How to Tell if Your MINI Needs a PCV Replacement The invention of the Positive Crankcase Ventilation (PCV) in a MINI has made all the difference in ensuring that the engine runs smoothly. The PCV has a valve that regulates the flow of blow-by gases from the crankcase back into the intake manifold for proper combustion. A PCV failure is, however, common to MINI vehicles and once this happens, it leads to a reduction in engine performance and puts the engine at risk of damage. To save your vehicle, you may need to get a PCV replacement. In this guide, we have listed a few signs to tell you when your MINI needs a change. Common Causes of a PCV Failure in a MINI Before we proceed to how you can tell if your MINI’s PCV is damaged. Let’s discuss the two mai ... read more