How do I put up the power windows if the up and down switches don't work. on 1999 Mercedes-Benz SL500

Is there safety switch that locks windows in a position.?

by in Cathedral City, CA on October 01, 2013
2 answers
ANSWER by on October 01, 2013
check fuses and relays, check for power at the switch, if all good replace switch...
ANSWER by on October 02, 2013
agree with t bone or have it ck"d