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Brake Fluid Level, Checking: Procedure:

-- Check The Brake Fluid Level Based On The Markings -Image- In The Brake Fluid Reservoir.

Fig 1: Brake Fluid Reservoir
GWWA47-10258Courtesy of AUDI OF AMERICA, LLC

-- Perform The Following Actions Depending On The Test Result: 

Fluid level: Evaluation / Action:
Over the MAX mark Extract the brake fluid.
Under the specified level Perform a leak test for the brake system. Refer to BRAKE LEAK TEST / BRAKES HYDRAULIC SYSTEM [CYMC, DFVA, CWGD, DBPA, DECA] .
NOTE:

Due To Wear And The Automatic Adjustment Of The Brake Pads While Driving, The Brake Fluid Level Lowers.