2006 VW Rabbit 2.5 85k
I have been experiencing a noise coming from the passenger side of the engine bay, that is an intermittent loud Tick/Grind. This is only noticeable when the A/C is running at idle. The belts and pulleys appear to be spinning true with no jumps or bites, and the A/C is operating 100% fine (cold). I'm hoping for any tips to diagnose this noise.

I have been experiencing a noise coming from the passenger side of the engine bay, that is an intermittent loud Tick/Grind. This is only noticeable when the A/C is running at idle. The belts and pulleys appear to be spinning true with no jumps or bites, and the A/C is operating 100% fine (cold). I'm hoping for any tips to diagnose this noise.