2Z20246
4) Bumper shroud - C2Z14242
5) Hose OUT - C2Z25540
6) Hose IN - C2Z25541

~$775 in parts

 

Some excellent diagrams here:

Genuine Auxiliary Radiator And Ducting For Jaguar Xf 2009 - 2015 | Jaguar Land Rover Classic Parts
Genuine Radiator Hoses-v8-5.0 Litre-supercharged (5.0 Litre Supercharged) For Jaguar Xf 2009 - 2015 | Jaguar Land Rover Classic Parts

Devil, I'm curious if you have that blanking plate (Item 6 on the first link) on your vehicle?

 

Thanks for the added info! We are getting closer everyday too!

But I don't think we will need the vented fender liner as it appears on the drivers side on all X351 XJ's including mine. I have an XJ so maybe different from the XF but looking at wrecked XF's on the internet they also seem to come with both fender liners vented?

Here is the XJ drivers side fender liner.




Here is the passenger side fender liner for the X351 XJ.




This would make sense because you would eliminate part numbers and carrying multiple parts when the vented version would work on any car regardless if it came equipped with the AUX radiators or not.

Maybe some of the XF guys can look at their cars to confirm?

From your link fitment is based on the car having or not having the JaguarSport Interior Pack. I don't know what that is and have never heard of it so maybe an XF thing only?

Any chance you could post the XJ diagrams? I have looked but must be searching for the wrong things? EDIT-I found them see below!

Also your link did clear up what the stray flat looking panel was in the diagrams I found. It's the drivers side blanking plate which is installed if the car does NOT have the drivers side AUX radiator.




It's item number 6.
Note too there is no passenger side blanking plate as apparently all cars came with the passenger side AUX radiator.

Found the XJ diagrams for the AUX radiators FINALLY!
XJ AUX Cooling Parts

And the hoses.
XJ Cooling Hoses

Interesting in that they now mention middle east in some of the hose descriptions.
Now I need to figure out what hoses I need from that diagram!
.
.
.

 

^confirmed. My XFR already had the vented liner. I've ordered all parts and should have them in hand in 2-3 weeks.

 

DeviLSh here is what I think are the correct parts list for adding the drivers side AUX radiator?
You need 2 hoses, the radiator and duct assembly.



Also looks like all the parts are the same for the XF and the XJ and probably for the F-Type too.
.
.
.

 

My 2013 5.0 Supercharged was first purchased in Texas and also has the additional rads. You may be onto something there Dave.

 

Yeah the JagLR classic diagrams are superior, I have them linked above in my first post. And your part# list looks correct, my hoses were delayed 1 day, so I should have them tomorrow and can confirm they are the correct ones.

My XFR-S has no blanking plate, both fender liners are vented.

Loving everyone's contributions to this topic, thanks all!

 

I agree one would need the rad, the duct(s), and 2 hoses. Also you'll need a few bolts to secure it to the sheet metal.

Your hose part#'s are different than what millertime and I have linked above. Not sure if that is an XJ specific number or not.

 

DeviLSh I think the duct is sold in 2 parts?
Anyway you could post what the part numbers are cast into the scoops I have circled in red?




Right now I am finding them listed as RH (Passenger Side) C2Z13160 and LH (Drivers Side) C2Z20246.
Problem is on some Jaguar parts sites they say these do NOT fit my XJ so maybe some additional differences after all?
.
.
.