Volkswagen Polo Service & Repair Manual: A/C without Magnetic Clutch with Torsion-Elastic Clutch

Volkswagen Polo Service & Repair Manual / Refrrigerant R134a Servicing / Refrigerant Circuit General Information / Refrigerant Circuit Components / A/C without Magnetic Clutch with Torsion-Elastic Clutch

Caution

Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the system.

Only use tools and materials approved by the manufacturer.

The warranty is voided if non-approved tools or materials are used.

All components of the refrigerant circuit submitted for quality observation are always to be sealed (use original sealing caps of original part).

Replace damaged or leaking components of refrigerant circuit. Refer to → Chapter „Components, Replacing“.

To date, the original parts (compressor, reservoir, receiver/dryer, evaporator and condenser) have been filled with nitrogen gas. This charge is being gradually discontinued. There is little or no pressure equalization when removing the sealing plugs from the original part.

The A/C compressor is driven directly by the power steering vane pump.

On the A/C compressor driveshaft, there is an overload protection that shears off when the compressor is blocked so that the power steering vane pump remains functional.

The A/C compressor extracts the refrigerant gas from the evaporator, compresses it and relays it to the condenser.

Note

The A/C compressor contains refrigerant oil, which can be mixed with refrigerant R134a under any temperature.

The type plate lists the type of refrigerant required for the A/C compressor. A regulator valve regulates pressure within the specified range (control characteristics) on the low pressure side.

On this A/C compressor, the control valve is activated from outside.

The engine should only be started if the refrigerant circuit is completely assembled. Refer to → Chapter „Refrigerant Circuit, General Precautions“.

The A/C compressor is equipped with a protected oil supply, this prevents A/C compressor damage in the event that the system is empty. This means that approximately 40 to 50 cm³ of refrigerant oil remains in the A/C compressor.

A/C without Magnetic Clutch with Torsion-Elastic Clutch

A/C Compressor without Magnetic Clutch

Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the sys ...

Electrically-Driven A/C Compressor for High Voltage System

Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the sys ...

Other materials:

Evaporator Vent Temperature Sensor -G263- or Evaporator Temperature Sensor -G308
Function: The Evaporator Vent Temperature Sensor -G263- or Evaporator Temperature Sensor -G308- determines the temperature behind the evaporator. This value goes to the air conditioning control module and serves as a reference signal for ...

Locking and unlocking the vehicle from the outside
Fig. 23 Buttons on the vehicle key Fig. 24 Mechanical vehicle key First read and observe the introductory information and safety warnings Function Buttons to be used in the vehicle key Action to be followed with key in the lock cylinder or Unlockin ...

Corrective Action When Vehicle Pulls to One Side
Test Conditions Before and During the Road Test – Check all suspension components on front and rear axle for damage. – Check tire pressure and correct if necessary. – ...