What does the DPF warning light look like?
A flashing orange DPF light (or whatever the primary activation mode is) just tells you that the filter is getting loaded up, and a burn or regeneration is necessary and/or overdue. The car knows this because it measures the pressure drop across the DPF.
What does the DPF light mean on an international truck?
When this light comes on it means that the DPF filter is starting to become full. The DPF needs to heat up to turn the soot into ash. There are two ways to accomplish this: Run on the highway for a long period of time (>60km/hr) or perform a forced parked regeneration.
How do I get the DPF light off?
If you get a warning light showing that the filter’s blocked, it should be possible to complete an active regeneration cycle and clear the warning light by driving for 10 minutes or so at speeds over 40mph.
What is a DPF regeneration indicator?
What Are DPF Regeneration Cycles? An active regen cycle is a normal process that takes place as the truck is going down the road. A computer sensor monitors the DPF and a dashboard indicator light notifies the driver that the regen is taking place, or the DPF is now cleaning.
Can you drive with DPF light on?
Can you ignore the DPF light and carry on driving? Technically yes, but we would not recommend it. If you ignore the DPF light and continue driving, the build-up of soot will soon reach a point whereby your car has to enter ‘limp-home’ mode in order to prevent any damage to the engine.
How long can I drive with DPF light on?
The DPF light coming on is a clear indicator that your car use and driving style needs to be reviewed, and you should avoid using the car for trips like the school run or regular journeys where the car cannot reach and maintain its normal operating temperature for at least 25 minutes.
How do you test a DPF filter?
If everything passes physical inspection, you can test the DPF differential pressure sensor using a multimeter set to 20V and a pressure gauge. With the battery on and engine off, connect the multimeter ground to the negative battery terminal and run a quick plausibility by checking the voltage of the battery.
Does DPF cleaning work?
Some garages can clean blocked DPFs, in a process called forced regeneration. This usually costs around £100 and, while it’s not a 100% guaranteed fix, it’s usually successful in removing the excess soot and allowing the DPF to work and automatically regenerate again.