2013 Range Rover TDV8 DPF Cleaning Service for a local main dealer. Using our SDD diagnostic system (main dealer diagnostic) we carried out a full diagnostic health check to identify the cause of the DPF blockage. We carried out a guided test function to test the MAP, EGR, VGT and MAF, the idle and 3000 rpm test found an issue with the EGR system and a suspect boost leak on Bank 1. This information was relayed back to the customer for further investigation. The key to successful DPF cleaning is to identify the route cause of the blockage.