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      08-03-2022, 02:26 PM   #23
Chicane_S54
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Drives: F15 X5
Join Date: Oct 2019
Location: USA

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Quote:
Originally Posted by crystalworks View Post
How are there no pictures/specs of everything posted yet? Any hardware, wheels, tires, etc could be influencing this.

We went from 19's to 20's (with used tires) and required no TC calibration. That is until the rears wore down for about 6 months and then we started getting a "tug" or "thud" as you describe. The TC wants <1% difference in rolling diameter from front to back. New tires installed and no more problems from the TC.

As a matter of good maintenance however you could service your TC fluid (we did later) and reset the calibrations using a Foxwell NT530 or ISTA. The fluid that came out @ 85000 miles was not burnt, but it wasn't great either.
I'm not saying that you are not 100% correct because I think you are but there aren't 1000 miles on these tires with no appreciable wear or wear spots on the tires. Right now I need the TC calibration steps with ISTA. I would rather change the TC fluid and calibrate the TC before I drop $1300 for new tires.
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