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· Premium Member
Z3's 3.0L and 2.8L
2,641 Posts
Discussion Starter · #1 · (Edited)

The M52TU MDK throttle body is a troublesome device. Testing the resistance of the potentiometers may highlight a problem. But how do you fix it?

This document will take you through step by step on taking the MDK apart, cleaning the potentiometers and putting it back together.


· Registered
145 Posts
Excellent write-up. Very helpful and appreciated.

I recently rebuilt this same model MDK and support all steps in your tutorial.

Your validations via resistance testing are brilliant. Certainly beats the "well it works now" approach I took
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