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Home >> BMW >> 1992 >> 318i 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Brakes - Repair) >> Testing >> Service Brake >> High-Pressure Test

High-Pressure Test

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NOTE: Perform test on both brake circuits, front and rear.
  1. Unscrew vent plug, connect pressure tester and vent. See Figure.
  2. Load brake pedal with a force of approximately 112 lbs. (500 N), and block pedal with pedal support.
  3. After 2 minutes, pressure must not drop by more than 8%.
  4. Perform low-pressure test.
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