DieselpartikelfilterDieselpartikelfilter

A clean solutionAudi diesel paticulate filter

Audi, as the trailblazer in TDITDISynonymous with muscular torque delivery and outstanding efficiency: TDI. Today, TDI engines are sporty, smooth and economical.TDI technology, has proven diesel competence. The Audi diesel particulate filters are long-term tested and maintenance-free. Open systems reduce particle emission by up to 70%, closed systems even up to 100%.

Diesel particulate filter (closed, regulated system)

Features
Audi Genuine diesel particulate filters (closed, regulated system) are tailored to the special features of an Audi TDI, depending on model year and model.

A precious metal coating of the diesel particulate filter works in two ways: firstly, with passive regeneration, the soot stored in the catalyst is converted slowly and carefully into carbon dioxide. This process occurs in a temperature range of 350 to 500 degrees centigrade and runs continuously, predominantly on motorway journeys, without any special measures being required. Secondly, during long periods of operation at low loads, the exhaust gas temperature is increased to around 600 degrees centigrade approximately every 1,000 kilometres, for the purpose of additional filter regeneration. At this temperature, the particulates stored in the filter will burn almost completely.

Advantages

  • Environmentally friendly: Up to 100% soot avoidance
  • No problem in the event of temporary urban vehicular traffic bans
  • Same as production solution
  • Durability tested
  • Are maintenance-free

Availability
A closed (regulated) retrofit system is available for Audi TDI models from model year 2004 with preliminary fittings for a particulate filter.

The Audi Genuine diesel particulate filter (closed, regulated system) is available for the following models:

  • A3 (AB2)
  • A4 (B7)
  • A6 (C6)
  • A8 (D3)

Diesel particulate filter (open, unregulated system)

Features
Audi Genuine diesel particulate filters (open, unregulated system) are tailored to the special features of an Audi TDI, depending on model year and model. Product quality tests have shown that these Audi Genuine diesel particulate filters guarantee excellent particulate reduction in an Audi TDI.

Here, the Audi diesel particulate filter is installed immediately behind the existing oxidation catalyst. The exhaust gases flow firstly into the catalyst, before entering the diesel particulate filter where they are cleaned of most of their soot particles. The nitrogen dioxide (NO2) that was formed with the aid of the oxidation catalyst ensures, in a further chemical cleaning stage, that the soot particles deposited in the diesel particulate filter are oxidised and broken down.

Advantages
Up to 70 % less particle emissions
No work on the engine management system required, no preparation required.
Durability tested

Note
For technical reasons, it is not possible to retrofit an open system to a vehicle with quattro permanent all-wheel drive.

Availability
An open (unregulated) retrofit system is available for Audi TDI models from model year 1996.

The Audi Genuine diesel particulate filter (open, unregulated system) is available for the following models:

  • A3
  • A4 (B5, B6, B7)
  • A6
  • A8 (D2)