Service of Audi A4 from 2001 to 2005 release.
	1. Operation and maintenance of the car
	2. Engine
		2.1. General information
		2.2. Predvaritlny checks
		2.3. Mekhanichsky part (petrol engines 2,0l)
		2.4. Lubrication system
		2.5. Cooling system
		2.6. System of injection
		2.7. System of production of the fulfilled gases
			2.7.1. Separation of the additional and main muffler
			2.7.2. Removal and installation of a reception pipe
			2.7.3. Free installation of final system
		2.8. Mechanical part (petrol engines 3,0; 3,2 l)
		2.9. Mechanical part (petrol engines of 4,2 l)
		2.10. Mechanical part (diesel engines of 2,0 l)
		2.11. Tables
	3. Transmission
	4. Running gear
	5. Steering mechanism
	6. Brake system
	7. Onboard electric equipment
	8. Body
	9. Schemes of electric equipment

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2.7.2. Removal and installation of a reception pipe

Fig. 2.84. Tightening collar

Weaken tightening a collar and shift (fig. 2.84) back.

Separate a reception pipe and the catalyst.

Fig. 2.85. Reception pipe of the catalyst

Turn off a bolt 1 on an arm of a reception pipe and remove a pipe (fig. 2.85).

Inhaling moments

Reception pipe to the catalyst * – 40 N · m **.

Support to a check point/reception to a pipe – 40 N · m.

Tightening a collar – 23 N · m.

* Replace a bolt or a nut.

** Grease adjusting pins of a final collector or a carving of the lyamda-probe with heat-resistant paste; heat-resistant paste.