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      02-05-2019, 06:00 AM   #1
dftautoservice
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Drives: z4 35is n54
Join Date: Feb 2019
Location: Istanbul - Turkey

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35is DCT with M4 3.46 DIFF

Hello

We change our original 2.56 diff to 3.46 M4 differential. Intallation process a little bit hard but we solved it eventully.

However now we have some errors and don't know how to fix it.

DCT ERRORS: 5A74, 5A75
ECM ERRORS: 2FE7
ABS ERRORS: 5E4C
IC ERRORS: A559

And when test the car shift was a mess rev cluster like goes up and down after that the transmisson error shows up.

When i looked to the forums there were plenty subjects about difficulties diff swap with dct but there is no solition.

Now we will decided to go with this diff or we swap it to original.

Waiting your suggestions

Thank you for your help
Appreciate 0