BMW Coupes and Sedans 1970-1988 Repair Guide

Auxiliary Air Regulator

Print

TESTING



  1. Disconnect the electrical terminal plug and the 2 air hoses at the auxiliary air regulator.
  2.  
  3. Voltage must be present at the terminal plug with the ignition switch ON .
  4.  
  5. Check the air bore of the regulator. With the engine temperature approximately 68°F (20°C), the bore should be half open.
  6.  
  7. Connect the terminal plug and the 2 air hoses tot he auxiliary air regulator.
  8.  
  9. Start the engine and the auxiliary air regulator bore should close within 5 minutes of engine operation by the cut-off valve.
  10.  

REMOVAL & INSTALLATION



  1. Remove the hoses attached to the regulator.
  2.  
  3. Disconnect the electrical harness attached.
  4.  
  5. Remove the 2 Allen bolts securing the regulator assembly to the intake manifold.
  6.  

To install:
  1. Position the regulator on the manifold and secure with the Allen bolts.
  2.  
  3. Connect the electric harness and hoses.
  4.  

 
label.common.footer.alt.autozoneLogo