The electronic indicator lights, the vehicle has no more power and an extremely high fuel consumption? The diesel particulate filter has only a limited capacity to store particulates. From a certain amount of soot, the soot particles must be burned in a regeneration process to CO2 and ashes. Different reasons can mean the regeneration process does not start and in consequence the DPF gets clogged with soot particles.

Possible causes:

  • Defective or not fully functioning injectors
  • Sooty or coked EGR valve
  • Different qualities of fuel or Biofuels
  • Short distance driving profile


TUNAP is the first manufacturer to have developed a patented particulate filter cleaning system with which clogged particulate filters can be cleaned in an installed condition, rapidly, simply and significantly more economically than replacing them.

  • Used when regeneration is no longer possible
  • Cleaning to almost new condition possible
  • No expensive new installation
  • Cleaning without disassembly of the particulate filter
  • Non-flammable
  • Neutral ash and metal-free formulation
  • Evaporates completely
  • Compatible with other materials

An overloaded DPF: That is expensive.

For replacement of the part customers have to pay a lot of money. For a new diesel particulate filter between £600 and £4000 would be charged. In addition a prolonged stay in the workshop and a rental car has to be organised.
TUNAP Solution: Cleaning instead of replacing

  • Optimal customer service
  • DPF functional again in the shortest possible time
  • DPF cleaning without expensive new installation
  • Technical approvals from leading car manufacturers
  • Huge cost savings
  • Preventive measure to keep your customers permanently mobile
  • Already more than 100,000 times successfully applied

If you simply want to go ahead and have the service carried out or ask a few questions then please get in touch.


Removes most deposits from your engine, reducing your emissions, for a cleaner greener drive.


Upto 14% improvement in MPG.


Removal of carbon deposits significantly improves overall vehicle performance with improved drivability.