Diesel Particulate Filter DPF For Mitsubishi Outlander MK2 2.2 DI-D 1570B023

A DPF, or Diesel Particulate Filter, is an emissions control device designed to trap and remove particulate matter (PM) or soot from the exhaust gases of a diesel engine. It is commonly used in modern diesel vehicles to meet stringent emissions standards.

How does a DPF work?

1. Trapping Particulate Matter:

   • As exhaust gases flow through the DPF, a honeycomb-like structure made of ceramic or metal fibers captures and traps particulate matter. This includes soot and other fine particles produced during the combustion process.

2. Regeneration Process:

   • Over time, the trapped particles accumulate, leading to a potential decrease in exhaust flow and engine performance. To prevent clogging, the DPF undergoes a process called regeneration.
   • Regeneration can be either passive, active or forced:
     • Passive Regeneration: This occurs naturally during normal driving conditions when exhaust temperatures are high enough to burn off accumulated soot.
     • Active Regeneration: In some situations, the engine control unit (ECU) initiates active regeneration, where additional fuel is injected into the exhaust system to raise temperatures and facilitate the burning of soot.
     • Forced Regeneration: This is a manual process which is instigated via a Technician at a garage. It is carried out using special diagnostic equipment.

3. Ash Accumulation:

   • While regeneration addresses soot, non-combustible ash particles, such as minerals present in engine oil, remain in the filter. Over time, this can lead to the DPF becoming less effective.

What is a DPF made from?

Diesel Particulate Filters (DPFs) are manufactured with either Cordierite or Silicon Carbide cores, both serving as effective materials for trapping particulate matter in exhaust gases. Here's an overview of each:

Cordierite Core:

• Material: Cordierite is a ceramic material.
• Features:
  • It is the 'industry standard' in the aftermarket for DPFs.
  • Offers a durable and cost-effective alternative to original equipment (OE) equivalents.
  • The porous substrate allows exhaust gases to flow through the filter walls while trapping physical soot particles.
  • Requires regeneration at a certain fill level to ensure service life.
  • Commonly used in aftermarket DPFs, covering PLG (Petrol Light Goods) and LCV (Light Commercial Vehicles) up to Euro 6 legislation.

Silicon Carbide Core:

• Material: Silicon Carbide is a ceramic material known for its high thermal capacity.
• Features:
  • Offers higher thermal capacity compared to Cordierite.
  • Withstands temperatures of up to 2700°C, providing greater durability.

Summary Points:

• The DPF is crucial for reducing harmful emissions, particularly particulate matter, in diesel engine exhaust.
• Regeneration processes, whether passive or active, are essential for maintaining DPF efficiency.
• Regular maintenance and adherence to recommended service intervals are crucial for the long-term functionality of the DPF.
• Failure to address DPF issues can result in reduced fuel efficiency, increased emissions, and potential engine damage.

T&Cs relating to Warranty:

• DPF’s are only covered for structural failure.
• A blocked DPF is not a warranty as the problem originates upstream of the DPF.
• When the DPF light illuminates, follow the instructions in the owner's handbook; failure to comply could result in a blocked DPF.
• Active DPF’s that use an additive to assist in regeneration must never be driven without this fluid, as this could result in a blocked DPF.
• It is not advisable to run a DPF vehicle on Bio-Diesel.
• When fitting a new active DPF, the Control Unit must be readapted to the new DPF.
• Regeneration will not take place when the fuel light is on or with less than 20 litres of fuel in the tank.
• DPF’s are excluded from any No Quibble warranty agreements.

1. What is a DPF (Diesel Particulate Filter)?

   • A DPF is an emission control device installed in the exhaust system of diesel vehicles to trap and reduce the emission of particulate matter (soot) from the exhaust gases.

2. How does a DPF work?

   • The DPF captures and stores particulate matter during normal vehicle operation. When a certain level of accumulation is reached, the DPF goes through a process called regeneration, where the trapped particles are burned off, reducing emissions.

3. Why is a DPF important?

   • A DPF is crucial for reducing harmful particulate emissions from diesel engines, contributing to cleaner air and compliance with environmental regulations.

4. What are the signs of a clogged DPF?

   • Signs of a clogged DPF include reduced engine performance, increased fuel consumption, the illumination of the DPF warning light, and the need for more frequent regeneration cycles.

5. How often does a DPF need regeneration?

   • The frequency of DPF regeneration varies based on driving conditions. Generally, it occurs every 300 to 600 miles. However, if driving is mainly short trips or stop-and-go traffic, more frequent regeneration may be needed.

6. Can a DPF be cleaned or regenerated manually?

   • Some vehicles have a manual regeneration option, but it's typically recommended to let the automatic regeneration process occur. Cleaning a DPF may require professional services, and manual regeneration should be performed cautiously.

7. Can I drive with a clogged DPF?

   • It is not recommended to drive with a severely clogged DPF, as it can lead to engine damage and increased emissions. If the DPF warning light is illuminated, it's advisable to address the issue promptly.

8. How long does a DPF last?

   • The lifespan of a DPF varies, but it can typically last between 100,000 to 150,000 miles or more. Regular maintenance, including proper engine oil and fuel quality, can contribute to a longer DPF life.

9. Can a DPF be removed or bypassed?

   • Removing or bypassing a DPF is illegal in many regions due to environmental regulations. Doing so can result in fines, penalties, and increased emissions.

10. How can I prevent DPF issues?

    • Regular maintenance, including using the recommended engine oil, quality fuel, and driving at highway speeds for extended periods, can help prevent DPF issues. Following the manufacturer's guidelines is crucial.