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TB1211 – DPF pressure testing and cleaning using Tunap

Models: All diesels fitted with a Diesel Particulate Filter (DPF) or Diffuser (DPD). 

Symptoms: DPF fault codes, DPF light illuminating and/or performance issues.

Failure/Issue:​ Inability to clear DPF and related fault codes, inability to perform a passive DPF regeneration, evident of a restricted DPF with high differential pressure readings, soot and ash levels exceed specification. 

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TB1211 - DPF pressure testing and cleaning using Tunap

This procedure refers to: