Unimog Club UK

I don't like these coolant flushes that you can get there a bit aggressive on gaskets change the thermostat for a genuine one, Westfield 4x4 have got them at a good price at the moment while you've got the stat out flush from the stat housing back to bottom radiator hose, then flush radiator backwards. Use a good antifreeze with an anti corrosion additive and you'll be ok. Bloody good Unimog the 140 good power to weight long legged and tough.
Moose