1997 Mercedes-Benz S600 Q&A

1997 Mercedes-Benz S600 Question: Have a 1997 S600, 107,000 miles. Grinding? noise coming from the engine.

Took to Mercedes friend. Said possible chain wear. The guide? Only on one side. Used heatmeter, one side warmer by 20 degrees. Will make noise when car is running and will make noise as I speed up. -
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