2003 Discovery HSE water gargaling noise
 

i have a 2003 Land rover Discovery and i have a little problem with it, as i drive the vehicle it makes this weird water gargaling noise under the dashboard does anybody know what this is and how can i get it fix..

low on coolant or there is air in the system. Bleed the cooling system, and while at it you might look for leaks.

X2 That is really the only cause for what most of us call the waterfall noise in the dash.