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Brake Fluid Replacement Instructions

Model: BMW Serie 3 E36 - Years 1990-2001
Part: Brake fluid

The first recommendation is to avoid contact between brake fluid and the vehicle's body, as it is very corrosive. To replace the brake fluid, it is preferable to have the appropriate tool that keeps the brake system pressurized to facilitate draining through the bleed valves on the brake calipers. First, empty the brake fluid reservoir using a shop syringe. Connect the drain plug in place of the reservoir cap, fill it with new brake fluid, and pump to maintain pressure in the system while gradually adding new fluid; at this point, connect a bottle with a tube to the bleed valve on the brake caliper and open the valve to allow the old fluid to escape: continue until you see clean new fluid coming out of the valve. Repeat the process on each wheel. If you do not have the tool, you can achieve the same result by having someone pump the brake pedal while you open the bleed valves and gradually fill the reservoir with new fluid.

Updated on 4 February 2026 by ScegliAuto

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