Webasto Water Heater Installation Documentation

WARNING!

Hazard warning: Incorrect installation or repair of Webasto heating systems may cause a fire or result in the emission of carbon monoxide, which can be fatal. Serious or fatal injuries can be caused as a result.

Specialist company training, technical documentation, specialised tools and equipment are required to install and repair Webasto heating and cooling systems. Only original Webasto parts must be used. For this, also see the catalog of air and water heater accessories from Webasto.

NEVER attempt to install or repair Webasto heating or cooling systems if you have not successfully completed the company training and thereby acquired the required technical skills, or if you do not have access to the required technical documentation, tools and equipment needed to carry out correct installation and repairs.

ALWAYS follow all Webasto installation and repair instructions and observe all warnings.

The initial startup is to be executed with the Webasto Thermo Test Diagnosis.

Webasto does not accept any liability for defects and damage that are attributable to installation by untrained staff.

Document Identification Number: 1316419B_EN

Table of Contents

• Validity - Page 2
• Heater / Installation Kit - Page 3
• Foreword - Page 3
• General Instructions - Page 3
• Special Tools - Page 3
• Explanatory Notes on Document - Page 4
• Preliminary Work - Page 5
• Heater installation location - Page 5
• Electrical system - Page 6
• Fuse holder and K3 relay - Page 7
• Climatic fan controller - Page 8
• Climatronic fan controller - Page 9
• Digital timer - Page 12
• Remote option Telestart - Page 12
• Premounting heater - Page 13
• Preparing exhaust - Page 14
• Preparing coolant circuit - Page 15
• Installing heater - Page 19
• Fuel - Page 21
• 1.6 TDI coolant circuit - Page 24
• 2.0 TDI coolant circuit - Page 27
• Exhaust gas - Page 32
• Final Work - Page 33
• Operating Instructions for End Customer - Page 34

Validity

Vehicle and engine types, equipment variants and national specifications not listed in these installation instructions have not been tested. However, installation according to this installation documentation may be possible.

The installation location of a digital timer and summer/winter switch should be confirmed with the end customer before installation.

Heater / Installation Kit

Also required with Climatronic

Heater recommended for the respective vehicle class:

The selection of the heater is based on the passenger compartment size of the vehicle and the level of comfort required by the customer!

Foreword

This installation documentation applies to Skoda Octavia 1.6 and 2.0 TDI Common Rail vehicles - for validity, see page 2 - from model year 2009 and later, assuming technical modifications to the vehicle do not affect installation, any liability claims excluded. Depending on the vehicle version and equipment, modifications may be necessary during installation with respect to this installation documentation.

However, the stipulations in this "installation documentation", the "operating instructions" and the "installation instructions" for the Thermo Top C/E must always be observed.

The corresponding rules of technology and any information from the vehicle manufacturer should be observed during the installation work.

General Instructions

Installation should be carried out according to the general, standard rules of technology. Unless specified otherwise, fasten hoses, lines and wiring harnesses to original vehicle lines and wiring harnesses using cable ties.

Sharp edges should be fitted with rub protection (split-open plastic hose).

Spray unfinished body areas, e.g. drilled holes, with anti-corrosion wax (Tectyl 100K, Order No. 111329).

Special Tools

• Torque wrench for 2.0 - 10 Nm
• Hose clamping pliers

Explanatory Notes on Document

To provide you with a quick overview of the individual working steps, you will find an identification mark on the outside top right corner of the page in question.

System Areas:

• Mechanical system ⚙️
• Electrical system ⚡
• Coolant circuit ?
• Fuel ⛽
• Exhaust gas ?
• Combustion air ?️

Special features are highlighted using the following symbols:

• ⚠️ Specific risk of injury or fatal accidents.
• ⚠️ Specific risk of damage to components.
• ? Specific risk of fire or explosion.
• ℹ️ Reference to general installation instructions of Webasto components or to the manufacturer's vehicle-specific documents.
• ✨ Reference to a special technical feature.

Diagram showing vehicle component location and viewing angle.

All dimensions are in mm!

Tightening torque of hose clamps = 2.0 + 0.5 Nm!

Tightening torque of Ejot screws, Ejot studs = 10 Nm!

Preliminary Work

Warning!

