Brake Master Cylinder - Non-Pressure External Leaks

Brake Master Cylinder - Non-Pressure External Leaks
A low brake fluid level in the brake master cylinder reservoir may be caused by these non-pressure external leaks:

Type 1: An external leak may exist at the brake master cylinder filler cap due to incorrect position of the cap, cap gasket or cap gasket deterioration. Repair or install new components as necessary.

Type 2: An external leak may exist at the brake master cylinder mounting flange due to internal seal failure. Repair or install a new brake master cylinder.

Type 3: An external leak may exist at the base of the brake master cylinder reservoir due to deteriorated reservoir mounting seals. Repair or install a new brake master cylinder.