A/C Clutch

A/C Clutch

Special tools, testers and auxiliary items required

• Pin wench (VAS3212A) (or equivalent)

• Two arm puller

• Three arm puller

• Depth gauge

• Torque wrench (5-50 Nm) or equivalent (VAG 1331 )

• It is not necessary to discharge the refrigerant system to remove and install the A/C Clutch.

• If A/C Clutch is to be removed with compressor installed, first do the following:

• Remove ribbed belt.

• Remove intercooler (engine code ALH only).

• If A/C Clutch is to be removed with compressor removed, first discharge refrigerant system => [ A/C Refrigerant System, Discharging ] A/C Refrigerant System, Discharging.

Removing

Hex Nut





- Remove hex nut while counter-holding with 3213A or equivalent commercially available 2 hole pin wrench (with 4 mm pins).

• Tightening torque: 15 Nm

Clutch Plate





- Carefully pry off clutch plate using two large screwdrivers - A -.

Use locally available 2 or 3 arm puller if plate is securely seated (difficult to remove).

Clutch Pulley





- Remove circlip => [ A/C Clutch, Sanden Assembly Overview ] A/C Clutch, Sanden Assembly Overview, key -=> [ (Item 4) Circlip ] A/C Clutch, Sanden Assembly Overview-.

- Attach commercially available 2 arm puller - A - on shoulder - B - and pull off pulley.

Installing

Clutch Coil





- Install coil on compressor.

- Locate locking pin on coil - A - into recess - C -.

Clutch Plate Gap





• Gap: 0.4 - 0.8 mm (0.015 - 0.023 in)

Determine "Dimension 1"

- Using depth gauge - 1 -, measure gap between top of clutch plate - 3 - and clutch pulley - 2 - at three equally spaced locations (measurement must not deviate).

Determine "Dimension 2"

- If compressor is installed in vehicle, disconnect compressor electrical connector - 4 - from vehicle wiring harness.

- Using a jumper wire, energize the clutch coil by applying 12V to connector - A - (battery terminal B+). If compressor is removed from vehicle, compressor must be grounded.

- With clutch energized, measure gap between pulley - 2 - and clutch plate - 3 - with depth gauge - 1 -.

The allowable gap (0.4 - 0.8 mm / 0.015 - 0.023 in) is the difference between "Dimension 1" and "Dimension 2".

• Gap must be within tolerance around entire circumference.

• If gap is outside the permitted tolerance range, remove clutch plate and adjust gap by adding or removing shims => [ Shims ] A/C Clutch, Sanden Assembly Overview, key -=> [ (Item 3) ] A/C Clutch, Sanden Assembly Overview-.