4 | How to use
4.1 | Preparation
To replace the hydraulic fluid and bleed the hydraulic system, jack up the vehicle
securely and place an impermeable underlay underneath the vehicle so that
hydraulic fluid cannot be released into the environment accidentally.
DOT 3, 4 and 5.1 brake fluids are hygroscopic (absorb moisture)
and should therefore be replaced completely every two years. Some
manufacturers specify changing the fluid once a year. DOT 5 silicone-
based brake fluid (mostly used on Harley-Davidson models) is not
hygroscopic. Refer to the vehicle owner's manual for the replacement intervals.
CAUTION!
Risk of poisoning!
DOT 3, 4 and 5.1 brake fluids are toxic and corrode paintwork!
• Protect your hands when working using appropriate gloves
and wear protective goggles as necessary.
IMPORTANT!
Risk of damage!
It is imperative to make sure that the brake fluid cannot drip
onto painted surfaces.
• Carefully cover the surrounding area beforehand. Remove
any drops of brake fluid immediately with copious amounts
of water.
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