1. Locate the power steering fluid reservoir. It is usually located on the passenger side of the engine compartment, near the firewall. It is a clear or translucent plastic container with a black cap.
2. Check the fluid level. The fluid level should be between the "MIN" and "MAX" marks on the reservoir. If the fluid level is low, you will need to add more fluid.
3. Add power steering fluid. Use a funnel to add power steering fluid to the reservoir. Be careful not to overfill the reservoir.
4. Replace the cap. Once you have added enough fluid, replace the cap and tighten it securely.
Here are some additional tips for adding power steering fluid to a 1987 Mercedes-Benz 420:
* Use only power steering fluid that is recommended by Mercedes-Benz.
* Do not mix different types of power steering fluid.
* If you spill any power steering fluid, clean it up immediately. It can be harmful to your skin and eyes.
* If you are unsure about how to add power steering fluid to your Mercedes-Benz, consult a qualified mechanic.
Checking the power steering fluid regularly and maintaining the proper level is important to keep your Mercedes-Benz 420's power steering system functioning properly.
