Hi there, completely new to this, however after any direction or advice would be wonderful :)

I have a 2.0tdci Ghia x, 53 plate. If i drive faster than 30mph the car pulls back as if there is no power in it, happens quite severly in either 4th gear to 6th, going up hill where you need the power it disapears and pulls too.

I have no warning lights coming on, and i seem to be losing water? where from i dont know because there is no leakage under the car, however im filling up the water bit at least once every one to two weeks?

Is it time to get rid??