• Open the fuel tank cap, ventilate the tank.
• Close the fuel tank cap again.
• Depressurise the cooling system.
• Copy the factory number from the original type label to the duplicate type label.
• Remove years that do not apply from the duplicate label.
• Attach the duplicate label (type label) in the appropriate place.
• Disconnect the battery "earth" or "ground" connection.
• Remove battery with battery carrier coupling
• Remove the engine cover.
• Detach coolant reservoir cap
• Remove the left front wheel
• Remove the front section of the left front wheel well trim
• Remove the left-hand front fog light or, on vehicles without front fog lights, the left-hand cover
• Remove the underride protection
• Remove the right-hand underbody trim
• Remove the rear bench seat
• Open the right-hand tank-fitting service lid
• Remove the footwell trim on the driver's side
• Remove the lower instrument panel trim on the driver's side
• Only vehicles with Climatronic: Remove the footwell trim on the front passenger side

Remove page 34 "Operating Instructions for End Customer" and add to the vehicle operating instructions.

Heater installation location

Image shows the general area where the heater is installed. Label '1' points to the heater unit.

Electrical system

Wiring harness routing

Route excess lengths from wiring harness of heater 1 in cable duct below battery and secure with cable ties.

Wiring harness pass through in engine compartment:

• 1 Original vehicle wiring harness pass through
• 2 Wiring harnesses for fan controller and heater control

Image shows wiring harness routing in the engine compartment.

Note: Do not install the metering pump wiring harness until later together with fuel pipe along the original vehicle fuel lines on the underbody.

Wiring harness routing diagram:

Diagram illustrating the routing of wiring harnesses.

Fuse holder, K3 relay

Description of installation for K3 relay 1 and fuse carrier 2 on Page 7.

Image shows fuse holder and K3 relay installation.

Wiring harness pass through of passenger compartment:

• 1 Original vehicle wiring harness pass through
• 2 Wiring harnesses for fan controller and heater control

Image shows wiring harness routing in the passenger compartment.

Fuse holder and K3 relay

Countersink holes 3 from behind for M5 countersunk head screws.

Components:

• 1 Cover of fuse/relay carrier in engine compartment
• 2 Cut away bar in shaded area
• 3 5.0 mm dia. hole [2x]

Image shows the fuse/relay carrier cover with labelled holes.

Installation:

• 1 M5x12 countersunk head screw [2x]

Image shows the installation of the fuse holder and K3 relay.

On vehicles with Climatronic, replace 25 A fuse F3 7 with provided 3A fuse.

Components:

• 1 M5 flanged nut
• 2 Large diameter washer (between cover and retaining plate)
• 3 Retaining plate
• 4 M5 flanged nut
• 5 K3 relay
• 6 Fuse holder

Image shows the assembled fuse holder and K3 relay components.

Route brown (br) earth wire to original vehicle earth support point below headlight and connect.

Components:

• 1 Fuse/relay carrier
• 2 Original main vehicle fuse
• 3 Red (rt) positive wire

Image shows the connection of positive and earth wires.

Climatic fan controller

Climatic wiring diagram:

Diagram showing the wiring connections for the Climatic fan controller between Webasto and Skoda components. Includes labels for components like HG (Heater TT-C/E), X1 (6-pin heater connector), F3 (25 A fuse), K3 (Fan relay), Dg (Diagnosis connection) on the Webasto side, and SC40 (40 A fan fuse), J301 (Control unit of air conditioning), N24 (Resistor group), V2 (Fan motor) on the Skoda side. Wire colours are indicated (rt, ws, sw, br, gn, ge, bl).

Note: Wiring colours may vary.

Connection on original vehicle fuse carrier (instrument panel at upper left). Detach black/blue (sw/bl) 42 wire 4 on fuse output SC40. Produce connection as shown in wiring diagram.

Connections shown in image:

• 1 Red (rt) wire of K3/87a engaged in fuse output SC40
• 2 AMP housing
• 3 Black (sw) wire to K3/30

Image shows the fan controller connections.

Climatronic fan controller

Climatronic wiring diagram:

Diagram showing the wiring connections for the Climatronic fan controller between Webasto and Skoda components. Includes labels for components like HG (Heater TT-C/E), X1 (6-pin heater connector), F3 (Replace 25 A fuse with 5A fuse), K3 (Fan relay), IPCU (Pulse width modulator) on the Webasto side, and SC22 (40 A fan-fuse), J255 (Climatronic control unit), V2 (Fan motor), J126 (Fan control unit) on the Skoda side. Wire colours are indicated (rt, ws, sw, br, gn, ge, bl).

