1996-2004 Skoda Octavia Service & Repair Manual

Service Workshop Manual OCTAVIA Service Department. Technical Information S00.5102.50.20 Edition 08.96 Heating, Air Conditioning

Service List of Supplements to OCTAVIA Workshop Manual Edition: 03.01 Heating and Air Conditioning Replaces List of Supplements - Edition: 07.99 Supple- Edition Subject Article Number ment 08.96 Basic Edition of Workshop Manual S00.5102.50.20 1 08.98 Climatronic - Air Conditioning S00.5102.51.20 with Automatic Control 2 01.99 High-pressure Sender for Air Conditioning -G65- S00.5102.52.20 3 07.99 Modifications for Model Year 00 S00.5102.53.20 4 03.01 Modifications for Model Year 01 S00.5102.54.20 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Contents ⇒ next page. The Service Manual is intended only for use within the koda Organisation; it is not permitted to pass it onto third persons. © 2001 KODA AUTO a. s. Printed in CR S00.5102.54.20

Edition 03.01 S00.5102.54.20 ------------ I ------------ OCTAVIA Service Contents 80 Heating System Page Servicing heating system ........................................................................................................... 80-1 - Dash panel vents and air ducts ................................................................................................ 80-1 - Removing and installing right dash panel vent ...................................................................... 80-3 - Removing and installing centre and left dash panel vents .................................................. 80-3 - Inspecting ventilation frame ...................................................................................................... 80-3 - Removing and installing air duct to defroster vents ................................................................. 80-4 - Heating system, heater controls and air ducts ......................................................................... 80-5 - Removing and installing heater controls .................................................................................. 80-7 - Detaching and attaching Bowden cables of heater controls .................................................... 80-7 - Connection diagram for Bowden cables at heater controls ...................................................... 80-8 - Connection diagram for Bowden cables at heater ................................................................... 80-8 - Detaching, attaching and adjusting Bowden cables at heater .................................................. 80-8 - Replacing bulb of heater controls ............................................................................................. 80-10 - Removing and installing fresh air blower -V2 ........................................................................... 80-11 - Removing and installing series resistor for fresh air blower -N24 ............................................ 80-11 - Removing and installing positioning motor for fresh air and recirculated air flap -V154 .......... 80-12 - Testing operation of positioning motor for fresh air and recirculated air flap -V154 and of switch -E159 ......................................................................................................................... 80-13 - Removing and installing footwell vents .................................................................................... 80-15 - Removing and installing dust and pollen filter .......................................................................... 80-16 - Removing and installing coolant shutoff valve ......................................................................... 80-16.1 - Two-way valve for coolant shutoff valve -N147 ........................................................................ 80-16.1 Removing and installing heater unit ......................................................................................... 80-17 - Removing and installing heat exchanger of heating system .................................................... 80-19 87 Air Conditioning Page Safety precautions when working on models with air conditioning and when handling refrigerant R 134a ........................................................................................................................ 87-1 Description of air conditioning, test and service work ........................................................... 87-4 - Operating principle of air conditioning system .......................................................................... 87-4 - Design of refrigerant circuit ...................................................................................................... 87-5 - Parts of refrigerant circuit ......................................................................................................... 87-7 - Connections for quick-coupling adapters at refrigerant circuit ................................................. 87-9 - Parts for safeguarding refrigerant circuit .................................................................................. 87-10 - Switches for refrigerant circuit .................................................................................................. 87-11 - Properties of refrigerant R 134a ............................................................................................... 87-12 - Properties of refrigerant oil ....................................................................................................... 87-14 - Important information regarding work on refrigerant circuit ..................................................... 87-15 - Detecting leaks at refrigerant circuit with leak detector ............................................................ 87-16 - Service stations for draining, evacuating, filling and measuring pressure of refrigerant circuit ........................................................................................................................................ 87-16 - Cleaning refrigerant circuit with compressed air and nitrogen ................................................. 87-18 - Capacities ................................................................................................................................. 87-20 Continued ⇒ next page

