Diesel Particulate Filter (DPF)            4-Stage Cleaning Service

bmw-dpf-fault     audi-dpf

It is important to understand why the DPF has blocked or failed, which fault codes are present and what effect these have on the DPF.

A thorough investigation must take place to ensure any other potential problems are removed:

  • Short journeys & style of driving incompatible to automatic DPF regeneration
  • Poor fuel quality
  • Poorly operating or blocked injectors
  • Faulty EGR valve (Exhaust Gas Recirculation)
  • Incorrect engine oil
  • Service intervals exceeded
  • Split or damaged hoses
  • Fault codes showing on the diagnostic equipment linked to DPF/Exhaust:
  • Inject chemicals into system and clean DPF
  • EGR system service
  • Engine oil flush and replace oil/filter
  • Carry out extensive road test and monitor DPF values and print test results