Digging up an old thread...

So I bought a secure/tamper resistant torx bit, and was trying to loosen the serpentine belt pulley but all I managed to do was remove the secure torx screw/washer.

This is the screw which is in the middle of the tensioner pulley - am I correct?

Looking at the screw, there is a tiny little bit of blue thread lock - did the QA folks just miss my screw and it came out or am I loosening the wrong screw?

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Daily Driver: 02 E430 4MATIC
In the family: '03 E500 // '04 ML500 // 64 220SE