Symbols:

• X Cutting point
• ! Insulate wire end and tie back

Note: Wiring colours may vary.

Preparing IPCU

Image shows connections for preparing the IPCU module.

• 1 Black (sw) wire to K3/30
• 3 Socket of IPCU module
• 4 Green/white (gn/ws) wire of IPCU/86
• 5 AMP connector

Insulate red (rt) wire 2 from K3/87a and tie back.

Preparing IPCU

Position of free socket dependent on vehicle equipment.

• 1 Brown (br) wire of IPCU/85
• 2 Socket for IPCU module mounted
• 3 IPCU wiring harness

Image shows the IPCU module socket and wiring harness.

Earth connection of IPCU

Components:

• 1 Original vehicle bolt
• 2 Brown (br) wire of IPCU/85

Image shows the earth connection point.

Routing wiring harness

Route wiring harness from IPCU module 2 along air duct to centre console.

• 1 Connect IPCU

Image shows the routing of the wiring harness.

Detaching fan unit

Route wiring harness from IPCU module along original vehicle wires to fan unit.

• 1 IPCU wiring harness
• 2 Fan unit

Image shows the fan unit and wiring harness.

Connection to fan unit

Disconnect fan unit.

Produce connections as shown in wiring diagram.

• 1 IPCU wiring harness
• 2 Black/white (sw/ws) wire of IPCU/A
• 3 Red (rt) wire of IPCU/E
• 4 Black/white (sw/ws) wire of Climatronic control unit
• 5 Original vehicle wiring harness
• 6 Black/white (sw/ws) wire of connector T6t/2
• 7 Connector T6t

Image shows the connections to the fan unit.

Installing fan unit

Reinstall fan unit 2.

• 1 IPCU wiring harness

Image shows the reinstallation of the fan unit.

Digital timer

Components:

• 1 Summer/winter switch
• 2 Digital timer

Image shows the digital timer and switch.

Installing digital timer

Remote option Telestart

Fasten receiver 1 with adhesive tape.

Image shows the Telestart receiver installation.

Installing receiver

Antenna

Image shows the antenna installation.

Gluing on antenna

Temperature sensor HTM100

Fasten temperature sensor 1 with adhesive tape.

Image shows the temperature sensor installation.

Installing temperature sensor

Premounting heater

Cutting combustion air pipe to length

Diagram shows combustion air pipe with dimensions. Section X is to be discarded.

• 1 Combustion air pipe
• a = 250

Image shows the Ejot stud.

• 1 Ejot stud

Premounting heater

Insert one washer each between heater and bracket at positions 2.

• 1 M6x30 spacer nut
• 2 Ejot screw, washer [2x each]
• 3 27 mm dia. hose clamp
• 4 Combustion air pipe
• 5 Bracket

Image shows the heater assembly with bracket.

• 1 Strut
• 2 Ejot screw [2x]
• 3 Silencer
• 4 Retaining clip in hole
• 5 Combustion air pipe
• 6 Hose section, 10 mm dia. hose clamp [2x]
• 7 Fuel line

Image shows the assembled heater components.

Preparing exhaust

Cutting exhaust pipe to length

Diagram shows exhaust pipe sections with dimensions. Section X is to be discarded.

• 1 Exhaust pipe
• a = 190
• 2 Exhaust end section
• b = 240

Image shows exhaust pipe assembly with hose clamp and silencer.

• 1 M6x16 bolt, spring lockwasher
• 2 Hose clamp [2x]
• 3 Red (rt) rubber isolator, without groove
• 4 Exhaust pipe with insulation
• 5 Silencer

Image shows exhaust end section assembly.

• 1 Hose clamp
• 2 Red (rt) rubber isolator, without groove
• 3 Exhaust end section

Premounting exhaust system

Preparing coolant circuit (1.6 TDI)

Cutting hoses to length

Diagram shows coolant hoses with dimensions. Section X is to be discarded.

• B = 840
• C = 100
• D = 720

Push braided protection hoses onto hose A and C and cut to length. Cut heat shrink plastic tubing to length.

• 1 25 mm long heat shrink plastic tubing [4x]

Preparing coolant hoses

Image shows preparation of coolant hoses.

