LIQUI MOLY 1L Pro-Line Diesel Particulate Filter CleanerCleaning is made with the compressed air gun for DPF (part no. 7946) and the specially developed DPF Probe with 5 interchangeable tips (part no. 7945) or the DPF spray Probe long (part no. 20630). The diesel particle filter must be accessed depending on the vehicle type. In order to do this, the temperature or pressure sensor on the diesel particle filter must be removed on most vehicles. Observe: When cleaning, the particle filter's temperature