1. - Poly-V belt
   • Removal and installation
   • Mark the direction of rotation and ensure that do not reverse it when installing
2. - Bracket for ancillary mechanical units
   • Removal and installation
3. - O-ring
   • Moisten with refrigeration oil before fitting
4. - Bolt.
   • Tightening torque
5. - Refrigerant line, high-pressure side
6. - Refrigerant line, low-pressure side
7. - Bolt.
   • Tightening torque
8. - O-ring
   • Moisten with refrigeration oil before fitting
9. - Air conditioner compressor regulating valve - N280-
10. - Air conditioning compressor
    • Detaching and attaching refrigerant pipe
    • Removing and installing air conditioning compressor from and to bracket
    • Removing and fitting
11. - Bolt.
    • 3 off
    • 25 Nm
12. - Pulley with overload safeguard
    • Assembly overview
13. - Dowel sleeves
    • 2 off

Assembly overview - belt pulley

Pulley: Assembly overview, air conditioner compressor, Denso

1. - Bolt.
   • 3 off
   • 4.5 Nm
2. - Cap
3. - Nut
   • 25 Nm
4. - 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

5. - Circlip
   • Renewing.
   • Ensure correct positioning - flat side facing air conditioner compressor
6. - Pulley
   • Removing and fitting
7. - 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

1. - 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.

2. - 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.
3. - 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
4. - Circlip
   • Install in correct position; insertion bevel -A- facing away from air conditioner compressor (flat side shows towards compressor)
5. - 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-) .

6. - Air conditioning compressor
   • Clean the air conditioner compressor drive shaft before fitting the pulley.