Installing Hose C

• 1 27 mm dia. spring clip
• 2 Cable tie [2x]
• 3 27 mm dia. hose clamp
• 4 20x20 connecting pipe

Image shows the installation of Hose C.

Preparing hose A and B.

• 1 20x20 mm connecting pipe, 27 mm dia. spring clip [2x]
• 2 18x20 connecting pipe, 27 mm dia. spring clip

Image shows preparation of hoses A and B.

Premounting hoses

Image shows premounting of hoses.

• 1 27 mm dia. spring clip
• 2 27 mm dia. hose clamp

Cutting point

Remove hose on heat exchanger inlet 3.

• 1 Engine outlet
• 2 Cutting point

Image shows cutting point on engine outlet.

Premounting hose on heat exchanger inlet

After preinstalling hose, reinstall heat exchanger inlet on vehicle.

• 1 Original vehicle coupling for heat exchanger
• 2 Black (sw) rubber profile
• 3 25 mm dia. spring clip
• 4 18x20 connecting pipe

Image shows the hose on the heat exchanger inlet.

Aligning clips

Align original vehicle hose clips 1 [3x] as shown.

Image shows alignment of hose clips.

Preparing coolant circuit (2.0 TDI)

Cutting hoses to length

Diagram shows coolant hose D (180° elbow) with dimensions. Section X is to be discarded.

• A = 920
• B = 100
• C = 910

Push braided protection hoses onto hose A and C and cut to length. Cut heat shrink plastic tubing to length.

• 1 25 mm long heat shrink plastic tubing [4x]

Preparing coolant hoses

Image shows preparation of coolant hoses.

Installing Hose B

• 1 27 mm dia. spring clip
• 2 Cable tie [2x]
• 3 27 mm dia. hose clamp
• 4 20x20 connecting pipe

Image shows installation of Hose B.

Preparing Hose C and D

• 1 20x20 mm connecting pipe, 27 mm dia. spring clip [2x]

Image shows preparation of Hoses C and D.

Cutting point

Pull out hose from engine outlet 1. Spring clip 2 will be reused. Remove coupling of heat exchanger inlet 3.

Image shows hose removal from engine outlet.

• 1 Original vehicle spring clip
• 2 Coupling of heat exchanger inlet

Premounting Hose C and D

• 1 27 mm dia. spring clip
• 2 27 mm dia. hose clamp

Image shows premounting of hoses C and D.

Premounting hoses

Image shows premounting of hoses.

Preparing installation location

Secure large diameter washer against falling with putty etc.

• 1 Large diameter washer on original vehicle stud bolt [3x]
• 2 100 mm edge protection

Image shows preparation of the installation location.

Installing heater

• 1 Large diameter washer, flanged nut M8 [3x]

Image shows the heater being installed.

Aligning exhaust system

Ensure freedom of movement of exhaust system relative to original vehicle component and lines.

• 1 Original vehicle wiring harnesses (secured with cable ties)
• 2 Horn
• 3 Exhaust pipe

Image shows alignment of the exhaust system.

Ensure freedom of movement of exhaust system relative to original vehicle component and lines.

• 1 Exhaust pipe
• 2 Original vehicle wiring harnesses (secured with cable ties)
• 3 Horn

Image shows alignment of the exhaust system.

Mounting wiring harness

Punch through perforation of heater cover at Position 2. Insert clip-type cable tie and fasten wiring harness of heater 1.

Image shows mounting of the wiring harness.

• 1 Cable tie
• 2 Wiring harness of heater
• 3 50 mm edge protection

Combustion air silencer tied away for demonstration purposes.

Fastening wiring harness

Fuel

CAUTION!

Open the vehicle's fuel tank cap, ventilate the tank and then re-close the tank lock.

Catch any fuel running off with an appropriate container.

Install fuel line and metering-pump wiring harness so that they are protected against stone impact. Unless specified otherwise, always fasten using cable ties.

Mount the fuel line and wiring harness with rub protection on sharp edges.

WARNING!

The fuel line and wiring harness are routed to the metering pump in as shown in the wiring harness routing diagram.

Installing fuel line

Image shows fuel line installation.

• 1 Fuel line

Installing lines

Route fuel line and wiring harness of metering pump 2 in coolant reservoir to right and fasten on original vehicle lines with cable ties. Pay particular attention to freedom of movement of wiper linkage.

