How To Clean A Blocked Dpf Filter

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Diesel particulate filters (DPF) are installed in many postal service-2007 vehicle exhausts to reduce emissions past eliminating soot and ash. Even so, soot and ash do build upward in the filter over time. Often this can exist removed using active regeneration or cleaning additives, but sometimes professional cleaning by a mechanic is necessary.

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Picket for the DPF symbol, which indicates that it needs cleaning. Check the dash panel for a small, yellow or orange rectangular warning symbol with circles in the center. This symbol shows that the DPF soot has built up to a possibly damaging level. Ever clean the DPF immediately when yous meet the warning symbol.^[1]
- The warning symbol likewise shows that passive regeneration didn't work. This process automatically burns off carbon soot particles. However, it only happens when the exhaust temperature is very warm for a long time. Passive regeneration is unlikely if you make frequent, brusk trips rather than long drives.
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Drive over twoscore mph (64 kph) to begin agile regeneration. Notice a long, flat stretch of road or a highway where needing to slow downward or stop is unlikely. Brainstorm driving and pay attention to both the engine and vehicle speed. Try to keep the engine speed around 2500 rpm.^[two]
- Active regeneration increases the temperature in the DPF to turn the particles into gas which tin be expelled.^[3]
- These speeds are full general guidelines. Check your vehicle handbook to find the best practice for your vehicle.
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Bulldoze for approximately 15 minutes until the warning symbol disappears. Proceed driving at a constant rate. The warning symbol goes out when active regeneration is done.^[4]
- Active regeneration typically takes 5 - 25 minutes, depending on the make and model of your vehicle.
- Active regeneration needs fuel to work, so make sure that you have at least 5.iii US gal (xx Fifty) of fuel in the tank. This is around 1/4 full.^[v]
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ane
Purchase a DPF cleaning additive to aid clear the ash and soot. This bottle of fluid is designed to pause down the ash and soot that's clogging the filter. Visit your local motor supply store or await online to purchase a cleaning additive. These products unremarkably cost from $13 (USD) to $26 (USD).^[6]
- DPF cleaning additives comprise fuel borne catalysts. These feel a combustion process to eliminate the soot and ash.^[vii]
- Use the cleaning additive every 3 - half dozen months to maintain the DPF. Check the vehicle handbook to see how oft you should use an additive for your detail vehicle.
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Pour the cleaning additive directly into the fuel tank. Read the label on the bottle of the cleaning additive and follow the manufacturer's directions carefully. Turn off your vehicle, open the fuel tank and insert the nozzle of the cleaning additive. Pour the required corporeality of the product into the tank and then replace the fuel cap and door.^[8]
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Drive your vehicle for 15 - thirty minutes to go the additive running. Begin driving your vehicle as you normally would. The cleaning condiment starts working regardless of the engine and vehicle speed. If the DPF warning light was on before you lot used the condiment, the symbol should disappear later your drive.^[ix]
- Have your machine to a mechanic to go the DPF professionally cleaned if the alert lite doesn't go away.
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Have your vehicle to a mechanic if the DPF warning symbol remains. Cheque if the DPF warning symbol disappeared after trying active regeneration or a cleaning additive. If the symbol remains or if a warning lamp symbol lights up, the DPF must be professionally cleaned. Drive immediately to a mechanic before any damage is acquired.^[10]
- The mechanic will make clean the DPF using forced regeneration. This can be an expensive procedure, however, it's cheaper than replacing the DPF.^[11]
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Use branded, high-quality fuel to assist keep the DPF make clean. Always use branded fuel, as information technology contains additives designed to keep your vehicle running smoothly. Avoid unbranded fuel, every bit it may be lower quality, which can damage the DPF.^[12]
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Keep the DPF in your vehicle at all times to avert fines. Although it may seem easier or cheaper to merely accept the DPF out of your vehicle rather than getting it cleaned, this tin can cause more than problems. Driving without a DPF is illegal in many locations and a vehicle without one won't pass inspections. ^[13]
- The only time that a DPF tin exist removed is for repair work by a qualified mechanic. Never attempt to remove the DPF to repair it yourself, as this requires all-encompassing, expert noesis and equipment.
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Never attempt to remove a DPF and to get-go forced regeneration. This should only be washed past a qualified mechanic, as it's easy to accidentally impairment your vehicle.^[xiv]

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