I purchased a new 2013 S40 just over two months ago. As of today I have just over 3,100 miles on it, and noticed that there are some marks on the belt that look like it is being chewed up a little. I guess I am just wondering if this is normal wear and tear, or if this could be an indicator of a bigger problem such as the belt not being aligned properly. I did a search and couldn't find anything on this topic, so I took some pictures and have attached them along with links to higher resolution images.


Thank you

-Josh

Just a guess but did you feel the edges of each part of the sprockets to see if one is sharp or has a protrusion that's causing the marks?

Look at the pulleys & see if theres any rough spots that will continue to chew on the belt.

Cloudy wrote on 10/09/13 at 17:01:56:



The road that I live on actually switches from pavement to gravel about a quarter of a mile before I get to my driveway. That would make a lot of sense if that were the cause. I will investigate the pulleys tomorrow for rough spots when it's light out.

If those look fine it's more than likely from the gravel, which would be unavoidable I suppose.

Thanks for the prompt and helpful replies.


Also, the roads I ride between work and school throughout the day have been getting resurfaced, and when I try to take alternate routes I just hit more roads that are being resurfaced (I know, in Minnesota there's two seasons; Winter and Road Construction). I did notice that about two weeks ago there was a lot of loose chunks of road being flung up at me, and a larger one hit the bottom of my bike making a loud thud. I didn't notice much if any wear on the belt before school started back up and I was hitting the construction.