Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Brake Fluid: Testing and Inspection


Always check the fluid level in the brake master cylinder before performing the test procedures. If the fluid level is not to 4 mm (0.16 inch) below the MAX line of the brake master cylinder reservoir, add High Performance DOT-3 Motor Vehicle Brake Fluid C6AZ-19542-AB or DOT-3 equivalent meeting Ford specification ESA-M6C25-A. If DOT 3 is not available use DOT 4 Brake Fluid meeting Ford specification SAE-J-1704-DOT 4.