heating AUDI A3 1998 8L / 1.G AEB ATW Engines Secondary Air System Workshop Manual

26-31



To prevent unnecessary heating, the secondary
air is diverted past the turbocharger -7-. For
this, the charge air pressureregulation pressure
unit opens the charge air pressure valve. The
pressure unit, designed as a double reservoir,
has a vacuum connection for this on the intake
side.
1 -
Secondary Air Injection (AIR) pump relay -
J299-
2 -
Motronic Engine Control Module (ECM) -
J220-
3 -
Secondary Air Injection (AIR) solenoid
valve -N112-
4 -
Intake manifold
5 -
Check valve
Installation position (light/dark side): Arrow
points in direction of flow, as shown
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