Removing Mercedes R107 450SL Dashboard Vents

After 43 years, the heat and A/C vents are filthy and not moving freely as they did from the factory. While the dashboard is out and being prepped for refinishing I decided to remove the five ball vents for a good cleaning. Here is how to do this with ease. 

The vents are held to the dashboard by a large "wave" washer and two built in clips. 

To remove the vent nozzle depress one of the plastic tabs and gently lift up on that side to keep it from snapping back in place. Repeat the process with the other tab and gently separate the two halves. For the three center vents, a wide flat screwdriver worked great. The end vents however, did not have the room needed for the screwdriver and so I used a paint can opener which worked excellently. 

Next, take a very small screwdriver and gently pry wave washer over tabs and carefully press remaining assembly through the front of the dashboard. 

Once the vent assembly has been removed, it can be cleaned. I use Dawn liquid dish detergent and a soft toothbrush and warm water. The results could not be better. NOTE: Remember the plastics are old and brittle. Be very careful and don't force anything—unless money is no object. 

The vent assembly looked and worked like new after cleaning and reassembly. It's worth the time and effort.

DO NOT grease or lubricate any part in the vent assembly. It was not done from the factory and should not be done now as any lubricant will attract a considerable amount of dirt in the vent. If the vents don't feel buttery smooth, know they weren't when the car was new either. 

The process of installation is the reverse.