The Main Heater Hose runs along the back of the engine bay. The Heater Hose consists of 5 different hoses: from engine on passengers side, from reservoir, from engine under throttle body, and two on water valve.

Warning Coolant will remain in Heater Hose, so expect a mess.

Part Number-MNC6733AC
https://www.dropbox.com/s/y73dyzrvkb...0Octopus.jpg?m

Special Thanks to dsnyder586 and jimlombardi

-Start by jacking up the car and securing it with jack stands.

-Drain Coolant

-Remove the intake pipe, this consists of removing 2-8mm bolts, the breather hose, and clamp by the airbox.


-Remove the plastic center cover by behind the throttle body


-After the Coolant has fully drained, start to remove the Coolant reservoir

-Remove the 3 hoses that connect to the top of the reservoir, be patient with these, so you dont break one.

-Remove 2-10mm bolts that secure the reservoir

-Remove the Electric connector

-Remove the hose on the bottom of the reservoir, this is held on by a hose clamp.


-Remove the hose that connects to the water valve


-Remove the hose on the back of the water valve


-Remove the hose that connects to the engine under the throttle body, this is held on by two clips on either side of the hose, pry the clips apart to release the hose.



-Remove Hose on the passenger side above the down pipe, press down on the top of connector, and slide it back towards the hose, then give it a good pull.


-Pullout Heater Hose from passenger side

-Clean surface of the steel water pipe from the engine on the passengers side

-Feed Heater Hose in through the Drivers Side

-Installation is in reverse order of removal

 

Dani
Nice Photos and instructions. Well done.

The following with illustrations is meant as supplementary information. (on the JPEG files - when the dropbox webpage opens, click on the image to get a better view).

Removal of Intake Air Pipe - This is a PDF file that has instructions/illustrations to Remove the Air Pipe section starting from the top of the Throttle body to the top cover of the Air Box (Air Cleaner).

https://www.dropbox.com/s/3f6qwc2ut7...pe%20R%26I.pdf

Plastic Center Cover (Engine Center Bulkhead) Removal - JPEG file that has a listing of the Bulkhead parts with illustration.

https://www.dropbox.com/s/9jqch1wflw...lustration.jpg

Side note: Dani - looks like in photos - the Bulkhead Cover Fastener parts are missing that hold down the Center Bulkhead Cover.
Part# KRH100005 - Fastener
Part# KRF100006 - Stud retainer

Coolant Reservoir (Expansion Tank) Removal - PDF file with instructions/illustrations.

https://www.dropbox.com/s/71ovnenhg2...20%20R%26I.pdf

No need to do step 11 - removal of Coolant Sensor (unless you need to replace it).

Here is also a JPEG file of the Coolant Reservoir/hoses parts:

https://www.dropbox.com/s/wcjdseyepq...%20numbers.jpg

Jim Lombardi

 

thanks Jim for the part numbers, one small thing to fix out of many to get this jag in the condition i want

 

Nice pics, installation quite different then removal.

New hose is a single unit $280.00 @ jaguar.

Was leaking over the exhaust, cut up hands good did it all from top, didn't drain or jack. Someone quoted 900 to 1100 for the job, I understand completely.

I recommend buying the $5.00 3 way T, broke mine trying to get the hose off it.

 

Octopus 5 way hose is part# mnc6733ae.
Hampton Automotive on EBAY has it listed for $175.95 free shipping listing says for XJR, but it is the same part number for XJ8.

Weblink to Ebay listing:

Heater Hose Jaguar MNC6733AE 1999 2002 XJ 4 0 Super Charged | eBay

Jim Lombardi

 

wow, could have saved a 100. Forgot to check ebay.

 

Safi, I am following your directions but I am having a real problem with "


Remove Hose on the passenger side above the down pipe, press down on the top of connector, and slide it back towards the hose, then give it a good pull


I just cannot get the coupling undone, how does this work?????

 

Any further advice/steps for doing this on an '00 XJR (with the supercharger in the way)? Coolant is dripping out from my Norma connector and I need to get this leak sorted first - either full octopus replacement OR something, somehow, to re-do that connection. (I have a valve gasket cover, rear diff, and transmission leaks all to address as well - sigh.)

 

Consider removing the S/C and getting to the hoses underneath as well- it would be pretty frustrating to go through all this work and THEN find out you have to do the valley hoses (like $15-$25 each)

 

Side note: BIG thanks to you all for this thread! And a special one for the link to the octopus on eBay -- found an active auction, still there for the same price, and got the part in hand in only 2 days.

 

I got kind of fed up with trying to free the Norma connector as well. Mine already appeared to have a small crack, so I just grabbed a small flathead and REALLY cracked it. ...It came off shortly thereafter. I supposed I was replacing the octopus anyways so I might as well not go too far with trying to keep the old hose intact and pretty whilst attempting to get that connection (and others) free.

 

great documentation. Thanks

 

Yes sir, this is an older posting but still quite useful!
I love that we have such a wealth of experience to consult.
These beautiful cars are so sophisticated, we definitely need these
wonderful experiences and guides.

 

Amen!!

 

What’s the secret to remove the 3 hoses from reservoir? The air intake one came off with water pump pliers, but these are stubborn.

is there a tool that I need?

thanks so much for this post!