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Diesel Particle Filter Emergency Regeneration

Time:2018-01-12 04:57Turbochargers information Click:

diesel Filter Particle Emergen

Diesel Particle Filter Emergency Regeneration

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Contents

1.4l/1.9l/2.0l R4 & 2.5l R5 PD/PPD-TDI

Prerequisites (General):

  • Ignition ON
  • Engine ON (Idle)
  • Coolant Temperature above 50 °C (see MVB 002.4)
  • Particle Filter Load below Specification (see MVB 075.3, VCDS should give the specified value)
  • If the Particle Filter Load is above Specification the Particle Filter needs to be replaced since the car may burn down when regenerating.
  • Power Consumers ON (Light, Seat Heating, Front/Rear Window Heater, Climate Control)
  • Conditions (Driving Cycle):

  • Vehicle Speed between 30-60 km/h (18-37 MPH)
  • Engine Speed between 1500-2500 RPM (4th or 5th Gear, Automatic Transmission in Tiptronic)
  • Duration approx. 15-20 Minutes
  • Exhaust Gas Temperature before Turbo Charger above 700 °C
  • Drive the car based on the above conditions until the Particle Filter Load is as low as possible (close to 0 %). In case the regeneration fails there can either be problems with the Driving Cycle Conditions or with the Engine Hardware.

    [Select]
    [01 - Engine]

    [Coding-II - 11]

  • Enable Regeneration by Entering 21295.
  • [Do It!]

    [Meas. Blocks - 08]
    Select both Groups at once 070 and 075.
    [Go!]
    MVB 070.1: Regeneration Status (xxxxxxx1 = Normal Regeneration active, xxxxxx1x = Forced Regeneration active)
    MVB 070.3: Regeneration Counter/Timer
    MVB 075.1: Exhaust Gas Temperature before Turbo Charger
    MVB 075.2: Exhaust Gas Temperature before Particle Filter
    MVB 075.3: Particle Filter Load
    MVB 075.4: Exhaust Gas Temperature after Particle Filter

    Now Start the Driving Cycle and keep watching the Measuring Blocks (2nd Person required).

    [Done, Go Back]
    [Close Controller, Go Back - 06]

    1.6l/2.0l R4 CR-TDI (CAN)

    With the newer CR-TDI engines there are 2 different types of regenerations available depending on the actual soot mass/load. If either the calculated or measured soot mass is above 30g but below 40g you can initiate a regeneration while standing (Idle will be raised etc.), a forced regeneration while driving is also possible. Once the values are above 40g (but below the max 45g) the regeneration while standing is no longer available and the regeneration while driving is the only way.

    Regeneration while Standing/Idle

    Prerequisites (General):

  • Ignition ON
  • Engine ON (Idle)
  • Fuel Tank at least 1/4 full
  • Transmission in Neutral/Park
  • Parking Brake engaged
  • Coolant Temperature above 70 °C (see MVB 002.4)
  • Particle Filter Load below Specification (see MVB 108.2/3 -or- 241.2/3 VCDS should give the specified values)
  • If the Particle Filter Load is above Specification the Particle Filter needs to be replaced since the car may burn down when regenerating.
  • Power Consumers ON (Light, Seat Heating, Front/Rear Window Heater, Climate Control)
  • Engine Hood Closed
  • [Select]
    [01 - Engine]

    [Security Access - 16]

  • Enter the Code shown by VCDS next to Adaptation Enabling (e.g. Regeneration while Standing)
  • [Do It!]

    [Basic Settings - 04]

  • Select Block for Regeneration while Standing
  • [Go!]
    [On/Off/Next] if Basic Settings isn't automatically ON at the top of the screen.

  • Follow the Instructions on the Screen. This process may take up to 30 minutes.
  • [Done, Go Back]

    Check the following groups after the regen. The Particle Filter Load should be as low as possible (close to 0 %)
    [Meas. Blocks - 08]
    Select Blocks 099 and 108 at once.
    [Go!]

    MVB 099.2: Exhaust Gas Temperature before Turbo Charger
    MVB 099.3: Exhaust Gas Temperature before Particle Filter
    MVB 099.4: Exhaust Gas Temperature after Particle Filter

    MVB 108.2: Particle Filter Soot Mass (calculated) Alternate group 241.2 if 108 is blank
    MVB 108.3: Particle Filter Soot Mass (measured) Alternate group 241.3 if 108 is blank


    [Done, Go Back]
    [Close Controller, Go Back - 06]

    Regeneration while Driving

    Prerequisites (General):

  • Ignition ON
  • Engine ON (Idle)
  • Coolant Temperature above 70 °C (see MVB 002.4)
  • Particle Filter Load below Specification (see MVB 108.2/3, VCDS should give the specified values)
  • If the Particle Filter Load is above Specification the Particle Filter needs to be replaced since the car may burn down when regenerating.
  • If the Particle Filter Load value in MVB 108 is blank, use alternate group 241.2/3 instead.
  • Power Consumers ON (Light, Seat Heating, Front/Rear Window Heater, Climate Control)
  • Engine Hood Closed
  • Conditions (Driving Cycle):

  • Vehicle Speed above 60 km/h (40 MPH)
  • Engine Speed between 2000-2500 RPM (4th or 5th Gear, Automatic Transmission in Tiptronic)
  • Duration approx. 10-15 Minutes
  • Exhaust Gas Temperature before Turbo Charger above 170 °C (MVB 099.2)
  • Exhaust Gas Temperature before Diesel Particle Filter above 150 °C (MVB 099.3)
  • Exhaust Gas Temperature after Diesel Particle Filter above 150 °C (MVB 099.4)
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