1999 C280, 95K miles.

The power seats in both passenger and driver are failing to move after car startup. I only regain control after 15-30 minutes of driving. I checked the battery voltage hours after driving and had 13.6V. I checked the voltage a day after driving, early morning, 12.4-13V was the range.

I also checked the fuse box in the front of the car, but I failed to find any problems. I am dumbfounded because the power seats will work after some time, since if it would have seized altogether, I could have checked the motors, and etc.

I havent idled the car for 30 minutes to see if that will make the seats work, but I assume it will since I have idled for 10-15 minutes and then after a couple of minutes of driving the power seats work again as opposed to the 15-30 minutes of driving.

Thanks for the help.