With a Freelander the most likely fault is a blown head gasket. When they go, they often take the engine with them.
I am afraid that your best best is to take the car to an Independent Land Rover specialist. They will be cheaper than an 'official' dealer. There won't be a fault that they haven't seen before with the 1.8 K series engine. (It's a pile of ****.)
T
March 2009