What Are the Consequences of Ignoring EGR Valve Issues in Your European Car
The Exhaust Gas Recirculation (EGR) valve is one of the most crucial components in your European vehicle that plays an active role in controlling emissions from your car. In fact, high-end European car brands like Audi, BMW, Mercedes, Volkswagen, Volvo, Porsche, and Jaguar come equipped with an EGR valve to control emissions from their vehicles.
In fact, ignoring issues with the functioning of the EGR valve in your European car can have serious consequences for your vehicle and will make it difficult for you to drive your European car. In this article, we will discuss the consequences of ignoring EGR valve issues in your European car.
Consequences of Ignoring EGR Valve Issues
Drop in Engine Performance
One of the initial signs associated with malfunctioning EGR valves in European cars is a drop in the vehicle’s engine performance. The engine in your vehicle depends on an adequate mixture of fresh air, fuel, and recirculated exhaust gases for optimal combustion.
Now, when the EGR valve fails to regulate the exhaust gases properly, the resulting balance is disrupted, which leads to a drop in the performance of your vehicle. At times, if the valve remains stuck open, then the excessive exhaust gases are going to enter the combustion chamber, and will reduce the oxygen levels required for optimal combustion.
This is when you will notice that the engine in your vehicle feels very sluggish, hesitates during acceleration, and struggles to deliver power while driving. Now, if the valve stays closed, then the combustion temperature in your vehicle is going to increase drastically, and this is going to affect the efficiency of your engine, and lead to a lot of stress on the internal components.
Excessive Carbon Buildup
Most of the time, it is observed that a failing EGR valve in European cars often leads to the accumulation of carbon and soot throughout the intake system. This is where, instead of maintaining controlled exhaust gas recirculation, the failing EGR valve leads to heavy contamination inside the intake manifold, throttle body, intake runners, and intake valves.
In fact, the direct-injection engines that many European cars come equipped with are prone to carbon buildup because the fuel doesn’t get washed over the intake valves. Most of the time, it is observed that a failing EGR valve accelerates this procedure as additional soot starts accumulating in the intake tract.
Over the years, as your vehicle gains miles, the accumulation of soot adversely affects the airflow into the cylinders, which reduces engine efficiency and performance of your car. In fact, the inadequate airflow into the engine forces the turbocharger and intake system to work very hard, and this increases the overall engine stress.
Poor Fuel Efficiency
Generally, European cars are going to provide you with a consistent miles per gallon reading under normal circumstances when there are no underlying issues in the vehicle. In fact, European cars adjust fuel delivery to the engine based on airflow measurements, combustion conditions, and exhaust gas recirculation.
Whenever the EGR valve fails, these readings become inaccurate as a valve stuck open introduces too much exhaust gas into the combustion chamber, leading to incomplete combustion in your vehicle. This is when additional fuel gets pumped into the engine to maintain the power output, leading to a drop in the fuel mileage of your car.
While driving, you will notice that you have to frequently refill your fuel tank despite driving the same distance. This is an indication that the EGR valve needs to be inspected by a professional mechanic immediately.
Consistent Check Engine Light Illumination
All modern European cars come equipped with numerous warning lights located on the dashboard of the vehicle. The check engine light is one such warning light that is related to the engine and emission systems in your vehicle. Whenever there is something wrong with the functioning of these components, the warning light is going to flash on the dashboard.
Now, the failure of the EGR valve is going to lead to the check engine light illuminating continuously on the dashboard of the vehicle. This indicates that the serious problem needs to be addressed by a certified mechanic immediately, otherwise it will adversely affect the engine of your car.
Finally
The above-discussed factors are some of the problems European car owners are going to face when the EGR valve fails in their vehicles. Now, one of the best ways to avoid getting caught in those issues is by sticking to the manufacturer-recommended maintenance schedule of your vehicle, which will help in identifying the problem with the EGR valve early on and fixing it accordingly.











