Anyone can guide me the power mirror relay location on 96 Mercedes S320
 

Hello! Anyone know where is the power mirror relay located on 96 Mercedes S320?

Both side mirrors folded and not release. I think that need to replace the relay. Anyone know the parts # and where is located on the car?

Thanks

Doubtful you have a relay problem. Take a flashlight and peek into the folded mirror and see how bad the insulation is for the wiring. Likely the wires are bare, shorted, and causing your problems. Rule that out before trying to diagnose further.

The W140 chassis used a mirror/steering column control unit. Under the passenger side carpet.

As noted...most likely an issue with wiring.