Help with brake system problems (Audi A4 B5)

Malfunction	Its reasons	Your help
A. The brakes are pulling on one side	1. Tire pressure is not uniform 2. The tread pattern is worn unevenly 3. The pads are dirty, glassy or unevenly worn 4. The brake caliper pad guides are dirty or rusty 5. The pistons in the brake calipers or in the wheel brake cylinders are rusted 6. Brake discs are badly scratched or too thin 7. The brake hoses have swollen from the inside	Align when tires are cold Change your tires Replace Clean it up Restore free play or replace Replace brake discs Replace the hoses
IN. The brakes are squealing	1. The wrong pads are installed 2. Dust or dirt on disc brakes or drum brakes 3. See A 4–6	Install the original overlays Remove linings(pads), remove dust and dirt
WITH. The brakes are rattling	1. There is a dent in the brake disc 2. The brake disc is badly scratched	Replace Replace
D. One or all wheel brakes are very hot	1. The compensating hole in the master brake cylinder is clogged 2. There is no gap between the brake pedal (push rod) and the main pistons brake cylinder 3. The brake calipers are rusty 4. The handbrake does not disengage completely	Clean it up Adjust Repair in the workshop Check the brake cables and rear wheel brakes
E. Too much pedal travel reserve, pedal is depressed soft and springy	1. Air in the brake system 2. The brake system is not sealed 3. The master brake cylinder is faulty 4. When the brakes are subjected to heavy loads, steam bubbles form in the brake fluid that is too old brake fluid 5. See A 5	Bleed the brake system Conduct a leak test of the system Replace Replace brake fluid
F. Poor braking effect when pressing the pedal hard	1. Normal free pedal travel: the pads are oily or "glazed" 2. Short free travel of the pedal: the brake booster is faulty 3. Long free pedal travel: one brake circuit has failed due to leakproofness violations	Replace Check it out Check and replace damaged parts
G. One-sided or weak braking effect of the hand brake brakes	1. See points in A 2. The brake cable is rusty 3. The adjustment mechanism is faulty	Replace Check it out