The DPF will not regenerate if:
■ Engine management light is on for any fault.
■ Faulty EGR valve.
■ If there is less than 20 litres of fuel in the fuel tank or if the fuel light is on then regeneration will not take place.
■ If you drive with your foot on the clutch pedal.
■ In order to carry out a static DPF regeneration use the correct diagnostic machine. Ensure the vehicle is in park/neutral, and the hand brake is on. The bonnet must be closed, and the foot pedals should not touched, as the diagnostic machine will keep the engine at 1,500 RPM until the operation is complete.
■ This operation could take up to 40 minutes