Warnings And Cautions - BMW 5251 Service Manual

Brakes
Warnings and cautions
WARNING-
.
E39 cars require special BMWsen/ice equipment toprop-
erly bleed the brake hydraulic system. See Bleeding
Brakes for additional information.
Semi-metallic and metallic brake friction materials in
brake pads or shoes may produce dangerous dust.
Brake fluid is poisonous, corrosive and dangerous to
the environment. Wear safety glasses and rubber
gloves when worliing with bralie fluid. Do not siphon
brake fluid with your mouth. Dispose of brake fluid
properly
Do not reuse self-locking nuts, bolts or fasteners. They
are designed to be used only once and may fail if re-
used. Always replace them with new self-locliing fas-
teners.
CAUTlOI\C
Immediately clean bralie fluid spilled on painted surfaces
and wash with water, as bralie fluid will remove paint.
Always use new brake fluid from a fresh, unopened
container. Brake fluid will absorb moisture from the air.
This can lead to corrosion problems in the braking sys-
tem, and will also lower the fluid boiling point.
.
Plug open lines and brake fluid ports to prevent con-
tamination.
Only tighten brake hoses on front wheels with wheels
in straight ahead position.
If carrying out electric welding worlc, be sure to discon-
nect electrical harness connector from electronic con-
trol module.
Do not expose electronic control modules to high sus-
tained heat, such as in a paint drying booth. Maximum
heat exposure:-95°C (203 O F ) for short periods of time-
85'C (185°F) for Ions periods of time (approx. 2 hours)