The coolant tank/expansion reservoir for my 2003 Discovery II arrived yesterday.

I checked the posts in the forum and couldn't find one that showed how to replace the tank. The closest one I could find was how Rover_Hokie showed removed the tank from its brackets and hanged the tank using bungie cords.

My question is how do you replace it? Do you simply detach the two hoses, try to spill as little as possible of the coolant from the old tank, re-attach the hoses to the new tank, and refill the coolant? Do I need to worry about trapping air inside the coolant system? If yes, how do I "burp" the coolant system?

While I'm servicing this component, is there anything I should be doing?

Thanks a million!

Al
'03 D2 SE7

 

I would use something like this to get all the coolant you can out. Then simply remove the two hoses, and reattach to the new coolant tank. After putting the coolant tank on, just do a proper bleed of the system to make sure there is no air in the system. Also, be sure to get a new expansion tank cap that will vent properly.

 

The tank itself is a no brainer. Its the plastic return hose and everything else in there that is going to break as soon as you fiddle with it. Just block off some time so that you are not in a hurry. OR as the Camel Trophy video states " go as slow as you can, but as fast as you have to" and get it done. Have fun!

 

The procedure for bleeding the coolant can be found in pages 26-2-13 and 26-2-14 of the Rave workshop manual for Discovery II.

Thank you to everyone

 

take out old tank put in new tank. If you break some hoses you can use rubber high pressure ones and a few clamps. Next to replacing the TStat its one of the simplest.