How to Refill Brake Fluid

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Maintaining the proper level of brake fluid will ensure that your automobile's brakes will function properly. It is a good idea to check the brake fluid level periodically and to replace it as needed. Replenishing your car's brake fluid is a simple task that most drivers can complete on their own with little time, money or effort. This article explains how to refill brake fluid within most standard automobiles.

Steps

1. 1
   

   Check the brake fluid level.
   Check the brake fluid level.

   
   

   • Park the car on a level surface and turn off the engine.
   • Pop the hood and locate the brake fluid reservoir, which is small, pale in color and usually mounted in the top driver's side corner of the engine bay.
   • Confirm the fluid level and ensure that additional fluid is needed before proceeding. Most newer automobiles are built so that the brake fluid level can be monitored while the reservoir remains sealed. You will only need to read the fluid level marks on the outside of the tank. Some older automobiles require fluid to be measured using a dipstick. Check your vehicle's owner's manual for detailed instructions on how to measure the brake fluid level.
2. 2
   

   Purchase an appropriate brake fluid.
   Purchase an appropriate brake fluid. Check your vehicle's owner's manual to see if there are any specific exceptions, but a standard DOT3 or DOT4 brake fluid is acceptable for most automobiles.
3. 3
   

   Remove the reservoir cap and add the brake fluid.
   Remove the reservoir cap and add the brake fluid. Use the minimum and maximum fill lines as a guide, if present. Also, a clean funnel may be used to help prevent spillage.
4. 4
   

   Wipe the brake fluid and its cap with a clean, dry rag to remove any dirt or debris.
   Wipe the brake fluid and its cap with a clean, dry rag to remove any dirt or debris. You will want to ensure that no loose particles are able to fall into the reservoir once opened.
5. 5
   

   Reinstall the reservoir cap and then wipe the area clean of any excess fluid.
   Reinstall the reservoir cap and then wipe the area clean of any excess fluid. Check to ensure that the cap is properly tightened and that the rubber gasket is seated properly before closing the hood and operating the vehicle.

   
   

Tips

• Blot any brake fluid spills immediately with a thick cloth, as it can act as a corrosive agent and damage paint or clothing.
• Always use a brand new, unopened container of brake fluid to ensure that moisture has not permeated the container and compromised the highly absorbent fluid.

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