Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMINI2013COOPER COUNTRYMAN, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 54 (DISC - Z8)TESTINGHYDRAULIC SYSTEMHIGH PRESSURE LEAK TEST
2013 Mini Cooper Countryman, Standard Trans
High Pressure Leak Test
2013 Mini Cooper Countryman, Standard TransSECTION High Pressure Leak Test
WARNING: This page is about a different car, the 2003 BMW Z8 and 2002 BMW Z8. However, it is still accessible from the selected car via links, so may be relevant.
- Check brake system for proper operation and leaks. Remove front wheel and caliper bleeder screw. Attach Pressure Tester (32-4-000) to one side of brake circuit.
- With engine off, apply about 150 lbs. (67 kg) of pressure to brake pedal.
- Hydraulic line pressure should increase to 710 psi (50 kg/cm2 ). After 2 minutes, pressure should not drop more than 57 psi (4 kg/cm2 ). Repeat test on other side of brake circuit.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.