Image shows routing of fuel line and wiring harness.

Installing lines

Route fuel line and wiring harness of metering pump to underbody in wiring duct.

• 1 Existing pass through [2x]

Image shows routing to the underbody.

Installing lines

Route fuel line and wiring harness of metering pump along original vehicle fuel lines 2 to fuel tank.

• 1 Line duct

Image shows routing along fuel lines.

Moving bracket

Remove sealing plug 3 for installation. Remove bracket of handbrake cable at Position 2 and install at Position 1.

Image shows bracket relocation.

Installing silent block

• 1 Silent block, large diameter washer, flanged nut

Image shows silent block installation.

Installing metering pump

After installation, re-insert sealing plug at Position 4.

• 1 Wiring harness of metering pump, connector mounted
• 2 Rubber-coated p-clamp, flanged nut, silent block
• 3 Metering pump
• 5 Fuel line, hose section, 10 mm dia. hose clamp [2x]

Image shows metering pump installation.

Cutting standpipe and moulded hose to length

Diagram shows standpipe and moulded hose with dimensions.

• 1 Standpipe
• 2 Moulded hose

Image shows standpipe and moulded hose.

Premounting standpipe and moulded hose

10 mm dia. Caillau clamp 2 in centre between beads on end of standpipe.

• 1 Standpipe
• 3 Moulded hose

Image shows premounting of standpipe and hose.

Cutting off blind plug

Cut 3 mm off blind plug 1.

• 2 Fuel-tank sending unit

Image shows cutting the blind plug.

Connection to fuel-tank sending unit

Ensure sufficient distance to adjacent components, especially to fuel gauge.

• 1 13.5 mm dia. Caillau clamp
• 2 Fuel line
• 3 10 mm dia. Caillau clamp
• 4 Moulded hose with standpipe

Image shows connection to the fuel tank sending unit.

Connecting metering pump

• 1 Hose section, 10 mm dia. hose clamp [2x]
• 2 Fuel line

Image shows connection of the metering pump.

1.6 TDI coolant circuit

WARNING! Any coolant running off should be collected using an appropriate container. Install hoses so that they are kink-free. Unless specified otherwise, always fasten using cable ties. Position clamps so that no other hose can be damaged! When installing the hoses, the heater must be filled with coolant.

The connection should be "inline" based on the following diagram:

Hose routing diagram:

Diagram illustrating the coolant hose routing for the 1.6 TDI engine. Shows connections between heater, engine components, and coolant reservoir. Includes labels A, B, C, D for hose sections and numbered components. Specifications for spring clips, connecting pipes, and hose clamps are provided: All spring clips without a specific designation = 27 mm dia. All connecting pipes without a specific designation = dia. 20x20 mm. All hose clamps = 20-27 mm dia.! 1 = Black (sw) rubber isolator. 2 = 25 mm dia. spring clip. 3 = Connecting pipe = 18x20 mm dia.

Installing clip-type cable tie

6 mm dia. hole at Position 1. When drilling holes, watch lines located behind them. Installing clip-type cable tie 1.

• 2 50 mm edge protection

Image shows installation of clip-type cable tie.

Installing bracket

Insert clip-type cable tie 1 [2x] in holes of bracket for coolant hoses 2.

• 3 M6x20 bolt, flanged nut, existing hole

Image shows installation of bracket.

Routing in engine compartment

Close clip-type cable tie 1 [3x].

Image shows routing in the engine compartment.

Connecting engine outlet

Image shows connection at the engine outlet.

• 1 Hose of engine outlet

Connecting heat exchanger inlet

Image shows connection at the heat exchanger inlet.

• 1 90° connection of heat exchanger inlet
• 2 Original vehicle spring clip
• 3 Spacer bracket

Installing spacer bracket

Image shows installation of the spacer bracket.

Aligning hoses

Fix Hose B and D with cable tie 1 to original vehicle hose.

Image shows alignment of hoses.

2.0 TDI coolant circuit

WARNING! Any coolant running off should be collected using an appropriate container. Install hoses so that they are kink-free. Unless specified otherwise, always fasten using cable ties. Position clamps so that no other hose can be damaged! When installing the hoses, the heater must be filled with coolant.

