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What's different between a '00 A6 2.7T TCU (4B0 927 156 BD) & '00 S4 2.7T TCU (8D0 927 156 BS)?

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Old 04-16-2007, 06:53 AM
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Default What's different between a '00 A6 2.7T TCU (4B0 927 156 BD) & '00 S4 2.7T TCU (8D0 927 156 BS)?
The first three characters of the part number refer to the model. That I understand. But why does the 2000 A6 2.7T Tip get a tranny computer ending in "BD" while the 2000 S4 2.7T Tip gets one ending in "BS?" Anyone know what's different between the two and if they're interchangeable? TIA!
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Old 04-16-2007, 07:05 AM
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Default Re:
4B0 927 156 BD
8D0 927 156 BS

Different ecu versions. M box, A box, T box, etc.. etc... Probably not interchangeable. But what do I know. Ho.
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Old 04-16-2007, 07:09 AM
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Yeah, but both are for a 2000 2.7T Tip. I wonder why the difference from "BD" to "BS."
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Old 04-16-2007, 07:45 AM
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why dont you ask snow trooper you two are best friends right?
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Old 04-16-2007, 07:52 AM
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I doubt he would know the answer to this one. He's not into tips.
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Old 04-16-2007, 09:37 AM
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The later Tips use DL and DR. IMO. The DR is the best TCU. My 2001.5 has as DL. 2002 = DR
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Old 04-16-2007, 09:57 AM
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didnt think u were
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