You’ve most likely already heard about the well-known EGR valve, the anti-pollution valve. It is not always appreciated by drivers because it is likely to cause more problems than anything else… In actual fact, dependent on the use you are going to make of your automobile, it can become blocked and trigger you a lot of concerns. If this is the situation, you are most likely wondering how to clean the EGR valve of your Volkswagen Jetta ? Don’t stress, we’ve written this article content to help you with this task. To accomplish this, we will first check out the purpose of the EGR valve, then what are the failures that the EGR valve of your Volkswagen Jetta can bring about and to finish the part that will most likely concern you the most, how to clean the EGR valve Volkswagen Jetta?


How to Clean your Volkswagen Jetta EGR Valve: Role and Operation

Purpose of the EGR valve

The EGR valve of your car has been added to diesel engines primarily to lower pollution released by cars and to meet EURO standards on Volkswagen Jetta . It will as a consequence influence the quality of exhaust gas output and eliminate toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we learn how to clean the EGR valve on your Volkswagen Jetta , we will examine how it functions. As seen before, its goal is to clean the exhaust gases, so it will be placed at the engine outlet, thanks to a valve, it will be able to return the unburned exhaust gases to the engine for a second burn which will eliminate all unburned toxic particles. It will run mostly at low speed because at high speed the combustion is enough to burn all these gases.

How to clean your Volkswagen Jetta EGR valve: Identifying faults

The EGR valve, despite the fact very useful to limit the pollution emissions of your Volkswagen Jetta , will unfortunately tend to clog up because of soot/gas deposits that will build up in its system, which will ultimately risk obstructing the functions of the valve, until completely blocking the engine, here are the signs of illness that a defective EGR valve on your Volkswagen Jetta can bring about:

  • Motor light on
  • Performance loss
  • Technical assesment rejected
  • Black fumes
  • Vehicle that grazes at low speed
  • Low RPM settings

How to clean your Volkswagen Jetta EGR valve: In practice

And now we’ll start the part you are most excited about, how to clean the EGR valve of your car. Here are the two solutions that you can use.

Do it on your own

How to clean your Volkswagen Jetta EGR valve system: Without dismantle

Despite the fact this procedure is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, in reality, you will only need to use fuel additives, similar to the products used to clean the injection. These specific products must be injected into the running engine, at the right operating temperature, diluted in about 20 litres of fuel and run the engine for 3 or 4 minutes in high rev to clean the EGR valve of your Volkswagen Jetta.

How to clean your car EGR valve: With disassembly

Here is the most effective procedure, which will require enough access to the EGR valve to perform the operation on your own. If so, the procedure is fairly easy. You will need to disconnect the electromagnet from the EGR valve, remove the few screws that hold it in place, and remove it. Once these guidelines are accomplished, now comes the time for cleaning. To accomplish this, you will need to use a product such as solvent, petrol, oven cleaning product, which you will leave to act for ten minutes, then scrape off the rest using a scraper, finish cleaning with wire brush. If you want to go further, you can also clean the two conduits on which it is connected which may be scorched, for this, use a scraper and a vacuum cleaner to avoid dropping deposits in the conduits. You will only have to reassemble it and you will have finished cleaning the EGR valve of your Volkswagen Jetta.

Have it done by a professional

If, your EGR valve is not reachable because of the series or the engine of your car and if removing it would cause too many difficulties (removing too many elements that hinder access for example), how to clean the EGR valve of your Volkswagen Jetta? In this case, it would be better rather than launching yourself into an overly complex task, you turn to an auto mechanic. He will be able to carry out the job more cleanly and will be able, if required, to change the valve if it is dead. The cost of cleaning dependent on the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Volkswagen Jetta

At last, some individuals make a more radical decision to limit the risk of a failed valve. Rather than cleaning the EGR valve of their Volkswagen Jetta, they just choose to block it in the closed position. This manipulation will have the effect of greatly increasing the pollution released by the automobile, of no longer complying with pollution criteria, of having an engine warning light all day on and finally risk fouling the engine. We highly suggest against making this choice. If you have other questions or want to learn more about your car, don’t be reluctant to take a look at our dedicated page.

If perhaps you have any additional questions about the Volkswagen Jetta, do not hesitate to consult our Volkswagen Jetta category.