Operation CHARM: Car repair manuals for everyone.

Pressure Bleeding






PRESSURE BLEEDING

CAUTION: Do not spill brake fluid on any painted surface. Brake fluid can damage paint.

Use brake fluid approved to MB 331.0, such as Mopar(R) part number 0454925AC, or a DOT 4 brake fluid with: minimum dry boiling point (ERBP) 500°F, minimum wet boiling point (WERBP) 356°F, maximum viscosity 1500 mm 2/s, conforming to FMVSS 116 and ISO 4925.

DO NOT pump the brake pedal at any time while bleeding. Air in the system will be compressed into small bubbles that are distributed throughout the hydraulic system. This will make additional bleeding operations necessary.

DO NOT allow the master cylinder to run out of fluid during bleeding operations. An empty cylinder will allow additional air to be drawn into the system. Check the cylinder fluid level frequently and add fluid as needed.

Follow the manufactures instructions carefully when using pressure equipment. DO NOT exceed the tank manufactures pressure recommendations. Generally, a tank pressure of 51-67 kPa (15-20 psi) is sufficient for bleeding.

Fill the bleeder tank with recommended brake fluid and purge air from the tank lines before bleeding.

DO NOT pressure bleed without a proper master cylinder adapter. The wrong adapter can lead to leakage, or drawing air back into the system. Use an adapter provided with the equipment.