Contents Wiring diagrams Section: Automatic HVAC System All sections

Air Conditioning: Specifications Volkswagen Passat B6

Automatic HVAC System 3 illustrations ~414 words

REFRIGERANT R134A, CAPACITIES

A/C CompressorManufacturerTotal Capacity
PXE16Sanden600 + 25 gram
DSC17EZexel600 + 25 gram
6SEU14C, 7SEU16C, 7SEU17CDenso600 + 25 gram
6CVC140Delphi600 + 25 gram

REFRIGERANT OIL CAPACITIES

The special refrigerant oil (for use with refrigerant circuits R134a only) is no longer obtainable on the refrigerant/machine oil market.

Refrigerant oil can be obtained using following part number for
PXE16- SandenG 052 154 A2
DSC17E- ZexelG 052 200 A2
6SEU14C, 7SEU16C, 7SEU17C - DensoG 052 300 A2
6CVC140- DelphiG 052 154 A2 / G 052 300 A2
TypeTotal Capacity
PXE16- Sanden110 cm 3 10 cm 3
DSC17E- Zexel120 cm 3 +15 cm 3
7SEU17C- Denso140 cm 3 10 cm 3
6SEU14C- Denso90 cm 3 10 cm 3
7SEU16C- Denso180 cm 3 10 cm 3
6CVC140- Delphi110 cm 3 10 cm 3
This quantity of refrigerant oil is in a replacement compressor and equates to the total capacity.

Important Information

Refrigerant oil attracts moisture. Close any opened containers immediately after use to prevent moisture from entering.

Refrigerant oil, because of its chemical properties, must not be disposed of with engine oils or transmission oils.

Oil Distribution

The oil, which is located in the sump of the A/C compressor before initially switching on the air conditioner system, is distributed through the refrigerant circuit as follows

  1. A/C compressor approximately 50%
  2. Condenser approximately 10%
  3. Suction hose approximately 10%
  4. Evaporator approximately 20%
  5. Fluid reservoir approximately 10%

CLIMATIC AND CLIMATRONIC COMPONENTS, FASTENER TIGHTENING SPECIFICATIONS

ComponentNm
Climatic/Climatronic Heating and A/C System Controls1.5
Heating and A/C Unit to I/P Assembly Carrier
Cable Bracket Bolts4
Climatic/Climatronic Bracket Bolts9 +/- 1.3
Door Motors
Fresh Air/Recirculating Air/Back Pressure Door Motor1.4
Left temperature door motor1.4
Indirect ventilation door motor3.5
Refrigerant Line Bracket to Body, Nuts20

REFRIGERANT SYSTEM, FASTENER TIGHTENING SPECIFICATIONS

ComponentFastener SizeNm
A/C Refrigerant Line to A/C Compressor, Bolts22 +/- 1
2.0L Engine
A/C Compressor Sub-Assembly Bracket to Engine, BoltsM10 x 4540
A/C Compressor to A/C Compressor Sub-Assembly Bracket, BoltsM8 x 10025
3.6L Engine
A/C Compressor Sub-Assembly Bracket to Engine, Bolts25
A/C Compressor to A/C Compressor Sub-Assembly Bracket, BoltsM8 x 10025
Ribbed Belt Pulley, Zexel
Overload Protection to A/C Compressor, Bolt20
Overload Protection to Ribbed Belt Pulley, Bolts5
Ribbed Belt Pulley, Sanden
Overload Protection to A/C Compressor, Bolt25
Overload Protection to Ribbed Belt Pulley, Bolts4.5
Condenser to Radiator, Bolts5 +/- 0.5
Dryer Cartridge Cover, Cap1.2 +/- 0.3
Evacuating and Charging Valve Insert2 +/- 0.2
Expansion Valve Heat Shield, Bolt2.5
Expansion Valve Heat Shield, Nut4.5
Expansion Valve to Heating and A/C Unit, Bolts5
High Pressure Sensor8 +/- 1
Refrigerant Lines to Expansion Valve, Bolts10 +/- 1
Refrigerant Lines to Condenser12 +/- 1

3.6L Sub-assembly Bracket Tightening Sequence

Scheme 1

Scheme 1

Note. Bolts -1- and -2- are fitting bolts.

Tighten the bolts hand-tight in the following sequence: 1 through 5.

Tighten the bolts to 25 Nm in the following sequence: 1 through 5.

SUB-ASSEMBLY BRACKET TIGHTENING SEQUENCE

Note. Bolts -1- and -2- are fitting bolts.

Tighten the bolts hand-tight in the following sequence: 1 through 5.

Tighten the bolts to 25 Nm in the following sequence: 1 through 5.

Scheme 2

Scheme 2: RIBBED BELT ROUTING

1 - Tensioning roller

2 - Ribbed belt pulley - generator

3 - Idler rollers

4 - Ribbed belt

5 - Ribbed belt pulley - A/C compressor

6 - Ribbed belt pulley - crankshaft

7 - Ribbed belt pulley - coolant pump

Scheme 3

Scheme 3: A/C COMPRESSOR RIBBED BELT, ZEXEL
  1. A/C Compressor Zexel Clean the flange before mounting the ribbed belt pulley.
  2. Ribbed Belt Pulley Removing, refer to «Remove the Ribbed Belt Pulley»(ref-460602-S15345687032012032900000). To loosen and tighten bolt, hold ribbed belt pulley firmly in place using a standard band wrench (with webbing).
  3. Circlip Replace Install on the proper side, the side with beveled insertion edge faces away from A/C compressor (install flat side facing compressor).
  4. Overload Protection Bolted with to the ribbed belt pulley. Keeps the ribbed belt pulley from turning when the A/C compressor gets blocked. To loosen and tighten bolts, hold ribbed belt pulley firmly in place using a standard band wrench (with webbing).
  5. Hex Bolt Replace To loosen and tighten bolt, hold ribbed belt pulley firmly in place using a standard band wrench (with webbing). Clean the thread on the A/C compressor shaft of old locking compound before installing. Install the bolt with Locking compound -D 000 600 A2-. 20 Nm
  6. Hex Socket Head Bolt 5 Nm Quantity: 3