Audi AMB Service Manual page 234

ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
Requirement
Vehicle Diagnostic, Testing and Information System VAS5051 or Scan Tool VAG1551 must be

connected.
Work sequence
NOTE:
The Recirculating valve for turbocharger N249 and its wiring are monitored

by the engine control module.
Read DTC memory of engine control module.

If display shows a DTC relating to Recirculating valve for turbocharger N249 :
Fig. 306: Identifying Secondary Air Injection (AIR) Solenoid Valve -N112-
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Disconnect hoses from Recirculating valve for turbocharger N249 - 1 - ; leave electrical connector

connected.
Location: under intake manifold

NOTE:
The illustration shows a removed intake manifold viewed from below.

2005 Audi A4 Quattro
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