You’ve probably previously read about the well-known EGR valve, the anti-pollution valve. It is not usually appreciated by drivers because it tends to cause more trouble than anything else… Indeed, determined by the use you are going to make of your car, it can become congested and trigger you a lot of problems. If this is the situation, you are probably concerned about how to clean the EGR valve of your Porsche Cayenne ? Don’t stress, we’ve well prepared this article to help you with this process. To accomplish this, we will initially take a look at the role of the EGR valve, then what are the failures that the EGR valve of your Porsche Cayenne can provoke and finally the section that will probably appeal you the most, how to clean the EGR valve Porsche Cayenne?

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How to Clean your Porsche Cayenne EGR Valve: Role and Operation

Purpose of the EGR valve

The EGR valve of your car has been integrated to diesel engines primarily to reduce pollution released by cars and to match EURO measures on Porsche Cayenne . It will as a result control the quality of exhaust gas output and get rid of toxic particles, mainly Nitrogen Oxide.

Operation of the EGR valve

Before we learn how to clean the EGR valve on your Porsche Cayenne , we will take a look at how it functions. As seen just before, its task is to clean the exhaust fumes, 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 get rid of all unburned toxic particles. It will perform mostly at low speed because at high speed the combustion is sufficient to burn all these gases.

How to clean your Porsche Cayenne EGR valve: Identifying faults

The EGR valve, despite the fact very important to limit the pollution emissions of your Porsche Cayenne , will regrettably tend to clog up because of soot/gas deposits that will build up in its system, which will ultimately risk blocking the functions of the valve, until totally blocking the engine unit, here are the symptoms that a defective EGR valve on your Porsche Cayenne can provoke:

  • Motor light on
  • Performance loss
  • Technical inspection refused
  • Black gases
  • Automobile that grazes at low speed
  • Low RPM settings

How to clean your Porsche Cayenne EGR valve: In practice

And now we’ll begin the section you are most interested in, how to clean the EGR valve of your car. Here are the two techniques that you can use.

Do it on your own

How to clean your Porsche Cayenne EGR valve system: Without taking it apart

Although this approach is less effective, it is however possible to consider a “rough” cleaning of your EGR valve, the reality is, you will only need to use fuel additives, similar to the products used to clean the injection. These particular 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 Porsche Cayenne.

How to clean your car EGR valve: With disassembly

Here is the most reliable approach, which will require sufficient access to the EGR valve to execute the treatment yourself. If so, the operation 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 finished, now comes the time for cleaning. To get this done, 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 canal 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 Porsche Cayenne.

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 parts that hinder access for example), how to clean the EGR valve of your Porsche Cayenne? In this instance, it would be better rather than launching yourself into an overly complex process, you turn to an auto mechanic. He will be able to accomplish the job more cleanly and will be able, if required, to change the valve if it is dead. The cost of cleaning determined by the difficulty of access is between 70 and 300 €.

Remove the EGR valve of your Porsche Cayenne

At last, some individuals make a more radical decision to limit the risk of a failed valve. Instead of cleaning the EGR valve of their Porsche Cayenne, they just prefer to block it in the closed position. This treatment will have the effect of greatly increasing the pollution released by the car, of no longer complying with pollution criteria, of having an engine warning light all day on and ultimately risk fouling the engine. We strongly 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 you have any further questions about the Porsche Cayenne, do not hesitate to consult our Porsche Cayenne category.