If the warning light in your Audi lights up out of nowhere, or you see excess smoke coming from the exhaust, then it could be that the EGR valve is at fault. The Exhaust Gas Recirculation valve, or EGR, plays a role in controlling emission by allowing a portion of the exhaust gases to be pumped back into the intake system. This lowers combustion temperatures and the amount of nitrogen oxide (NOx) gases that is emitted from the exhaust pipe. It is beneficial to your Audi as it makes it run clean and in an efficient manner.

If the EGR valve is functioning correctly, you may not even realize that it is present in your Audi. When it begins to clog or fail, though, it significantly affects the performance of the engine. When faced with a failing EGR valve, the best thing to do is to replace it, but before you do, there are other steps you need to follow. Continue reading to learn how to replace a failing EGR, and where to take your Audi if this car part is faulty.

What Causes the EGR Valve to Fail?

The primary reason behind EGR valve failure is carbon buildup. When the exhaust gases are passing through the valve, some soot and carbon accumulate inside the valve. These deposits can gradually accumulate and lead to the blocking of the valve, or cause the valve to jam in either the open or shut position. Routine oil changes, using high-quality gasoline, and taking your Audi for long drives to ensure that the engine reaches optimal temperature can help limit carbon deposits, but the valve can still become worn over time.

Steps To Replacing Audi EGR Valve

  • Check for Diagnostic Trouble Codes (DTCs): The first thing to do in order to address any EGR problem is to get a diagnosis. Fault codes that are stored in the vehicle’s onboard computer are read through a scan tool. These codes help in determining whether the EGR valve is problematic, or if another associated component such as a sensor or a solenoid is faulty.
  • Locate and Remove the Faulty EGR Valve: After the diagnosis has been made, the technician will then proceed to locate the EGR valve. In many Audi engines, the valve is located close to the intake manifold or the exhaust system and sometimes it is partially concealed behind other components of the engine. To remove it, the technician will remove any electrical connectors, vacuum lines or coolant hoses connected to the valve and then remove the bolts holding the valve to the vehicle.
  • Check the EGR Ports: Carbon build up is always a common problem with EGR systems. If the ports or passages leading to and from the EGR valve are blocked, they will have to be cleared. This step ensures that the new valve will work as intended and will not cause any further restrictions to the exhaust flow. In some cases, special equipment and cleaning solvents may be used to clean carbon deposits in the intake manifold or EGR tube.
  • Install New EGR Valve: A new EGR valve, preferably an OEM or a high quality one, is then fitted in place of the old one. The technician also makes sure that the valve has been properly installed and tightened to the right torque value. All hoses, connectors and sensors are then replaced and checked to make sure they are not damaged and are functioning well.

Why More People Turn To Bimmer Performance For Their Audi EGR Repairs

If you are in or around Houston, Audi EGR Valve Repair Sugar Land, Mission Bend, Cinco Ranch, or Katy, TX, and are experiencing EGR problems with your Audi, Bimmer Performance is ready to assist you. Our technicians have been working on European vehicles for years and we understand how to diagnose and repair EGR valve issues correctly.

We use modern equipment and the most effective diagnostic tools to ensure that the work is done right the first time. Whether the problem is with the valve, a sensor, or something else in the engine, we will find it and have your Audi running like it should. Our services come with integrity, quality, and reasonable rates that you can always rely on. If you do not want the EGR issues to escalate into a much more complicated problem, bring your Audi to our workshop. Call us today and fix an appointment for a service that will keep your engine running for a long time.

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