Volkswagen Polo Workshop Service and Repair Manuals

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

• ◆ V.A.G 1390 Hand vacuum pump

Test sequence

• ‒ Remove engine cover.
• ‒ Remove connecting hose between charge air pipe and intake connecting flange.
• ‒ Pull vacuum hose off (mechanical) exhaust gas recirculation valve.

• ‒ Connect hand vacuum pump V.A.G 1390 to valve.
• ‒ → Operate pump and observe membrane rod.

• The membrane rod must move in direction of arrow.

• ‒ Pull hand vacuum pump hose off exhaust gas recirculation valve.

• The membrane rod must move back against the direction of arrow to its original position.