It is often very easy to neglect what we can’t see. “Out of site, out of mind,” but don’t let that be your motto for success, especially if you own a classic car. While newer cars can go many more miles without looking under the hood, it is a good idea, to lift the hood regularly and check things out.
One specific item to check yearly, are the belts. In the case of the 1975 450SL Mercedes-Benz, there are five belts to take a good look at. As you can see, one belt serves the A/C compressor, one belt serves the air or smog pump, one belts serves the alternator and two belts serve the power steering and water pump.