Top Signs Your DPF Needs Cleaning

GARY STEVENSON • 25 November 2024

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DPF - Diesel Particulate Filter

If your business owns or operates diesel-powered machinery or vehicles, then you need to stay on top of your maintenance. Ensuring that a diesel engine has a clean Diesel Particulate Filter (DPF) is absolutely crucial to maintaining performance, fuel efficiency, and longevity. Over time, a DPF can become clogged with grime, soot, and particulate. Without regular cleaning, a clogged DPF can cause significant damage to a diesel engine.       

As specialists in all things to do with radiators, Applied Radiators have put together this quick guide to help you identify when your DPF needs cleaning


Warning Light on the Dashboard

If your DPF warning light comes on, it’s a clear sign that the filter is clogged and needs attention. This is an early warning system designed to prevent further damage and should never be ignored.


Reduced Engine Performance

A blocked DPF can significantly reduce engine performance, leading to slower acceleration and reduced power. If you notice a lag in performance, it’s worth checking whether your DPF is the culprit.


Increased Fuel Consumption

A dirty DPF restricts the exhaust flow, causing your vehicle to use more fuel. If you’re refuelling more frequently than usual, a clogged DPF could be the reason.


Unusual Exhaust Smoke

Excessive smoke or a change in exhaust colour, such as turning grey or blue, can indicate DPF problems.


Frequent Regeneration Cycles

If your DPF is regenerating more often than usual, it may be struggling with a blockage and will need cleaning.


Strange Noises or Unusual Smells

Odd noises or a burning smell from the exhaust are red flags for DPF issues that should be investigated immediately.


The Importance of Regular DPF Maintenance

Regular DPF cleaning ensures your vehicle runs efficiently, remains compliant with emissions standards, and avoids costly repairs. Contact Applied Radiators Ltd today to schedule a DPF maintenance service! 


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