My car is Skoda Rapid 1.6 litre petrol engine, 2013 model. It has ran about 140000 Kilometres.
Recently Smoke started coming out of my coolant reservoir and it was leaking not from the cap but from the mid of the coolant reservoir container.
So when we replaced it with a new coolant cap and new coolant reservoir container. Then we revved the engine just to check if radiator Fan is working properly.
Before the fan could have started the coolant reservoir cap blown up and coolant liquid came out like a fountain.
Seems like when coolant reservoir cap is removed then coolant circulation looks fine but when cap closed lots of pressure building inside coolant reservoir.
My old coolant reservoir was also replaced just an year ago, even it should have not broken so quickly.
What could be going wrong.