Description & Operation: Notes
WARNING: This page is about a different car, the 2004 BMW Z4 and 2003 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Brake friction materials such as brake pads or pads contain abrasive fibers which can lead to illnesses. Do not create dust by grinding or sanding, or cleaning the pads with compressed air. Wash away or vacuum up brake dust. Avoid breathing any brake friction fibers or dust.
WARNING:
Brake fluid is poisonous, highly corrosive and dangerous to the environment. Wear safety glasses and rubber gloves when working with brake fluid. Do not siphon brake fluid with your mouth. Use a siphon system dedicated to brake fluid only. Immediately clean away any fluid spilled on painted surfaces and wash with water. Dispose of brake fluid properly.
CAUTION:
Do not reuse self-locking nuts, bolts or fasteners. They are designed to be used only once and may fail if reused. Always replace them with new self-locking nuts. Ensure cleanliness and only use rags which do not lose lint. Ensure that no oils or grease enter the brake system. These substances would cause complete failure of the entire brake system. When cleaning brake components with brake cleaning fluid, none must enter the brake system.
NOTE:
For information on Anti-Lock Brake Systems (ABS), see ANTI-LOCK/TRACTION CONTROL article.
Brake system is hydraulically-operated, using a tandem master cylinder and power brake booster. All models are equipped with single piston front and rear disc brake calipers. A brake pressure regulator is used to reduce fluid pressure to rear brakes.
Parking brake is cable actuated on rear brake and consists of internally mounted parking brake shoes. Basic adjustment of the parking brake is required whenever:
- Brake shoes are replaced.
- Brake discs are replaced.
- Bowden cable is replaced.
- Bowden cable guide tube is replaced.
- Adjusting unit is reset.
- Actuating stroke is excessive.