Skoda Octavia IV 2020 Workshop Manual
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Skoda Octavia IV 2020 Workshop Manual

Skoda Octavia IV 2020 Workshop Manual

Auxiliary heating
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Service
Workshop Manual
Octavia IV 2020 ➤
Octavia IV 2021 ➤
Auxiliary heating
Edition 10.2020
Service Department. Technical Information
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted
unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by ŠKODA AUTO A. S.

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Summary of Contents for Skoda Octavia IV 2020

  • Page 1 Service Workshop Manual Octavia IV 2020 ➤ Octavia IV 2021 ➤ Auxiliary heating Edition 10.2020 Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability with respect to the correctness of information in this document.
  • Page 2 Service List of Workshop Manual Repair Groups R e p a i r G r o u p 00 - Technical data 82 - Auxiliary heating Technical information should always be available to the foremen and mechanics, because their careful and constant adherence to the instructions is essential to ensure vehicle road-worthiness and safety.

  • Page 3: Table Of Contents

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Contents 00 - Technical data ........... .
  • Page 4 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted unless authorised by ŠKODA AUTO A. S. ŠKODA AUTO A. S. does not guarantee or accept any liability with respect to the correctness of information in this document.

  • Page 5: Technical Data

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 00 – Technical data Safety instructions (SRL001666; Edition 10.2020) ⇒ m1.1 easures when working on vehicles fitted with auxiliary heating.”, page 1 ⇒ p1.2 recautions when working on vehicles with start-stop sys‐...

  • Page 6: Safety Precautions When Working On Vehicles With Start-Stop System

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 WARNING The cooling system is under pressure, the coolant tempera‐ ture can be over 100 °C when the engine is warm - risk of burning! Before repairs, reduce pressure and temperature if necessa‐...

  • Page 7: Safety Precautions When Working On Cooling System

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Safety precautions when working on cooling system Risk of scalding from hot coolant When the engine is warm, the cooling system is under over‐ pressure. Danger of scalding due to hot steam and hot coolant.

  • Page 8: General Information

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 General information ⇒ r2.1 ules when working on the parking/auxiliary heater and fuel system”, page 4 ⇒ p2.2 lates”, page 4 ⇒ w2.3 hen operating the auxiliary heating on vehicles with diesel engine.”, page 5...

  • Page 9: Notes When Operating The Auxiliary Heating On Vehicles With Diesel Engine

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Type plate at lock carrier Notes when operating the auxiliary heating on vehicles with diesel engine. If PME or RME fuel (methyl ester of plants or rapeseed) is refueled during the cold season, it may cause malfunctions of the auxiliary heating.

  • Page 10: Repair Instructions

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Repair instructions ⇒ r3.1 epair instructions”, page 6 ⇒ r3.2 outing and securing”, page 6 General repair instructions ♦ The auxiliary heating is available in different versions; there‐...
  • Page 11 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 come warm and they must be protected against heat. If it heats up, the operation of the auxiliary heating could be impaired. Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted unless authorised by ŠKODA AUTO A.

  • Page 12: Auxiliary Heating

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 82 – Auxiliary heating Fitting location overview - auxiliary heating ⇒ l1.1 ocation overview - components outside of passenger compartment”, page 8 ⇒ l2.1 ocation overview - auxiliary heating”, page 10 Fitting location overview - components outside of passenger compartment Protected by copyright.
  • Page 13 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 1 - Auxiliary heating radio controlled receiver -R64- ❑ Removing and instal‐ ling ⇒ a6.2 nd in‐ stalling radio receiver for auxiliary water hea‐ tingR149”, page 37 2 - Roof aerial for signal re‐...

  • Page 14: Auxiliary Heating

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Auxiliary heating ⇒ l2.1 ocation overview - auxiliary heating”, page 10 ⇒ o2.2 f components - auxiliary heating, interior”, page 12 ⇒ a2.3 nd installing auxiliary heating”, page 14 ⇒...
  • Page 15 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 1 - Auxiliary heating with auxiliary heating control unit -J364- ❑ Removing and instal‐ ling ⇒ a2.3 nd installing auxiliary heating”, page 2 - Nut ❑ 20 Nm...

  • Page 16: Summary Of Components - Auxiliary Heating, Interior

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 1 - Auxiliary heating with auxiliary heating control unit -J364- ❑ Removing and instal‐ ling ⇒ a2.3 nd installing auxiliary heating”, page 2 - Hose clamp 3 - Coolant hose 4 - Air intake silencer ❑...
  • Page 17 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 1 - Bolts ❑ 7 Nm 2 - Heat exchanger 3 - Seal ❑ replace after each re‐ moval ❑ Check fitting position 4 - Combustion pipe 5 - Glow plug with flame mon‐...

  • Page 18: Removing And Installing Auxiliary Heating

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 ❑ Removing and installing ⇒ a2.13 nd installing cover for auxiliary heating”, page 24 11 - Coolant hose supports ❑ Mark the fitting position before loosening 12 - Sealing rings ❑...
  • Page 19 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 WARNING The cooling system is under pressure, the coolant tempera‐ ture can be over 100 °C when the engine is warm - risk of burning! Before repairs, reduce pressure and temperature if necessa‐...
  • Page 20 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Release the nuts -2- and remove the auxiliary heating from the frame side rail. Caution Stress can occur on the plugs and the auxiliary heating con‐...

  • Page 21: Disassembling And Assembling Auxiliary Heating

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Only loosen the hose clamp -2- when coolant begins to flow out. – Close hose clamp -2- again. – Only when coolant begins to flow out the hose -4-, loosen the hose clamp -1-.

