Seat Leon >> Assembly overview - drive unit of air conditioner compressor
- - Poly-V belt
- Removal and installation
- Mark the direction of rotation and ensure that do not reverse it when installing
- - Bracket for ancillary mechanical
units
- Removal and installation
- - O-ring
- Moisten with refrigeration oil before fitting
- - Bolt.
- Tightening torque
- - Refrigerant line, high-pressure side
- - Refrigerant line, low-pressure side
- - Bolt.
- Tightening torque
- - O-ring
- Moisten with refrigeration oil before fitting
- - Air conditioner compressor regulating valve - N280-
- - Air conditioning compressor
- Detaching and attaching refrigerant pipe
- Removing and installing air conditioning compressor from and to bracket
- Removing and fitting
- - Bolt.
- 3 off
- 25 Nm
- - Pulley with overload safeguard
- Assembly overview
- - Dowel sleeves
- 2 off
Assembly overview - belt pulley
Pulley: Assembly overview, air conditioner compressor, Denso
- - Bolt.
- 3 off
- 4.5 Nm
- - Cap
- - Nut
- 25 Nm
- - Drive plate
- With overload protection
device; triggered if
torque is too great (e.g.
if air conditioner compressor cannot rotate freely) causing pulley to free-wheel without driving air conditioner compressor
- With overload protection
device; triggered if
torque is too great (e.g.
- - Circlip
- Renewing.
- Ensure correct positioning - flat side facing air conditioner compressor
- - Pulley
- Removing and fitting
- - Air conditioning compressor
- The drive shaft for the air conditioner compressor must be cleaned before installing the pulley
Pulley: Assembly overview, air conditioner compressor, Sanden
- - Nut
- 25 Nm
Note A plastic cap is additionally fitted to protect the thread of the air conditioner compressor drive shaft (this cap is not shown in the illustration).
- To unfasten and tighten the hexagon nut, hold the pulley in position with a commercially available oil filter strap wrench.
- Use a thread cutter for example to remove the locking fluid applied to the thread of the nut on screwing in. Otherwise there is a danger of the drive shaft shearing off on next removal.
- Use a wire brush to clean the thread of the air conditioner compressor drive shaft.
- Apply locking fluid when fitting the nut. Locking fluid.
- - Bolt.
- 12 Nm
- To unfasten and tighten the bolts, hold the pulley in position with a commercially available oil filter strap wrench.
- Threaded holes which take self-locking bolts or bolts coated with locking fluid must be cleaned (using a tap or similar). Otherwise there is a danger of the bolts shearing off the next time they are removed.
- Clean thread of bolts from remnants of locking fluid using wire brush. Then apply locking fluid and fit bolts. Locking fluid.
- - Drive plate
- With overload safeguard (attachment of spring elements); 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
- The spring elements of the drive plate dampen vibrations and reduce noise
- - Circlip
- Install in correct position; insertion bevel -A- facing away from air conditioner compressor (flat side shows towards compressor)
- - Pulley
- With rubber elements -B- and threaded plates -C- for isolating the pulley from the air conditioner compressor drive shaft, dampening vibrations and reducing noise.
Note
- Depending on the version, the threaded plates may also be linked by way of a ring.
- "Cold country" vehicles (e.g.
central and northern Europe)
may be fitted with air conditioner
compressors with a smaller capacity.
On these air conditioner compressors, the pulley is slightly different to the version shown here (e.g. no rubber elements -B-) .
- - Air conditioning compressor
- Clean the air conditioner compressor drive shaft before fitting the pulley.
Detaching and attaching air conditioner compressor at bracket
Special tools and workshop equipment required Engine bung set - VAS 6122- Removal: Vehicles with TDI engine: Open the clamps -1- and -2-and disconnect air intake hose. Seal open lines ...See also:
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