Volkswagen Polo Service & Repair Manual: Refrrigerant R134a Servicing
- A/C System, General Information
- Introduction
- Additional Information Sources
- A/C Technology Basic Principles
- Refrigerant R134a Vapor Pressure Table
- Refrigerant R134a
- Refrigerant R134a Characteristics
- Refrigerant Oil
- Comfort
- A/C System Operation
- Safety Precautions
- A/C System and Refrigerant R134a Safety Precautions
- Refrigerant Circuit, General Precautions
- Refrigerant Circuit General Information
- Refrigerant Circuit Components
- Refrigerant Circuit Design
- Refrigerant Circuit Extraction and Filling Valves for Service Station Couplings
- Switches and Sensors on Refrigerant Circuit and Connections
- Electrical Components Not on Refrigerant Circuit
- Refrigerant Circuit Pressures and Temperatures
- Refrigerant Circuit with Expansion Valve
- Refrigerant Circuit with Restrictor and Reservoir
- Pressure Gauge, Tests and Measurements
- A/C Service and Recycling Units
- Refrigerant Circuit Repair Information
- Laws and Regulations
- Laws and Regulations
- Recycling and Disposal Regulations
- Refrigerant Circuit, Converting R12 to R134a and Servicing
- Refrigerant, Keeping Records
- Refrigerant Circuit
- A/C Service Station, Working with
- Important Information when Working with the A/C Service Station
- A/C Service Station, Connecting for Measuring and Testing
- Discharge Refrigerant Circuit with A/C Service Station
- Refrigerant Circuit with A/C Service Station, Draining
- Refrigerant Circuit with A/C Service Station, Filling
- A/C System, Operating after Charging
- Refrigerant in A/C Service station Container, Filling
- A/C Service Station, Emptying
- Refrigerant Circuit, Detecting Leaks
- Searching for Refrigerant Circuit Leaks with Compressed Air or Nitrogen
- Refrigerant Circuit, Tracing Leaks, with Electronic Leak Detector -VAG1796
- Refrigerant Circuit, Tracing Leaks, with Leak Detection System -VAS6196- or Leak Detection Kit -VAS6201A- or Succeeding Model
- Refrigerant Circuit, Removing Contaminants
- Refrigerant Circuit, Flushing with Compressed Air and Nitrogen
- Refrigerant Circuit, Flushing (Cleaning) with Refrigerant R134a
- Concerns
- Connecting Service Station
- Pressures, Checking
- Refrigerant Circuit Pressures (with A/C Service Station), Checking
- Checking with Restrictor and Reservoir, with Internally Regulated A/C Compressor
- Checking with Expansion Valve and Receiver/Dryer, with Internally Regulated A/C Compressor
- Checking with Expansion Valve and Receiver/Dryer, without Regulated A/C Compressor
- Checking with Restrictor, Reservoir and A/C Compressor Regulator Valve -N280-, Externally Regulated A/C Compressor
- Checking with Expansion Valve, Receiver/Dryer and A/C Compressor Regulator Valve -N280-, Externally Regulated A/C Compressor
- Components, Replacing
- General Information
- Leaking or Damaged Components except A/C Compressor, Reservoir or Receiver/Dryer
- A/C Compressor, Replacing
- Receiver/Dryer or Reservoir and Restrictor, Replacing
- Special Tools
Special Tools
Special tools and workshop equipment
required
Torque Wrench 1331 5-50Nm -VAG1331-
...
Other materials:
Wheel bolts
Fig. 166 Changing a wheel:
loosening the wheel bolts
Fig. 167 Changing a wheel:
anti-theft bolt and adapter
First read and observe the introductory
information and safety warnings
Only the spanner delivered with the vehicle should be used to loosen the
wheel bolts.
Only loosen the whee ...
Refrigerant Oil
Refrigerant oil mixes with the refrigerant (about 20 - 40%,
depending on compressor type and amount of refrigerant) and
circulates constantly in the system, lubricating the moving
parts.
Special synthetic refrigerant oils, for example,
...
Pedals
Fig. 108 Pedals in vehicles with a manual
gearbox: ① accelerator, ② brake pedal, ③ clutch pedal
Fig. 109 Pedals in vehicles with an automatic
gearbox: ① accelerator, ② brake pedal
First read and observe the introductory information
and safety warnings The operation and freedom ...
