Škoda Air Conditioning System R134a Workshop Manual (Service & Diagnostics)

Technical Highlights

• Refrigerant type: R134a (Tetrafluoroethane)

• Manual edition: 07.2013

• OEM Škoda workshop documentation

• Covers multiple Škoda platforms including Citigo, Fabia, Octavia, Rapid, Roomster, Superb, and Yeti

• Detailed safety instructions for handling refrigerant systems

• Physical and thermodynamic properties of R134a

• Vapor pressure tables and temperature–pressure reference data

• Professional diagnostic, service, and repair procedures

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Full Contents

• Technical Data

  • General notes on air conditioning systems

  • Important instructions

  • Further documentation and information sources

  • Principles of air conditioning technology

  • Comfort advantages of air conditioning systems

  • Operation of the air conditioning system

  • Refrigerant R134a overview

  • Vapor pressure table for R134a

  • Properties of refrigerant R134a

  • Evidence of leaks

  • Refrigerant oil

  • General occupational safety

  • Use of pressure tanks

  • Safety precautions when extracting and filling refrigerant

  • Safety measures when working on vehicles with A/C systems

• General Instructions for Refrigerant Circuit

  • Components of the refrigerant circuit

  • Extractor, filler, and measurement valves

  • Pressures and temperatures in the refrigerant circuit

  • Pressure switches and senders

  • Electrical components not installed directly in the circuit

  • Inspection and measurement using pressure gauges

  • Air conditioning service and recycling equipment

  • Repair and maintenance instructions

• Legal Texts and Regulations

  • Verification procedures for refrigerant

• Refrigerant Circuit

  • Important repair instructions for A/C systems

• Working with the A/C Service Station

  • Safety instructions for service station operation

  • Connecting service station to refrigerant circuit

  • Emptying the refrigerant circuit

  • Evacuating the refrigerant circuit

  • Filling the refrigerant circuit

  • Operating the A/C system after filling

  • Filling refrigerant into service station reservoirs

  • Draining the A/C service station

• Leak Detection

  • Leak detection using compressed air or nitrogen

  • Leak detection using electronic detectors

  • Leak detection using VAG-approved detection tools

• Removing Contaminants from the Refrigerant Circuit

  • Cleaning with compressed air and nitrogen

  • Flushing with refrigerant R134a

• Complaints and Fault Diagnosis

  • Cooling capacity temperature test

  • Possible complaints

  • Odours from heating and air conditioning unit

• Pressure Testing

  • Test requirements before pressure testing

  • Checking pressures

  • Test continuation depending on circuit configuration

  • Pressure testing with throttle and catch pan

  • Pressure testing with expansion valve and fluid reservoir

  • Pressure testing with regulating valve

• Replacing Refrigerant Circuit Components

  • Replacement when refrigerant circuit is empty

  • Replacement when refrigerant is present

  • Replacing A/C compressor

  • Replacing catch pan and throttle or fluid reservoir

• Service Installations and Tools

  • Tools and materials from importer

  • Commercially available tools and materials

  • Custom workshop tools