Hi y'all.
Does anyone have good photos of where and how the trans cooler is mounted on 5.0 XK/XKR?
I'm talking about this thing:


Any help appreciated.

 

From the X150 4.2 Workshop Manual:

The transmission cooler is integrated into the left hand end tank of the engine cooling radiator. The transmission fluid is cooled by the temperature differential between the transmission fluid and the engine coolant.

The fluid cooler is an aluminium cooler comprising louvred fins and plates. The plates allow a cross-flow of transmission fluid through the cooler. The fins are immersed in engine coolant on the 'cold' side of the radiator which provides cooling of the transmission fluid via heat transfer.

This fluid cooler design provides an advantage over an air-cooled cooler in that the fluid cooling is controlled with engine coolant temperature. Fluid temperature control is also improved when the vehicle is moving slowly or is stationary with the engine running. Fluid is supplied from the transmission fluid pump into the lower connection of the cooler. After passing through the cooler, the fluid passes out of the upper connection and is returned to transmission fluid pan.

You could have posted the only photo we're every likely to see of this elusive cooler.

Graham

 

Your profile shows 4.2 but your question asks 5.0 ......

The 5.0 is different. This section from the Workshop Manual should help with location:




The Workshop Manual is available for download in the 'stickies' at the top of the threads.

https://www.jaguarforums.com/forum/x...guides-215509/

Graham

 

For the 5.0 litre it’s right under the front of the engine.

 

Good eye!
My rad blew to bits and I'm sick of 4.2 parts constantly being on backorder and/or ridiculously expensive. Therefore, I'm going for a 5.0 cooler retrofit. Hence the need for pictures, as my car is different.

 

So, right where the engine oil cooler is on the 4.2. Thanks!

 

JLR used the Covid pandemic as an excuse for disappearing inventory but it now appears to be policy to use it as an excuse not to re-stock many items. With their move to all-electric, this situation can only get worse for the fossil fuel models.

Good luck with the retrofit.

Graham

 

Bought the 5.0 engine radiator today for 200€ and tranny heat exchanger for 30€. Both brand new.

If it works, I'll be super happy.

 

Disassembly started.
Finding a spot for the new cooler and routing the coolant tubes will be a massive challenge.

 

Finished the retrofit. Although, it works and during spirited test drives, the temps stayed rock solid, I DO NOT recommend this to anyone.

As a temprary solution, it's fine.
​But will revert back to stock as soon as possible.

 

How did you go with this , is there any reason you just didn't go with a external finned style trans cooler as opposed to retrofitting the 5l Trans cooler

 

With 10 feet of tubing, I'm afraid. Split lower rad hose and fitted a tee there. 5.0 rad already has an outlet on top. Quick and temporary fix. Ran out of time, because I was in a hurry to get the car to winter storage.

Did not want to go full air cooling, still don't.

Next spring, maybe I'll try to tidy things up.

 

I absolutely love my Jag but despise, even hate the engineers! There is NOTHING simple about these cars. Best of luck to you...