audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

ABOUT US
Checking mechanical EGR valve > < Removing and installing EGR system components

A4 Mk1

4-Cyl. TDI®Engine, Mechanics
Exhaust gas recirculation system
Connection diagram for exhaust gas recirculation
 
A26-0486
  • To vent port on charge pressure control solenoid valve -N75
  • Mechanical EGR valve
  • Vacuum hose
    • ◆ From EGR valve -N18 to mechanical EGR valve
  • To charge pressure control solenoid valve -N75
  • Vacuum hose
    • ◆ To vent connection on air cleaner housing
 
A26-0486
  • EGR valve -N18
    • ◆ Fitting location: on rear of air pipe
  • Vacuum hose
    • ◆ To fuel cooling circuit cut-off valve
  • Cut-off valve for fuel cooling circuit
  • Vacuum hose
    • ◆ From tandem pump
  • Vacuum hose
    • ◆ From tandem pump

Checking mechanical EGR valve > < Removing and installing EGR system components