I've read many posts on the fix for intermittently working cruise control to replace the brake light bulbs as a first cheap fix without going to the module. My questions is: Are you guys replacing them even when they are working fine? Is the cruise control that sensitive to slight degradation of the bulb?

I've also read that as long as the bulbs are of good quality and new, it doesn't have to be Mercedes OEM bulbs, what's you experience out there? I guess the one way to make sure they are of good quality is to get the OEM bulbs...

Thanks,