VW Touareg repair


+ 1. Operation and car maintenance
- 2. Engine
   + Preliminary checks on the car
   + Mechanical part (petrol engines 3,2L)
   + Mechanical part (petrol engines 4,2L)
   + Mechanical part (diesel engines 5,0L)
   + Removal and stretcher installation
   + pressurization System (diesel engines)
   + cooling System (petrol engines)
   + cooling System (diesel engines)
   + greasing System (petrol engines)
   + greasing System (diesel engines)
   + injection System (petrol engines)
   + injection System (diesel engines)
   - System of production of the fulfilled gases
      Alignment of final system
      Removal and installation of a final collector and reception pipe with primary catalysts
      System of supply of secondary air
      Check of the combined valve
   + System топливоподачи (beninovy engines)
   + Tables
+ 3. Transmission
+ 4. Running gear
+ 5. Steering mechanism
+ 6. Brake system
+ 7. Onboard electric equipment
+ 8. Body
+ electric equipment Schemes


Volkswagen Touareg / Touareg repair>> Engine>> System of production of the fulfilled gases>> System of supply of secondary air
Action principle
At cold start (temperature of cooling liquid: +15... +35 °C) the system of supply of secondary air during 65 with submits air for final valves. At the expense of this OG are enriched with oxygen, there is a secondary reburning and, thus, the phase of warming up of the catalyst is reduced. Management is carried out by the Motronic J220 control unit via the relay of the pump of secondary J299 air to the inlet valve of secondary N112 air, (Perepuskny the valve) and to the combined valve. In addition to it after each subsequent start of the engine (at engine temperature to 85 °C) the system of supply of secondary air joins with a delay about 20 with on 5 with on single turns and is tested by self-diagnostics system.

Relay of the pump of secondary J299 air

Fig. 2.303 . Relay of secondary air


NOTE
The relay of the pump of secondary J2991 air is inserted into A4 nest.
If the auxiliary tool is necessary for removal of the relay or control units from a block of the relay, at first it is necessary disconnect a weight wire from joint stock bank.



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