The EGR valve is a very important element in the exhaust gas treatment system, allowing better management of excess nitrogen oxide and fine particles. This valve acts as a flap to burn these gases.

However, the EGR valve may become clogged or clogged, which can have an effect on your intake system and your pollution.

The characteristics that allow a problem to be diagnosed with the EGR valve are the loss of power, black smoke or engine that burns, which can be indicated by the engine indicator light.

It is a part that must be in perfect working order to pass your roadworthiness test.