Polo Mk3
| Climatronic - engine compartment |
Note| Parts marked “*” can be repaired only in workshops with suitable equipment and specially trained mechanics because the refrigerant must be evacuated beforehand using, for example, the air conditioning service station -VAS 6007A-. |
| 1 - | Refrigerant hose* |
| q | From expansion valve to air conditioner compressor. |
| q | With damper. |
| 2 - | Refrigerant line* |
| 3 - | Refrigerant hose* |
| q | From expansion valve to receiver with dryer bag. |
| 4 - | Evacuating and charging valve* |
| q | Releasing refrigerant into the environment is a punishable offence. |
| 5 - | Expansion valve* |
| 6 - | Dust and pollen filter |
| q | With active charcoal filter. |
| q | Removing and installing → Chapter. |
| 7 - | Water drain valve |
| q | Checking → Chapter. |
| 8 - | Quick release coupling |
| q | Removing and installing → Chapter. |
| q | Not present with all types of engines. |
| 9 - | Coolant temperature sender -G62- |
| q | Coolant temperature sender -G62- switches off air conditioning system magnetic coupling -N25- when the coolant temperature is too high (off at 119°, on at 112°). |
| q | Removing and installing → Chapter. |
| 10 - | Radiator fan control unit -J293- |
| 11 - | Ambient temperature sensor -G17- |
| q | Function: temperature sensor controls temperature flap and fresh air blower, depending on temperature. |
| q | Emergency operation during failure:fresh air intake duct temperature sensor -G89- takes over the function. If both sensors are defective, operation continues with an assumed value of +10° C. Air recirculation is not possible. The control and display unit for Climatronic air conditioning system -E87- displays “--”. |
| q | Removing → Chapter. |
| 12 - | Receiver with dryer bag* |
| q | Functions → Chapter. |
| 13 - | High-pressure safety valve* |
| q | Checking → Chapter. |
| 14 - | Refrigerant hose* |
| q | From air conditioner compressor to condenser. |
| 15 - | Air conditioner compressor* |
| q | Manufacturer: Sanden, designation: SD6-V12 |
| 16 - | High pressure sender -G65- |
| q | Removing → Chapter. |
| q | Torque setting: 8 Nm |
| q | Renew O-ring (note part number). |
| q | The high pressure sender -G65- can be removed without extracting the refrigerant from the refrigerant circuit. |
| q | The high pressure sensor -G65- supplies information to radiator fan control unit -J293- and engine control unit. |
| Function: |
| q | Switches radiator fan -V7- to next higher speed when pressure increases in refrigerant circuit. |
| q | The high pressure sender -G65- cannot be checked via the Climatronic self-diagnosis, but only via the engine control unit self-diagnosis. |
| q | Check high pressure sender -G65- → Chapter. |
| q | Switches off the air conditioner when the pressure is high (for example, insufficient engine cooling). |
| q | Switches off the air conditioner when the pressure is too low (for example, loss of refrigerant). |
| 17 - | Air conditioning system magnetic coupling -N25- |
| q | Repairing → Chapter. |
| 18 - | Condenser* |
| 19 - | Damper* |
| q | In refrigerant hose from expansion valve to air conditioner compressor. |
