Volkswagen Polo Service & Repair Manual: Checking with Expansion Valve and Receiver/Dryer, without Regulated A/C Compressor

Checking with Expansion Valve and Receiver/Dryer, with Internally Regulated A/C Compressor

  Note Connecting service station. Refer to → Chapter „Connecting Service Station“. Observe test requirements ...

Test Requirements

Radiator and condenser are clean (clean if necessary). The ribbed belt for the A/C compressor and alternator tensioned correctly. ...

Other materials:

4-Pin Heated Oxygen Sensor (HO2S), Removing and Installing
  Note Do not repair the heated oxygen sensor wires. Repairing may result in malfunctions. Use the faulty sensor as a guide for installing all of the accompanying attachments, cable ties or marking bands. ...

Receiver/Dryer
  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 manufactu ...

Indicator lamp for the tyre monitoring system
First read and observe the introductory information and safety warnings  Lit up Possible cause   Solution The tyre pressure of one tyre or several tyres has decreased considerably in comparison to the tyre pressure set by ...