| Possible causes of malfunction | Method of elimination |
| Brake warning light is on | |
| Brake fluid leak | Fix the leak or add fluid |
| The parking brake switch is closed to "ground" | Repair the "ground" fault |
| Brake fluid level sensor malfunction | Replace the sensor |
| Brake light on | |
| Brake light switch malfunction | Replace the brake light switch |
| The length of the vacuum booster rod is less than the required length | Adjust the length of the vacuum booster rod |
| Brake light switch circuit shorted to battery positive | Repair or replace the electrical wiring |
| Ineffective braking | |
| Leaking or lack of brake fluid | Fix the leak or add fluid |
| Contamination of brake fluid | Replace brake fluid |
| Presence of air in the brake fluid | Remove air from the brake system |
| Damage to brake hoses | Replace brake hoses |
| Damaged vacuum hose or faulty check valve | Replace the vacuum hose or check valve |
| Brake seizing (sticking) | |
| There is no play in the brake pedal | Adjust the clearance |
| Weakening of the brake pedal return spring | Replace the return spring |
| Master brake cylinder malfunction | Replace the master cylinder |
| Presence of air in the brake system | Remove air from the brake system |
| Long brake pedal travel | |
| Leaking or lack of brake fluid | Fix the leak or add fluid |
| Incorrect adjustment of brake pedal play | Adjust the length of the brake booster rod |
| Uneven braking of the front wheels | |
| Faulty caliper | Replace the caliper |
| Piston jamming in the caliper | Repair or replace the caliper assembly if necessary |
| Jamming (grabbing) front wheel brakes | |
| Piston jamming in the caliper | Repair or replace the caliper assembly if necessary |
| Noise and vibration of the front wheels when braking | |
| Excessive brake disc runout | Replace the disk |
| Interfering effect of dust cover | Repair the dust cover |
| Loosening the caliper mounting bolts | Tighten the mounting bolts |
| Insufficient braking force of the rear wheels | |
| Severe wear of brake pad linings | Replace the brake pads |
| Oil or brake fluid gets on the brake shoe lining | Check for leaks from the wheel cylinder and replace the wheel cylinder or brake pads if necessary |
| Malfunction of the working brake cylinder | Replace the wheel brake cylinder |
| Malfunction in the self-regulation system | Repair the self-adjustment |
| Uneven braking of the rear wheels | |
| Oil or brake fluid gets on the brake shoe lining | Check for leaks from the wheel cylinder; if necessary, replace the slave cylinder or brake pads |
| Malfunction of the working brake cylinder | Replace the wheel brake cylinder |
| Malfunction in the self-regulation system | Repair the self-adjustment |
| Brakes grabbing after releasing the brake pedal | |
| Weakening of the brake shoe return spring | Replace the brake shoe return spring |
| Malfunction of the working brake cylinder | Replace the wheel brake cylinder |
| Excessive brake pedal travel | |
| Excessive wear of brake pad linings | Replace the brake pads |
| Malfunction in the self-regulation system | Repair the self-adjustment |
| Noise or vibration from rear wheels when braking | |
| Foreign material entering the brake drum | Clean the brake drum |
| Loosening the brake disc mounting bolt | Tighten the brake disc support mounting bolt |
| Brake drum damage | Replace the brake drum |
| Poor parking brake braking force | |
| Oil or brake fluid gets on the brake shoe lining | Check for leaks from the wheel cylinder; if necessary, replace the slave cylinder or brake pads |
| Malfunction in the self-regulation system | Repair the self-adjustment |
| Poor parking brake cable adjustment | Adjust the length of the parking brake cable |
The original material is available on the portal vwmanual.ru
Visitor comments