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w211 E63 rattling noise from engine bay

 
Old 02-06-2017, 07:02 PM
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W211 E63
w211 E63 rattling noise from engine bay


So I had my car parked for about 2 weeks in the garage. I drove it all day everything seems good aside from this one rattling noise coming from the pulleys. Is it something some lubricant can solve, or does it look like my pulley is on the way out?
Thanks
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Old 02-06-2017, 08:00 PM
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2006 E55, 2005 C55, 2005 E320 Estate Sport, 2015 ML350
It's one of the pulleys. Lube isn't going to help. Get an automotive stethoscope and pin point which one it is.
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Old 02-06-2017, 08:35 PM
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W211 E63
Originally Posted by Rocman8 View Post
It's one of the pulleys. Lube isn't going to help. Get an automotive stethoscope and pin point which one it is.
Thanks Rocman
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Old 02-07-2017, 01:38 AM
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ya one of the pulley bearings is shot. change it ASAP or it could cause your belt to jump.
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Old 02-07-2017, 12:39 PM
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will do hachiroku thank you
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Old 02-08-2017, 10:04 AM
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07 E63 + 07 CLK63CAB
Weistec sells a complete set for our cars 5 pulleys, check out their website.
Have a set on both our cars and they are 1000% better than the plastic MB crap.
How they expect an engine than turns 7k rpm to survive using meltable plastic pulleys after about 30000km.
Bearing overheats and melts the outer race and you are sitting on the side of the road with a torn off serpentine belt and a tow bill.
Buy the complete CNC aluminum set with replaceable bearings The Best
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