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Is there a difference between these two TCMs?

Discussion in 'A6/S6/Allroad forum (C5 Chassis)' started by Bad Sir Culation, Mar 12, 2013.

  1. Bad Sir Culation

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    Part numbers are the same but the letters are different at the end. What does this signify?

    Numbers are:
    4B0927156CH
    4B0927156L

    The car in question is a C5 A6 4.2Q

    Cheers in advance!
     
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  3. Bad Sir Culation

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    Helllooooooo??
     
  4. TYphoon GB

    TYphoon GB Active Member

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    Coding refers to software load for each box type/engine setup.

    Think yours should be 5 speed Auto?

    4B0927156ED ASG FUL
    4B0927156ET ANK FBD
     
  5. Bad Sir Culation

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    Yeah it's a 5 Speed Tip. The part currently fitted is the one ending CH. I've now seen various others, but all with different letters on the end. I'm trying to figure out if only the CH TCM will work or if there's another option.
     
  6. TYphoon GB

    TYphoon GB Active Member

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    What year?

    This may be one for the Audi Dealer parts listing.....

    EDIT Found it...... 4B0927156L doesn't show up in any of the A6's or Audi list I have.....

    [h=1]4B0927156CH found in ...[/h][TABLE="width: 800"]
    [TR]
    [TD]Audi A6/S6/Avant quattro [/TD]
    [TD]1998 , 4B2, 4B4, 4B5, 4B6 [/TD]
    [TD]AUTOMATIC GEARBOX CONTROL UNIT [/TD]
    [TD]4.2ltr. [/TD]
    [TD]5-speed automatic [/TD]
    [/TR]
    [TR]
    [TD]Audi A6/S6/Avant quattro [/TD]
    [TD]1999 , 4B2, 4B4, 4B5, 4B6 [/TD]
    [TD]AUTOMATIC GEARBOX CONTROL UNIT [/TD]
    [TD]4.2ltr. [/TD]
    [TD]5-speed automatic [/TD]
    [/TR]
    [TR]
    [TD]Audi A6/S6/Avant quattro [/TD]
    [TD]2000 , 4B2, 4B4, 4B5, 4B6 [/TD]
    [TD]AUTOMATIC GEARBOX CONTROL UNIT [/TD]
    [TD]4.2ltr. [/TD]
    [TD]5-speed automatic [/TD]
    [/TR]
    [TR]
    [TD]Audi A6/S6/Avant quattro [/TD]
    [TD]2001 , 4B2, 4B4, 4B5, 4B6 [/TD]
    [TD]AUTOMATIC GEARBOX CONTROL UNIT [/TD]
    [TD]4.2ltr. [/TD]
    [TD]5-speed automatic [/TD]
    [/TR]
    [/TABLE]
     
    #5 TYphoon GB, Mar 16, 2013
    Last edited: Mar 16, 2013
  7. Bad Sir Culation

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    Is there any way of knowing if any others work, or am I stuck looking for one with the CH on the end? Year is 2000 btw.
     

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