Škoda Octavia III Heating & Air Conditioning Workshop Manual

This factory workshop manual provides full technical documentation for the heating and air conditioning systems used on Škoda Octavia III model years 2013 and 2014. It follows official Škoda repair group structure and is intended for professional diagnostics, service, and repair operations.

The manual covers heater systems, auxiliary heating, and air conditioning systems using refrigerant R134a, including system layout, safety procedures, component identification, and detailed removal and installation instructions. Both manual air conditioning and Climatronic automatic climate control systems are fully documented.

Detailed sections describe air distribution, ventilation ducts, heater units, evaporator housing, heater heat exchangers, fresh air blowers, and dust and pollen filters. Control motors for air flaps, temperature regulation, and air distribution are documented with exact installation procedures.

The manual also includes comprehensive coverage of auxiliary heating systems, including fuel supply, dosing pumps, control units, glow plugs, sensors, exhaust routing, and coolant connections. Electrical components, self-diagnosis capabilities, and safety rules are emphasized throughout.

All procedures are supported by OEM diagrams, torque specifications, safety warnings, and cleanliness requirements to ensure correct servicing and vehicle reliability.

Technical Highlights

• Heating system component overview

• Manual air conditioning system

• Climatronic automatic climate control

• Refrigerant R134a specifications and handling

• Heater unit and evaporator housing

• Air distribution ducts and vents

• Fresh air blower and control units

• Auxiliary heating system (diesel)

• Sensors, flap motors, and control electronics

• OEM safety instructions and diagnostics

Delivery

Full Contents

• Heating

  • Assembly overview of components

  • Summary of components – interior

  • Assembly overview of components – heater unit

  • Overview of the heater controls J65

  • Determine the manufacturer of the heater unit

• Supplementary heating

  • General instructions, safety precautions, rules for cleanliness

  • General notes when working on vehicles fitted with auxiliary heating

  • Safety measures when working on vehicles fitted with auxiliary heating

  • Notes when operating the auxiliary heating on vehicles with diesel engine

  • Rules of cleanliness when working on the auxiliary heating and the fuel system

  • Starting conditions of the auxiliary heating

  • Type plate of auxiliary heating

  • Description of the function, control of auxiliary heating as well as the radio remote control

  • Description of the function and control of auxiliary heating

  • Descriptions of the functions of the radio control Telestart T91

  • Removing and installing radio receiver for auxiliary water heating R149

  • Replacing the battery of the radio remote control

  • Auxiliary heating – Overview of the fitting position

  • Summary of components – auxiliary heating

  • Assembly overview of fitting positions of auxiliary heating components

  • Removing and installing ambient temperature sensor G17

  • Removing and installing auxiliary heating of the vehicle

  • Removing and installing auxiliary heating

  • Component parts of the auxiliary heating

  • Component parts of the auxiliary heating – Summary of components

  • Removing and installing exhaust system

  • Removing and installing holder for auxiliary heating

  • Removing and installing air intake silencer

  • Removing and installing circulating pump V55

  • Disassembling and assembling auxiliary heating

  • Summary of components – disassembled auxiliary heating

  • Removing and installing cover for auxiliary heating control unit J364

  • Removing and installing cover for auxiliary heating

  • Disassembling and assembling auxiliary heating

  • Disassembling and assembling the burner unit

  • Plug assignment at the auxiliary heating control unit J364

  • Removing and installing, checking the temperature sensor G18 and the overheating sensor G189

  • Removing, installing and checking glow plug with flame monitoring Q8

  • Refrigerant circuit of auxiliary heating

  • Connection diagram – coolant hoses

  • Ventilating the refrigerant circuit of the auxiliary heating

  • Fuel supply of auxiliary heating

  • Fuel system module of auxiliary heating

  • Summary of components – dosing pump V54 with component parts

  • Removing and installing the dosing pump V54

  • Check fuel flow rate

• Air conditioning system

  • Instructions and safety measures for repair work on vehicles with air conditioning and when using refrigerant R134a

  • Determining the manufacturer for the assemblies of the heating and air conditioning unit

  • Notes regarding the odours coming from the heating and air conditioning unit

  • Extractor, filler and measurement valves for quick couplings of the AC service station on the refrigerant circuit

  • Refrigerant R134a

  • Refrigerant oil

  • Summary of components, separate lines of the air conditioning system – engine compartment

  • Removing and installing parts of the air conditioning system – engine compartment

  • Removing and installing, inspecting high pressure sender G65

  • Removing and installing dessicator cartridge

  • Reasons for replacing the dessicator cartridge

  • AC compressor

  • Reasons for rinsing the refrigerant circuit

  • Removing and installing the expansion valve

  • Removing and installing the refrigerant lines with inner heat exchanger

  • Removing and installing the condenser

  • Electrical manually operated air conditioning system

  • Summary of components – interior

  • Assembly overview of components – heating and air conditioning unit

  • Overview control for air conditioning system with control unit for air conditioning system J301

  • Removing and installing air conditioning system control with control unit for air conditioning system J301

  • Climatronic – Air conditioner with automatic regulation

  • Summary of components – interior

  • Assembly overview of components – heating and air conditioning unit

  • Overview control for air conditioning system with control unit for Climatronic J255

  • Removing and installing air conditioning system control with control unit for Climatronic J255

  • Vents and air guide ducts, exhaust ventilation for passenger compartment

  • Removing and installing centre vent

  • Removing and installing the right/left side vent

  • Removing and installing rear centre vent

  • Removing and installing the rear duct of the right and left footwell

  • Removing and installing front duct under centre console

  • Removing and installing footwell vent

  • Removing and installing intermediate piece for the air guide to the defrost vent and to the centre vents

  • Removing and installing the exhaust ventilation for passenger compartment, check

  • Removing and installing air intake grid

  • Removing and installing heater and air conditioning unit

  • Removing and installing the heating and air conditioning unit from the vehicle

  • Removing and installing bracket for heating and air conditioning unit

  • Components at the heating and air conditioning unit

  • Removing and installing fresh air blower V2

  • Removing and installing fresh air blower control unit J126

  • Removing and installing dust pollen filter

  • Removing and installing heat exchanger

  • Removing and installing heating element for additional air heating Z35

  • Checking heating element for additional air heating Z35

  • Removing and installing air intake shaft

  • Assembly overview – evaporator housing

  • Removing and installing evaporator

  • Removing and installing, testing condensation water drain

  • Removing and installing the control motors

  • Removing and installing the control motor of the re-circulating air flap V113

  • Removing and installing temperature flap control motor V68 or left temperature flap control motor V158

  • Removing and installing right temperature flap control motor V159

  • Removing and installing the control motor for fresh air and re-circulating air/air flow flap V425

  • Removing and installing the air distribution flap control motor V428 or V426

  • Removing and installing the defroster flap control motor V107

  • Other control components for the air conditioning system

  • Removing and installing the left vent temperature sender G150 on the driver’s side

  • Removing and installing the right vent temperature sender G151 on the front passenger side

  • Removing and installing the evaporator vent temperature sender G263

  • Removing and installing the footwell vent temperature sender G192

  • Removing sunlight penetration photosensor G107

  • Removing and installing the ambient humidity sensor for air conditioning system G260

  • Air quality sensor G238