Hi all,
I am brand new to this forum. I am looking forward to learn as much as I can from all the knowledge and expertise here.
I just bought a 1996 S420 with only 40,000 miles. I have only put on about 50 miles on it and have started to hear a noise coming from the front of the motor (center to left side) that sounds like a pulley.
Removed the belt and spun each of the pulleys (not including the fan), and there was no noise (probally because of no belt tension).
My question is: Can I remove each of the pulleys, grease them and put them back on, OR is by the time you hear a noise, TOO LATE?

Thanks in advance,
Marcio