Service OCTAVIA Edition 03.01 S00.5102.54.20 ------------ II ------------ Servicing air conditioning and heating - engine compartment (manual control) ................. 87-21 - .................................................................................... 4 - - ............................................................................ - ................................................... - .................................................. - ................................................................................ - ................................................. - ............................................................................. - ...................................................................... - ......................................................... - ....................................................................................... - ............................................................................................. - ......................................................................................... 1 Servicing magnetic clutch -N25- (manual control and Climatronic) ...................................... 87-32 Servicing air conditioning and heating - passenger compartment (manual control) .......... 87-36 Removing and installing air conditioner (manual control) ..................................................... 87-38 - ...................................................... Disassembling and assembling air conditioner (manual control) ......................................... 87-42 Disassembling and assembling evaporator housing (manual control) ................................. 87-44 Climatronic (air conditioning with automatic control) - self-diagnosis ................................. 87-47 - .................................................................................................................................... - ............................................................................................... - ........................................................................................ - . 1552 ............. - ......................................................................................................... - ....................................................................................................... - ................................................................................................................................. - .............................................................................................................. - ............................................................................................................................. - ............................................................................................................... - ........................................................................................................................... - ................................................................................................................... - ................................................................................................ Climatronic - air conditioning with automatic control ............................................................. 87-70 - ......................................................... - - ..................................................................................... - ................................................................................................................................ - ......................................................... - .................................................................................... - ............................................................................................. - ......................................................................... - ................................................................ - ...........................................................................................

OCTAVIA Edition 08.96 S00.5102.50.20 ------------ 80-1 ------------ Heating System 80 Servicing heating system Dash panel vents and air guide ducts Note: The air in the passenger compartment flows out of the car through 2 ventilation frames (in the right of the luggage compartment in the area of the bumper) ⇒ page 80-3. 1 - Dash panel ♦ With integrated air guide ducts for defroster nozzles and dash panel vents. ♦ Removing and installing ⇒ General Body Repairs; repair group 70 2 - “Side window” defroster nozzle ♦ Clipped in place 3 - “Right” dash panel vent ♦ Removing and installing ⇒ page 80-3.

OCTAVIA 80 Heating System ------------ ------------ Edition 08.96 S00.5102.50.20 4 - “Centre right” dash panel vent ♦ Removing and installing ⇒ page 80-3. 5 - Trim panel for dash panel inserts ♦ Removing and installing ⇒ General Body Repairs; repair group 70 6 - “Left” and “centre left” dash panel vents ♦ Removing and installing ⇒ page 80-3. 7 - “Windscreen” defroster nozzle 8 - Air guide duct to dash panel vents ♦ Bolted to heating system, with catch at top. 9 - Air guide duct to defroster nozzles ♦ Removing and installing ⇒ page 80-4.

OCTAVIA Edition 08.96 S00.5102.50.20 ------------ ------------ Heating System 80 Removing and installing “right” dash panel vent - Remove glove box and right trim panel of dash panel. ⇒ General Body Repairs, repair group 70. K - Apply pressure to securing clips -arrows- by hand or with a screwdriver. Removing and installing “centre” and “left” dash panel vents - Remove trim panel for dash panel insert. ⇒ General Body Repairs; repair group 70. K - Release catches -arrows-. Note: Only the left and centre left dash panel vents are identical. Inspecting ventilation frames K - The sealing lips -B- in the ventilation frame -A- must not be blocked and must close au- tomatically. Note: ♦ This illustration shows the ventilation frames with the rear bumper installed. ♦ 2 ventilation frames (on right side only) are installed for forced ventilation. ♦ The air guides formed by the trim panel of the luggage compartment must not be co- vered over if ventilation of the passenger compartment is to operate properly.

OCTAVIA 80 Heating System ------------ ------------ Edition 08.96 S00.5102.50.20 Removing and installing air guide duct to defroster nozzles - Remove dash panel ⇒ General Body Repair; repair group 70 K - Remove air guide duct -A- by lifting up.

1996-2004 Skoda Octavia Service & Repair Manual

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