You’ve probably previously been aware of the famous EGR valve, the anti-pollution valve. It is not generally appreciated by drivers because it is likely to create more concerns than anything else… Indeed, dependant upon the use you are going to make of your car, it can become congested and trigger you a lot of complications. If this is the case, you are probably wanting to know how to clean the EGR valve of your Volkswagen CC ? Don’t stress, we’ve prepared this article to help you with this procedure. To achieve this, we will first look at the role of the EGR valve, then what are the failures that the EGR valve of your Volkswagen CC can reason and finally the part that will probably concern you the most, how to clean the EGR valve Volkswagen CC?
How to Clean your Volkswagen CC EGR Valve: Role and Operation
Role of the EGR valve
The EGR valve of your car has been added to diesel engines principally to reduce pollution emitted by cars and to meet EURO specifications on Volkswagen CC . 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 CC , we will have a look at how it works. As described just before, its objective is to clean the exhaust fumes, so it will be located 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 function mainly at low speed because at high speed the combustion is sufficient to burn all these gases.
How to clean your Volkswagen CC EGR valve: Identifying faults
The EGR valve, even though very effective to limit the pollution emissions of your Volkswagen CC , will regrettably tend to clog up because of soot/gas deposits that will build up in its mechanism, which will finally risk obstructing the functions of the valve, until totally blocking the engine unit, here are the symptoms that a faulty EGR valve on your Volkswagen CC can provoke:
- Motor light on
- Power loss
- Technical assesment refused
- Black gases
- Car that grazes at low speed
- Low RPM settings
How to clean your Volkswagen CC EGR valve: In practice
And now we’ll commence the part you are most serious about, how to clean the EGR valve of your car. Here are the two methods that you can use.
Do it on your own
How to clean your Volkswagen CC EGR valve system: Without taking it apart
Although this technique is less efficient, it is however possible to consider a “rough” cleaning of your EGR valve, in fact, 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 Volkswagen CC.
How to clean your car EGR valve: With disassembly
Here is the most reliable technique, which will require sufficient access to the EGR valve to accomplish the treatment without help. If so, the procedure is fairly straightforward. 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 achieved, now comes the time for cleaning. To make this happen, 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 even 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 CC.
Have it done by a professional
If, your EGR valve is not accessible because of the series or the engine of your car and if removing it would cause too many problems (removing too many parts that hinder access for example), how to clean the EGR valve of your Volkswagen CC? In this case, it would be better rather than launching yourself into an overly complex procedure, you turn to an auto mechanic. He will be able to carry out the job more cleanly and will be able, if necessary, to change the valve if it is dead. The cost of cleaning dependant upon the difficulty of access is between 70 and 300 €.
Remove the EGR valve of your Volkswagen CC
At last, some people make a more radical decision to limit the risk of a failed valve. Instead of cleaning the EGR valve of their Volkswagen CC, they just prefer to block it in the closed position. This manipulation will have the result of greatly increasing the pollution emitted by the car, of no longer complying with pollution standards, of having an engine warning light permanently on and in the end 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 hesitate to take a look at our dedicated page.
If you have any additional questions about the Volkswagen CC, do not hesitate to consult our Volkswagen CC category.
