Hey guys Im not sure when it began happening but after I took my car into Car Toys to have my Amp and Subwoofer placed in now my rear driver side window will roll up and down but the second click up to make it auto roll doesnt work. Also it now seems like when it rolls up it doesnt stop in time so the window rolls back down paritially, almost seems to protect the window from breaking. I then can roll it up to seal.. Any ideas? Its frustrating to say the least.

2009 C300 Sport

Thanks for all the help guys.

This little glitch is like an old friend.

With the switch, open the window all the way and hold the switch an additional five seconds. Then, close the window holding the switch for the same five seconds. 99% of the time this works the first time. If it doesn't, do it again.

You can do the same thing from outside using the door lock and unlock buttons on the remote to reset all four windows simultaneously.

Same thing happened with my window, so i took it to the dealership to get it check out. my SA did what RLE said to do but it didnt work on mine, so they hooked it up to the computer and and had reset it or something. didnt charge me anything.

The directions are in your Owner's Manual. It is called "resyncing" and it applies to the windows and the sunroof.

As always thank you guys. I will try this as soon as I can and let you know how it gos. I lost my owners manual in my move . If anyone has one extra or has a PDF of one i would greatly appreciate it!!!!!! . Again thank you!!

Tried both to no avail . Any other ideas???

take it to the dealership. they fix it for free

Sweet!! Thank you I will swing by the dealer when I can