because the controller broke or is disconnected,you need to open glove box remove Phillips screw on right side of vent cover,gently pull vent away from dash,then you will need to inspect operation of linkage that opens/closes vents,repair accordingly.
Check fuses
what kind of timing belt 1991 mercedes benz 500sl have
No they will not.
How do I rebuild a fuel pump for a 1991 350sd mercedes benz?
my 1991 Mercedes 420sel have probleme when i sheiffing to reverse gear take long be enquad
In the 1991 Mercedes 500SL the battery is located in the trunk on the passenger (right) side of the car. -sf-
How do you reset the check engine light on a 1991 mercedes Benz 560 Sel
I have now had the problem fixed, simply a bad connection under the dash. All is now fine.
Mercedes-Benz has a multitude of different models, can you be more specific? A 1991 SL500 Mercedes Benz roadster?
special key only a Mercedes dealer can provide
* Blown Fuse * Defective Switch (switches do wear out eventually) * Wiring possibly got pinched or severed
Because it is 17 years old. You try getting a teenager to do some work and let me know how you go.