Audi A4 with 2001- 2005 of release.
	1. Operation and car maintenance service
	2. The engine
	3. Transmission
	4. A running gear
	5. The steering mechanism
	6. Brake system
		6.1. Preliminary checks
			6.1.1. Brake disks
			6.1.2. Check of brake system
			6.1.3. Replacement of a brake liquid
			6.1.4. Visual check of brake system on presence негерметичности and damages
			6.1.5. Check of a thickness of brake overlays
			6.1.6. Check at high and at low pressure
			6.1.7. Check of residual pressure
			6.1.8. Troubleshooting at unilateral deterioration brake pads
			6.1.9. Check of the main brake cylinder
			6.1.10. Prorolling of brake system
			6.1.11. Process of removal of air for cars with electronic system of maintenance of course stability (ESP)
		6.2. Repair of brake system
		6.3. Repair of brakes of forward wheels
		6.4. System ABS
		6.5. Tables
	7. An onboard electric equipment
	8. A body
	9. Electric equipment schemes

6-1-5-proverka-tolshhiny-tormoznykh-nakladok.html

6.1.5. Check of a thickness of brake overlays

ATTENTION

The thickness of brake overlays equal 7 mm (taking into account the metal basis) means that overlays have reached borders of deterioration and are subject to replacement (fig. 6.8).

Brake overlays of forward disk brakes

Visually define a thickness of internal brake overlays (by means of a small lamp and a mirror).

a – a thickness of brake overlays (taking into account the metal basis).

Limiting deterioration: 7 mm.

Brake overlays of back disk brakes

Fig. 6.9. Visual check back brake pads

Visually define a thickness of internal brake overlays (by means of a small lamp and a mirror).

a – a thickness of brake overlays (taking into account the metal basis).

Limiting deterioration: 7 mm.

6.1.4. Visual check of brake system on presence негерметичности and damages

6.1.6. Check at high and at low pressure