As seen on Carscoops, a MINI owner in Germany has poured washer fluid into her engine when the car prompted her that it is running low on washer fluid. No reason were given on why she poured it into the engine instead of the opening for the washer fluid.
After five litres of the fluid went into the engine, she realised that lots of blue smoke came out from her exhaust and she took the car to the workshop. As soon as the mechanics open up the engine, they were presented by a thick, foamy sludge covered the engine. It was the same underneath as much of the block and engine sump were covered in the same thick goo.
Nothing was said on how the issue was sorted out but it is very likely that the engine has been damaged beyond repair.