hi
I have a 2001 ML320 W163
it has a very minor leak in the radiator
I was wanting to fix it with some stop-leak as I've had success with this in the past
I've only just bought the car and am not very familiar with it
it looks like when the coolant is running you fill it via the overflow tank
firstly, is this correct?
and secondly, in as far as the stop-leak is concerned, it needs to circulate through the coolant system quite well in order to be effective
Does the coolant sitting in the overflow tank circulate through the engine and radiator?
or does it only find its way into the engine and radiator when the coolant there is low?
if its the latter, then adding stop-leak to the overflow tank will not work
any ideas?