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In Passat or jetta TDI chirping in cold weather and cold start- how to solve,
you list Protective Cap #028 145 291 A (optional) which I purchased.

It appears to be the cap for the alternator pulley and is way too big to go on the serp tensioner pulley. I see that some replacement tensioner pulleys come with a cap, but mine didn't. What could be going on here? (Anybody want an alternator pulley cap?)
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