Recently i have noticed a coolant leak on my engine (its a TD5 in a Defender 90) its on the left hand side towards the front of the engine just below the manifold. does anyone have any idea if this is serious and where it could be leaking from?

I have an issue with my interior light on my 1999 Defender TD5 it will turn on using the switch on the light but will not turn on when any of the doors are opend have checked; - the wireing and there is no shorts and breaks - have checked the door sensors and they all work - have tried...