2011 03 adblue systems overview.pdf

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    ATU Audi Technical Updates

    AdBlue Systems Overview

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    2 Audi ATU 03/2011

    Contents: AdBlue Systems Overview

    General

    No. Event Topic Type/model

    1 11/2010 AdBlue systems Q7/B8/Q5

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    3 Audi ATU 03/2011

    AdBlue systems

    Q7 system overview

    B8 system overview

    Q5 system overview

    Display strategy for AdBlue system malfunctions

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    4 Audi ATU 03/2011

    Q7 system overview

    Passive tank for reducing agent

    15.5 litresAct ive tank for redu cing ag ent

    7.5 litres

    Transfer pump f or

    reducing agent

    V436

    Control unit for

    reducing agent

    metering system

    J880

    Engine control unit

    J623

    Pump for reducing agent with:

    - Pressure sensor for reducing agent

    metering system*

    - Heating for reducing agent pump

    Injector

    for reducing agent

    N474

    DeNOx catalytic converter

    5 bar

    Swirl pot, incl.

    -Fill level sensor

    -Temperature sender

    -Reducing agent filter

    *Always check ETKA the pressure sensor will be available separately on some pumps

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    5 Audi ATU 03/2011

    B8 system overview

    Passive tank for reducing agent

    Act ive tank for reducing agent

    Control unit for

    reducing agent

    metering system

    Pump for reducing agent with:

    - Pressure sensor for reducing agent

    metering system

    - Heating for reducing agent pump

    Swirl pot, incl.

    -Fill level sensor

    -Temperature sender

    -Reducing agent filter

    Transfer pump

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    6 Audi ATU 03/2011

    Q5 system overview, first generation

    Control unit for

    reducing agent

    metering system

    Pump for reducing agent with:

    - Pressure sensor for reducing agent

    metering system

    - Heating for reducing agent pump

    Swirl pot, incl.-Fill level sensor

    -Temperature sender

    -Reducing agent filter

    Reducing agent tank

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    8 Audi ATU 03/2011

    Thank you.