Combination valve, removing and installing

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Special tools and equipment

Fig 1: Torque Wrench V.A.G. 1331 (5 To 50 Nm)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

V.A.G 1331 Torque wrench (5 - 50 Nm)

Removing

Remove engine cover.
Remove intake manifold upper part. Refer to Engine code AEG
Disconnect pressure hose from combination valve.
Remove middle insulation tray

Refer to NOISE INSULATION (GASOLINE ENGINES), ASSEMBLY OVERVIEW or NOISE INSULATION (DIESEL ENGINES), ASSEMBLY OVERVIEW

Unbolt heat shield for right side drive axle.
Unbolt lower support of combination valve connecting pipe to exhaust manifold.
Unbolt upper support of combination valve connecting pipe to exhaust manifold and remove pipe.
Depending on version, disconnect Heated Oxygen Sensor (HO2S) -G39-.

Remove warm air collector plate with combination valve.

Fig 2: Warm Air Collector Plate, Bolts, Combination Valve & Holes

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Guide a 5 mm hex socket head bolt into holes -3- of warm air collector plate -1- and remove bolts -4- for combination valve -2-.
Remove combination valve.

Installing

NOTE:

Thoroughly clean contact surfaces between combination valve and warm air collector.
Replace seal

Installation is performed in reverse sequence of removal.