Air Injection Control Valve: Service and Repair

Combination valve, removing and installing

Special tools, equipment, test and inspection devices; required accessories





- VAG 1331 torque wrench (5 - 50 Nm) or equivalent

Removing

Note: The battery ground strap must eventually be disconnected in the further course of work. Check whether the vehicle has a coded radio system. It may be necessary to disable the theft-deterrent feature by entering the appropriate code.

- With ignition off, disconnect battery.
- Remove damping pans.
- Put lock carrier into service position.

Vehicles with air conditioning
- Remove poly V-belt.
- Remove air conditioning compressor
- Remove refrigerant line retention strap(s).

CAUTION: The A/C refrigerant circuit must not be opened!

Notes:
- The refrigerant circuit may only be opened in workshops which have both the trained personnel and the proper tools and equipment.
- To prevent damage to the condenser and the refrigerant fines1hoses, be careful that the lines and hoses are not overextended, creased, or bent.

Procedure for all vehicles
- Remove discharge hose on combination valve between combination valve and air pump.
- Remove vacuum hose on combination valve.
- Remove combination valve from bottom of intake manifold and pull it out along with connection nozzles.

Install
Installation is in reverse sequence.