What Happens When Your BMW EGR Valve Fails- Here's How You Can Fix It

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What Happens When Your

BMW EGR Valve Fails? Here's How You Can Fix It


You may find it surprising, but a bad EGR valve can cause complete engine failure.


To prevent that from happening, familiarize yourself with the signs of a faulty EGR.


Below is a discussion of some of the common causes and signs of EGR valve failure.



The sole purpose of an EGR valve is to prevent the formation of oxides of nitrogen (NOx) within the combustion chamber.


To make it happen, the EGR valve diverts exhaust gas to the intake manifold.


Now that we know the working of an EGR valve, let’s discuss what would happen if your BMW EGR valve goes bad.




Even though you will be able to drive your BMW with a bad EGR valve, your engine will struggle to perform efficiently.


To keep your BMW engine healthy, you have to ensure the upkeep of its EGR valve.



One thing you will observe in the event of EGR valve failure is a bad gas mileage.


To fix the issue, you need to replace the defective EGR valve in your BMW.



Another common finding in a car with a faulty EGR valve is CEL illumination.


That’s why, if you are seeing CEL on your dash, have an engine specialist take a look at your engine.



There are several reasons why your EGR valve may stop working.


Some of them are listed below… • Normal wear and tear • Carbon soot build-up • Failing EGR temperature sensor • Faulty differential pressure feedback sensor • Damaged control circuit



EGR valve failure can give rise to multiple engine problems.


That’s why, if you ever encounter any of these signs, call your mechanic right away.


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