Your DPF will become blocked when soot builds up in it.
To clear it, the soot needs to burn away, which is called “regeneration”. There are several ways that DPF regeneration can happen:
- Passive regeneration: This happens naturally when the car gets hot enough, during long drives at a high speed.
- Active regeneration: This is a process that your car can initiate in response to a blockage. Your car injects diesel on the exhaust stroke so that it ignites and burns the soot.
- Forced regeneration: Mechanics can carry out a forced regeneration where they burn the soot off for you. This is expensive, and can only be done 4 times before it damages the filter permanently. This is usually done once the filter becomes very blocked and the car goes into limp mode.
- Redex DPF Cleaner: This lowers the temperature that the soot burns at, meaning it can be cleared just with normal driving. If you use it when the warning light comes on and then drive, the light should go off in around 10 minutes. It’s a cheap and convenient way to keep your DPF working efficiently.
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Related Questions
A:
There are different stages of DPF blockages, and they can be treated differently.
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A:
No. If your car has a DPF, you are not allowed to remove it.
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A:
We recommend that you use Redex DPF Cleaner in every second or third tank of fuel, particularly if you drive short journeys or do a lot of stop/start driving in a city.
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A:
Yes, you can use Redex DPF Cleaner to prevent problems as well as cure them.
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A:
DPFs get blocked with soot, and the warning light is your first indication that this has happened.
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