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Removing and installing mechanical exhaust gas recirculation valve > < Checking exhaust gas recirculation valve N18

A4 Mk1

Checking mechanical exhaust gas recirculation valve
Checking mechanical exhaust gas recirculation valve
Special tools and workshop equipment required
   
t  Hand vacuum pump -VAS 6213-
  W00-10259
Procedure
–  Detach caps on engine cover panel.
–  Unbolt and remove engine cover panel -arrows-.
  A10-0202
–  Disconnect vacuum hose from mechanical exhaust gas recirculation valve -arrow-.
  A26-0214
–  Connect hand vacuum pump -VAS 6213- to valve.
–  Operate hand vacuum pump -VAS 6213-.
–  Pull hose of hand vacuum pump off exhaust gas recirculation valve.
l  The closing of the valve should be clearly audible. The diaphragm rod should move towards the intake manifold.
  A26-0219

Removing and installing mechanical exhaust gas recirculation valve > < Checking exhaust gas recirculation valve N18