Poly V belt
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MBWorld Fanatic!
Joined: Jun 2011
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From: Canada
A car
Poly V belt
My car is approaching the 6 year old and I'm still on the original poly V belt. It still looks spotless - no cracking or anything. Surprising to me as I drive this car ***** deep on a daily basis....
When did you replace the Poly V (serpentine) belt on your car? E.g. how long did it last before you had to replace it? Thanks
When did you replace the Poly V (serpentine) belt on your car? E.g. how long did it last before you had to replace it? Thanks
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Joined: Apr 2016
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From: Milwaukee, WI
2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
Mine started squeaking due to tensioner. I think when I replaced tensioner I replaced the belt too...for some reason I don't remember doing the tensioner at all lol but I guess it was around 65k. However, the belt did look good. So idk.
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Joined: Jun 2011
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From: Canada
A car
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Joined: May 2017
Posts: 242
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From: West by god Virginia
'08 C300 4Matic Sport / '11 C63
Just replaced mine 2 weeks ago. Belt came off looking good actually not even any cracking. Can't say 100% for sure it hasn't been replaced before but if it was they used OEM MB for it.
Idler pulley was whirrring and I isolated to it's bearings being shot so just did a complete replacement on all. In theory looks like 10 years old and 83k miles before replacement.
Idler pulley was whirrring and I isolated to it's bearings being shot so just did a complete replacement on all. In theory looks like 10 years old and 83k miles before replacement.
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Joined: Nov 2016
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2008 C350 Sport 4Matic Swap
These cars seem to have tensioner issues at around 150 000-170 000km, it is also a good time to replace the v belt and idler pulleys while in there at that mileage because they will fail sooner rather then later at that mileage.
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Joined: Oct 2008
Posts: 2,601
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From: Atlanta, GA
2008 C300 Sport 6 Speed Manual, 1953 Chevy Bel-Air, 2015 Audi allroad, 1963 Chevy Apache
Does MB even give a change interval on the belts? I looked through the manual and it states to check it every two years, but no mention of replacement. About to hit 10 years but only 70K and it looks great so I'm wondering when I should consider changing it.
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From: Canada
A car
Cabin Air Filter - Every 30,000km (IIRC)
Every year - Sunroof - clean sliding rails and sliders
Every 2 years - Replace brake fluid, inspect suspension, paint damage
Every 4 years - Check driveshaft flex discs (80,000 km / 50,000 mi)
Every 4 years - Replace engine air filter element (80,000 km / 50,000 mi)
Every 5 years - Replace spark plugs (125,000 km / 80,000 mi)
Every 5 years - Replace fuel filter, activated charcoal filter (105,000 km / 65,000 mi)
Every 15 years - Replace coolant (250,000 km / 160,000 mi)
