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Secondary air system > < Electrical test of exhaust gas recirculation valve N18 and exhaust gas recirculation potentiometer G212

A3 Mk1

Removing and installing exhaust gas recirculation valveN18 with exhaust gas recirculation potentiometerG212
Removing and installing exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212-
   
Removing
–  Unbolt heat shield for drive shaft (right-side) -arrows-.
  A10-0921
–  Loosen the union nut -arrow- of the connecting pipe for exhaust gas recirculation.
  A26-0724
–  Take off engine cover panel -arrows-.
  A10-0885
–  Disconnect hose -4-.
–  Release spring-type hose clips -1-, -2- and -3- to remove air intake hose.
  A15-10191
–  Detach connecting pipe for exhaust gas recirculation from throttle valve housing -arrows-.
  A26-0725
–  Detach electrical connector -1-.
–  Unscrew nuts -2- and -3- and detach connecting pipe for exhaust gas recirculation from exhaust gas recirculation valve.
–  Remove exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212-.
Installing
Installation is carried out in the reverse order; note the following:
  Note
Renew gaskets.
Tightening torques
  A26-0726
ComponentNm
EGR connecting pipe to exhaust gas recirculation valve23
EGR connecting pipe to throttle valve housing10
EGR connecting pipe to exhaust manifold60
Drive shaft heat shield to cylinder block35

   

Secondary air system > < Electrical test of exhaust gas recirculation valve N18 and exhaust gas recirculation potentiometer G212