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Thread: Help! Shall i buy a diagnostic software?

  1. #1
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    Help! Shall i buy a diagnostic software?

    Hi I have an issue with my injectors on a golf 2011 diesel:


    The technical background for the fault is that depending on the driving profile the programmed values for the injection valves in the engine control
    unit can deviate. In unfavourable cases this can cause a slight pre-injection that affects combustion.

    In order to proceed with the 1st stage repair we would need to update the engine control unit software and perform minimal quantity
    adaptation of injectors.

    Can i buy a ross tech and do it myself? VW want to charge a large amount of money for it.

  2. #2
    Verified VCDS User Zenerdiode's Avatar
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    Quote Originally Posted by hasani007 View Post
    Can i buy a ross tech and do it myself?
    Hello and welcome to the forum.

    Not for updating any control module software, I'm afraid. However, for all other diagnostic tasks, VCDS will last you for years to come.

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    Benevolent Dictator Uwe's Avatar
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    Moved to Pre-Sales Support -- the more appropriate of the two sections where users that aren't verified can post.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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    Quote Originally Posted by hasani007 View Post
    Hi I have an issue with my injectors on a golf 2011 diesel:

    The technical background for the fault is that depending on the driving profile the programmed values for the injection valves in the engine control
    unit can deviate. In unfavourable cases this can cause a slight pre-injection that affects combustion.

    In order to proceed with the 1st stage repair we would need to update the engine control unit software and perform minimal quantity
    adaptation of injectors.

    Can i buy a ross tech and do it myself? VW want to charge a large amount of money for it.
    Thanks for your email - we'll answer here in the forum for all to see.

    VCDS can adapt the injectors. See this page: http://wiki.ross-tech.com/wiki/index.php/2.0L_CR_TDI
    While this procedure is for the 2.0L, a similar procedure should exist for the 1.6L. Go to the Official Factory Repair Information (erWin.VW) to view/check for the proper procedure.

    VCDS can show the injection quantity.

    VCDS cannot modify the control program to change beyond the settings designed into the control module by VAG engineers.

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