The owner of this R53 Mini cooper attempted to find the coolant leak on his car after having to repeatedly top-off the coolant and replacing the thermostat and gasket. We’ve identified the leak to be coming from the water pump weep hole.
This W11 engine is equipped with a supercharger where the water pump is mounted onto, a tedious location to get to. We’ve dismantled the front nose of the car to gain access to the water pump.
![MINI Cooper R53 Bumper Removal](/Files/Images/Blog/mini-r53-bumper-removal.jpg)
![W11 Water Pump Location](/Files/Images/Blog/w11-water-pump-location.jpg)
After the water pump is installed, we’ll be flushing out the wrong coolant the customer has been adding with BMW anti-corrosive coolant, formulated to properly protect the engine internals of a MINI Cooper.
![W11 Water Pump Leak](/Files/Images/Blog/w11-water-pump-leak.jpg)
This MINI is fully reassembled and ready to hit the road.
![MINI Cooper S R53](/Files/Images/Blog/mini-cooper-s-r53.jpg)