Parts for your 2018 Mitsubishi Asx-Egr valve

The EGR Valve on the 2018 Mitsubishi ASX: What You Need to Know

The 2018 Mitsubishi ASX is a popular compact SUV known for its reliability, practicality and efficient performance. When it comes to emissions control and engine management, one component often discussed in petrol and diesel vehicles is the EGR valve, or Exhaust Gas Recirculation valve. So, is the EGR valve relevant to the 2018 Mitsubishi ASX? The answer depends on which engine variant you're talking about.

For the 2018 Mitsubishi ASX, fitted with a petrol engine, an EGR valve is generally not part of the engine design. Petrol engines in this model typically use other methods to manage emissions, such as advanced fuel injection systems and catalytic converters, rather than an EGR system. On the other hand, diesel versions of the ASX may well have an EGR valve fitted since exhaust gas recirculation is a common method to reduce nitrogen oxide (NOx) emissions in diesel engines.

Why would the petrol 2018 Mitsubishi ASX not use an EGR valve? It mainly comes down to the differences in how petrol and diesel engines operate and how they handle emissions:

• Petrol engines burn a leaner air-fuel mixture and have lower combustion temperatures compared to diesels, which naturally generates less NOx, the harmful gases EGR valves are designed to reduce.
• Modern petrol engines use other technologies like variable valve timing and direct fuel injection which already help keep emissions in check without the need for EGR.
• Adding an EGR valve can complicate the engine bay, increase maintenance needs and sometimes reduce fuel efficiency, so manufacturers avoid it when it's not essential.

So for owners of the petrol 2018 Mitsubishi ASX, you likely won't find an EGR valve under the bonnet. However, if your ASX is one of the diesel variants, then yes, the EGR valve is a crucial component. Here's a more detailed look at the EGR valve and why maintenance and replacement advice for it is important for diesel ASX owners.

The EGR valve's purpose is pretty straightforward but clever. It recirculates a portion of the exhaust gases back into the engine's intake system. By doing this, it lowers combustion temperatures which reduces the production of NOx emissions, a major contributor to smog and pollution. These gases are harmful for the environment and can also impact human health. So the EGR valve helps the vehicle meet tough emission regulations and keeps the engine running cleaner.

Over time, EGR valves can become clogged with carbon deposits because exhaust gases contain soot and other particulates. This buildup can cause the valve to stick open or closed, leading to a range of engine problems including rough idling, loss of power, increased emissions, and higher fuel consumption. In some cases, a dirty or malfunctioning EGR valve can also cause the check engine light to come on.

Replacing or servicing the EGR valve on the diesel 2018 Mitsubishi ASX is an important part of regular maintenance. It is recommended to get the EGR system checked during servicing intervals, particularly after the car has clocked significant mileage or if you notice performance issues. Regular maintenance ensures optimal engine operation, compliance with emissions standards, and helps avoid costly repairs down the track.

Here are some tips and advice for maintaining or replacing the EGR valve on a diesel 2018 Mitsubishi ASX:

• Have the EGR valve inspected at least every 60,000 kilometres or as per Mitsubishi's official service schedules.
• If symptoms like rough idle, poor acceleration, increased fuel consumption or check engine light arise, consider having the EGR valve checked promptly.
• Carbon deposits can sometimes be cleaned off using specialised cleaning sprays or ultrasonic cleaning tools, but persistent problems usually mean replacement is the best option.
• Replacement EGR valves should be genuine or high-quality aftermarket parts to ensure proper fit and function.
• When replacing the EGR valve, mechanics typically clean associated pipes and passages to prevent re-clogging and ensure smooth gas flow.
• Modern diagnostic tools can help identify EGR valve issues quickly by reading fault codes and monitoring valve operation during a service.

In terms of cost, replacing an EGR valve on a diesel Mitsubishi ASX is an investment worth making to maintain engine efficiency and reduce environmental impact. Neglecting the valve can lead to more serious engine damage that may be far more expensive in the long run.

For diehard Mitsubishi ASX owners driving the petrol variants, the EGR valve probably isn't on their list of maintenance concerns. But for those with the diesel model, staying on top of the EGR valve's condition makes a lot of sense. It helps keep the vehicle running smoothly, meeting emissions requirements, and ultimately being kinder to the environment.

So whether it's routine servicing or a specific check-up, understanding the role of the EGR valve can help 2018 Mitsubishi ASX owners make better decisions when it comes to maintenance. And that ensures this reliable and efficient SUV continues to deliver a great driving experience for years to come.