Regeneration of particle filter


In certain driving conditions, the particle filter can not be cleaned automatically, e.g., in continuous city driving. Then this function can be used to force a regeneration of the particle filter. The function cleans the filter from soot particles by increasing the exhaust temperature and thus burn off soot particles. Increase of the exhaust temperature takes place automatically during the regeneration procedure.

Note:

Regeneration in progress can be cancelled by:

Test conditions:

Procedure:

  1. Start the function.

  2. The following instructions are shown and shall be followed to start regeneration:

    • Press down clutch + brake pedal.

    • Let up clutch + brake pedal.

    • Press down accelerator pedal all the way.

    • Let up accelerator pedal.

  3. At active regeneration the engine speed increases to approx. 1,500 rpm and the glow filament in the instrument starts to flash.

    • If regeneration does not start, turn off the car and check test conditions.

  4. When regeneration is done, the engine speed returns automatically to normal idle and status changes to "test finished".

  5. The function is done.

    • If the function fails, check the test conditions and repair any faults.