Volkswagen Polo Service & Repair Manual: Test Requirements

Volkswagen Polo Service & Repair Manual / Refrrigerant R134a Servicing / Pressures, Checking / Checking with Expansion Valve and Receiver/Dryer, without Regulated A/C Compressor / Test Requirements

Radiator and condenser are clean (clean if necessary).

The ribbed belt for the A/C compressor and alternator tensioned correctly.

All air ducts, covers and seals are OK and installed correctly.

The doors reach their end position.

The engine is warm.

Evaporator and heater not drawing in secondary air (at maximum fresh-air blower speed).

With engine running and A/C system set to maximum cooling output, pay attention to the following points:

The fresh air blower is running.

The coolant fan must be running or it must be switched on.

The recirculation/fresh air door must be in the “recirculation” position.

Ambient temperature is greater than 15 ⁰C.

The A/C Evaporator Temperature Switch -E33- is installed correctly and its switch temperatures are correct.

Checking with Expansion Valve and Receiver/Dryer, without Regulated A/C Compressor

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Checking

– Turn off the ignition. – Connect pressure gauge battery (A/C service station). – Take pr ...

Other materials:

Indicator lamp
First read and observe the introductory information and safety warnings Lit up Possible cause Solution There is a defective bulb in the vehicle's exterior lighting. Change the defective bulb. Several warning and indicat ...

A/C Service Station, Emptying
Caution If it is suspected that chemicals were added to the refrigerant circuit to seal leaks, do not connect the A/C service station and do not extract the refrigerant. ...

Wheel Bolt Versions
Shank Designs There are two shank designs: rounded and conical. The rounded shank has a curved surface -arrow A-. This design was used for original rims. The conic ...