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Work carried out on a Volkswagen vans EGR valve

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29Oct
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Posted on October 29, 2025 / by admin / 0 comment

We recently under went work on a Volkswagen van. The vehicle was experiencing all kinds of problems from rough idling, heavy fuel consumption and engine knocking sounds. There could be many reasons why the vehicle is experiencing these problems, but on inspection we could see the there was a problem with the EGR valve. Here is the Volkswagen vehicle undergoing inspections at our garage.

We have since found the problem with the EGR valve rectified it and the vehicle is now back with the owner.

What is an EGR valve?

An EGR valve stands for Exhaust Gas Recirculation. It is an important component of the vehicle that regulates harmful emission from the engine. When the engine is running it can produce the gas nitrogen oxide which is a gas not good for the atmosphere. The EGR valves job is to circulate this emission back into the engines combustion chamber to burn up nitrogen oxide. This then reduces the amount of hazardous gas that’s get released into the climate.

What are the symptoms you have an EGR fault?

If you are experiencing engine problems, then the EGR valve might have become faulty. Here are a few symptoms that can indicate you have an EGR fault.

1) A simple sign is the engine management light will come up on the dashboard.
2) Your vehicle will be losing power under acceleration and you will be losing speed.
3) You will hear large bangs and tapping noises.
4) A failed emissions test.
5) You will be able to smell fuel that has not been burnt. It will be like smelling fuel at the petrol station.

Contact us

If you think you are experiencing a problem with your vehicles EGR valve get in touch. We can run a vehicle diagnostic and test whether the EGR valve is faulty. We can either fix the existing EGR valve or replace the faulty EGR valve with a new one. Our mechanics have years of experience and will be able to pin point the exact fault and get your vehicle back out on the road in no time.
Use the contact form below or details to get in touch we are happy to help.

A1-Diagnostics and ECU Repairs
 64 Sloper Road
Leckwith,
Cardiff
CF11 8AB

Tel: (029 20) 220380
Fax: (029 20) 223172

Opening Times

Mon – Fri: 8:00am – 6:00pm

Email: info@a1-diagnostics.com