  • Page 22: Removing And Installing Air Intake Silencer

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Loosen the cable -2- from the cable terminal. – Release the screws -arrows- (7 Nm) and detach the heat exchanger from the blower housing in an axial direction of the screwed connection.

  • Page 23: Removing And Installing Circulating Pump V55

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Removing and installing circulating pump -V55- Removing Special tools and workshop equipment required ♦ Hose clamps -MP7-602 (3094)- WARNING The cooling system is under pressure, the coolant tempera‐...

  • Page 24: Removing And Installing Silencer With Bracket

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Further installation is carried out in reverse order. – If more air has entered the coolant system during the as‐ sembly, the refrigerant circuit must be ventilated ⇒...

  • Page 25: Removing And Installing The Cover

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Unscrew the screws -2- (8 Nm) and remove the bracket -1-. Installing Installation is carried out in the reverse order. Removing and installing the cover Removing –...

  • Page 26: Removing And Installing The Temperature Sensor G18 And The Overheating Sensor G189

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Remove retaining bracket -2-. – Remove glow plug with flame monitoring -Q8- Pos. -3-. Installing Installation is carried out in the reverse order. When installing, observe the following:...

  • Page 27: Disassembling And Assembling The Burner Unit

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Pull out temperature sensor -G18- -3- and overheating sen‐ sor -G189- -4- using a set of pointed pliers. Installing Installation is carried out in the reverse order. When installing, observe the following: –...

  • Page 28: Removing And Installing Cover For Auxiliary Heating

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Pull the grommet -3- out of the blower housing by applying slight pressure on the fuel pipe -4- and while doing so lift the burner unit in vertical direction upwards.
  • Page 29 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Check sealing surfaces for contamination or damage. – Moisten sealing rings with coolant before installing. Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not permitted unless authorised by ŠKODA AUTO A.

  • Page 30: Refrigerant Circuit With Auxiliary Heating

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Refrigerant circuit with auxiliary heating ⇒ d3.1 iagram - coolant hoses”, page 26 ⇒ t3.2 he refrigerant circuit of the auxiliary heating”, page 27 Connection diagram - coolant hoses...

  • Page 31: Ventilating The Refrigerant Circuit Of The Auxiliary Heating

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Ventilating the refrigerant circuit of the auxiliary heating Note The procedure for the removal and installation of the auxili‐ ♦ ary heating and the circulating pump -V55- is described in this workshop manual in such a way that only little air enters or remains in the refrigerant circuit.

  • Page 32: Fuel Supply

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Fuel Supply ⇒ l4.1 ocation overview - fuel supply”, page 28 ⇒ f4.2 uel flow rate”, page 29 ⇒ a4.3 nd installing the dosing pumpV54”, page 31 ⇒...

  • Page 33: Check Fuel Flow Rate

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 1 - Fuel delivery unit with con‐ nection for fuel removal of the auxiliary heating and the fuel gauge sensor -G- ❑ removing and installing: ♦ ⇒ Fuel system for petrol engines;...
  • Page 34 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 • Coolant temperature below 30 °C • Fuel lines are not damaged or leaking • Fuel tank is filled adequately (fuel gauge in the dash panel insert is not at the red level)

  • Page 35: Removing And Installing The Dosing Pump V54

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Removing and installing the dosing pump -V54- Removing Note Observe safety measures ⇒ m1.1 easures when working on vehicles fitted with auxiliary heating.”, page 1 and rules for cleanliness ⇒...
  • Page 36 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Note When replacing, pay attention to the correct type of dosing ♦ pump -V54- (different versions) (see ⇒ Electronic Catalogue of Original Parts “ETKA”). Transport caps must be removed before installing.

  • Page 37: Bleeding Fuel Line To Dosing Pump V54

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Turn the dosing pump -6- so that the plug -2- does not rest flush against the bracket -1-. Caution Fuel lines which rest flush against the body, can transmit noise.
  • Page 38 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Hold a container under the open connection point. – Activate the dosing pump -V54- for 30 seconds, e.g. using the “Fill line” function of the “Basic setting” for auxiliary heat‐...

  • Page 39: Control Of Auxiliary Heating

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Control of auxiliary heating ⇒ o5.1 f the function”, page 35 ⇒ h5.2 eating mode”, page 36 Description of the function Other information and further description of function: ♦...

  • Page 40: Auxiliary Heating Mode

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 The combustion air blower -V6- and the glow plug with flame monitoring -Q8- continue to operate within a limited period of time, in order to completely burn the remaining fuel in the sys‐...

  • Page 41: Other Control Components

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Other control components ⇒ a6.1 nd installing ambient temperature sensor”, page 37 ⇒ a6.2 nd installing radio receiver for auxiliary water hea‐ tingR149”, page 37 ⇒ o6.3 f the function of the auxiliary heating remote control”, page 38 Removing and installing ambient tem‐...

  • Page 42: Description Of The Function Of The Auxiliary Heating Remote Control

    Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 – Press the latch clip -3- and push the radio receiver out of the holder -arrow-. – Installation is carried out in the reverse order. When instal‐...
  • Page 43 Octavia IV 2020 ➤, Octavia IV 2021 ➤ Auxiliary heating - Edition 10.2020 Replacing the battery of the radio remote control Note Observe the fitting position of the battery (see symbol “+” on ♦ the cover -1-). Only use a battery of the same type with a voltage of 3 V.

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