Q7 Quattro V6-3.6L (BHK) (2007)
Compressor Pulley: Service and Repair
Pulley - Version "1", Removing From Compressor and Re-Installing
Pulley - Version "1", Removing From Compressor And Re-installing
NOTE:
-
If overload safeguard of pulley triggers, check compressor for ease of motion before replacing the pulley, replace it completely if compressor
moves with resistance.
-
To remove belt pulley, it depends on engine version if it is necessary to remove compressor from engine.
-
The compressor can be removed and installed at the bracket without opening the refrigerant lines.
-
Mark direction of rotation of ribbed belt using chalk or felt-tip marker before removing. Reversing the direction of rotation of a run-in belt can
destroy the belt.
-
Depending on engine and country version, different compressors are installed (6 or 8 cyl. engine, etc.). Parts Catalog
-
Remove noise insulation.
-
Release tension on ribbed belt and remove it.
-
If necessary, remove power steering pump (6 cyl. gasoline engine only).
NOTE:
-
Belt pulley is made of plastic and is sensitive to impact, therefore handle it with special care
-
If overload safeguard of drive plate - C - has triggered, drive plate can be pried off from belt pulley - D - after removing circlip - A -
-
Depending on production time period, drive plates with 3 holes (as shown) or one outer hex head on the front side are installed.
-
A plastic disc - B - may be glued on or a circlip with a rubber disc vulcanized on to it may be installed on drive plate of belt pulley - A - to
optimize noise reduction Parts Catalog. This plastic or rubber disc - B - can reduce a clapping (castanet-like) noise which occurs especially at belt
pulley in A/C system operating mode "Econ" (the noise is almost inaudible with A/C system operating at full output).
Belt pulley, removing and installing
Removing