Turns out both were trashed. The alternator pulley was locked and the alternator front bearing was noisy and had excessive play. The idler arm had lots of side-side play and poor tension. A box of parts and some time under the hood and I am back in business.
Ha! Explains the shiny belt.
Thanks for giving me something to work with. Sounds doable. 190k miles, I guess at some point a idler is going to wear out.
My Bentley manual doesn't address the tensioner replacement. I assume the idler/tensioner comes as a combined assembly.
Car sounds like it is shaking apart. Looked under the hood and the noise seems to come from the part labeled in red below. It shimmys back and forth against the engine block with the engine at idle.
What is it ?
Why is rattling ?
What does it take to fix it ?
Please tell me that it just holds...
Success ! Got them back in. They run, the AC works and the coolant doesn't heat up at traffic lights.
I just noticed your location. Do you have a good independent TDI mechanic in Fairfax ?
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