Replacing air conditioner compressor pulley (“Denso” make, version “3”) — AUDI

Replacing air conditioner compressor pulley (
“Denso”
make, version
“3”
)
Note
This type of pulley is fitted on the
“6 SEU 14”
air conditioner compressor version for example.
Various pulley designs are fitted depending on the type of air conditioner compressor and the engine version
Electronic parts catalogue
.
If the pulley overload safeguard has been tripped, check the freedom of movement of the air conditioner compressor before replacing the pulley. Replace the entire air conditioner compressor if it is stiff.
Heed the notes on removal of the version
“1”
pulley, as these also apply to version
“3”
Chapter
.
Depending on the engine version, detachment of the pulley may involve separating the air conditioner compressor from the engine
Chapter
.
The pulley is supplied as a replacement part together with the drive plate and cap under one part number. The pulley and drive plate are held together by a bolt, which is not required and can therefore be disposed of. This bolt is used at the factory to apply a pre-determined quantity of a specific grease to the thread of the drive plate. This quantity of grease is sufficient for once-only screwing of the drive plate onto the compressor shaft (following unscrewing, drive plates are therefore not to be re-used)
Electronic parts catalogue
.
Detaching pulley from air conditioner compressor/re-attaching
Chapter
.
Sealing cap
Drive plate
Replace
Bolted to the drive shaft of the air conditioner compressor, clean the thread of the compressor shaft before screwing on the drive plate.
Note
The thread of the new drive plate is pre-greased at the factory with a pre-determined quantity of a specific grease.
Different versions
Electronic parts catalogue
With overload safeguard; tripped in the event of excessive torque (e.g. stiff air conditioner compressor) and the pulley just free-wheels without driving the air conditioner compressor.
With rubber elements for decoupling the pulley from the air conditioner compressor drive shaft and for damping vibration and noise.
On installation, moisten the rubber elements slightly with tyre assembly paste or soap solution for example to provide lubrication.
Detaching/attaching
Chapter
Tightening torque 30 Nm
Circlip
Replace
Ensure correct positioning (flat side facing air conditioner compressor)
Removing and installing
Chapter
Pulley
The pulley is made of plastic, is sensitive to impact and should therefore be treated with extreme care.
Different versions (depending for example on type of engine)
Electronic parts catalogue
Detaching/attaching
Chapter
Air conditioner compressor
Different models may be fitted depending on the engine version and country version of the vehicle
Electronic parts catalogue
.
Clean the air conditioner compressor flange before fitting the pulley.
Clean the thread of the compressor shaft before screwing on the drive plate and coat the thread with a small quantity of grease.