SEAT Workshop Service and Repair Manuals

Special tools, testers and auxiliary items

• ◆ Hand vacuum pump V.A.G 1390

Test sequence

• ‒ Pull vacuum hose off (mechanical) exhaust gas recirculation valve.
• ‒ Connect hand vacuum pump V.A.G 1390 to valve.

• ‒ → Operate pump.
      The membrane rod must move towards
      vacuum connection (observe membrane rod
      via opening -arrow-).
• ‒ Pull hand vacuum pump hose of exhaust gas recirculation valve.
      The valve must clearly heard to close (membrane rod moves
      towards intake manifold).