Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
Hi I'm Kevin the floats inside the expansion bottle that give the level reading are quite common to fill up with coolant and sink causing the light to come on a new expansion bottle will cure this . The gargling will be down to the coolant having air in system . Was level low?
You need to have system pressure tested for leaks this takes about ten minutes and will show of system is holding pressure and highlight leaks the reservoirs are also very common to crack . But this is the cause of noise is the coolant having been low causing air in system