The connection should be "inline" based on the following diagram:

Hose routing diagram:

Diagram illustrating the coolant hose routing for the 2.0 TDI engine. Shows connections between heater, engine components, and coolant reservoir. Includes labels A, B, C, D for hose sections and numbered components. Specifications for spring clips, connecting pipes, and hose clamps are provided: All spring clips = 27mm dia. 1 = Original vehicle spring clip. All connecting pipes = 20x20 mm dia. All hose clamps = 20-27 mm dia.!

Aligning clips

Align original vehicle hose clips 1 [2x] as shown (turn to left).

Image shows alignment of clips.

Installing clip-type cable tie

6 mm dia. hole at Position 1. When drilling holes, watch lines located behind them. Installing clip-type cable tie 1.

• 2 50 mm edge protection

Image shows installation of clip-type cable tie.

Installing bracket

Insert clip-type cable tie 1 [2x] in holes of bracket for coolant hoses 2.

• 3 M6x20 bolt, flanged nut, existing hole

Image shows installation of bracket.

Routing in engine compartment

Close clip-type cable tie 1 [3x].

Image shows routing in the engine compartment.

Connecting engine outlet

Image shows connection at the engine outlet.

• 1 Hose of engine outlet

Connecting heat exchanger inlet

Image shows connection at the heat exchanger inlet.

• 1 90° connection of heat exchanger inlet
• 2 Original vehicle spring clip
• 3 Spacer bracket

Installing spacer bracket

Image shows installation of the spacer bracket.

Aligning hoses

Fix Hose A and C with cable tie.

Image shows alignment of hoses.

Aligning hoses

Fix Hose A and C with cable tie. Ensure sufficient distance to neighbouring components.

Image shows alignment of hoses.

Preparing air filter box

The position of the drain pipe may vary.

Glue rub protection 2 [2x] as shown on air filter box 1.

Image shows preparation of the air filter box.

Installing air cleaner housing

Version 1: If drain pipe 1 exists as shown, route it parallel to the coolant hose C/D.

Image shows installation for Version 1.

Fastening drain pipe of air filter box

If drain pipe 2 exists as shown, fasten with cable tie 1 to strut.

Image shows fastening of the drain pipe.

Installing air cleaner housing

Version 2: If drain pipe 1 exists as shown, route it between the coolant hoses A/B and C/D.

Image shows installation for Version 2.

Exhaust gas

Installing wheel well trim

Align exhaust end section 2 and rubber isolator 1 as shown. Ensure sufficient distance of exhaust end section from wheel well trim.

Image shows exhaust gas installation.

Hole in underride protection

If insulation exists, remove it at Position 2.

• 1 Underride protection
• 2 42 mm dia. hole

Image shows underride protection.

Mounting rubber isolator

Align exhaust end section 3 flush on red (rt) rubber isolator 2.

• 1 Underride protection

Image shows mounting of rubber isolator.

Final Work

WARNING! Reassemble the disassembled components in reverse order. Check all hoses, clamps and all electrical connections for firm seating. Insulate all loose wires and tie back.

Only use manufacturer-approved coolant. Spray the heater components with anti-corrosion wax (Tectyl 100K, Order No. 111329).

• Connect the battery
• Fill and bleed the coolant circuit according to the vehicle manufacturer's specifications.
• Adjust digital timer, teach Telestart
• Make settings on A/C control panel according to the "Operating Instructions for End Customer".
• Place instruction signboard "Switch off parking heater before refuelling“ in the area of the filler neck
• For initial start-up and function test, refer to installation instructions

Contact Information:

Webasto AG
Postfach 80
D-82132 Stockdorf / Germany
National Hotline: 01805 93 22 78 (14 Cent aus dem deutschen Festnetz)
Hotfax: 0395 5592 353
Email: hotline@webasto.de
Website: http://www.webasto.de

Printed in Germany 10/2011 Printing: Steffen

Operating Instructions for End Customer

Please remove page and add to the vehicle operating instructions.

Note:

We recommend matching the heating time to the driving time. Heating time = driving time.

Example: For a driving time of approx. 20 min. (in one direction), we recommend not exceeding a switch-on time of 20 min.

If the summer/winter switch option has been installed, this must be switched in accordance with the time of year. The heater will then heat in the position Winter and in the position Summer it will only switch on the vehicle fan to ventilate the vehicle interior.

For vehicles with passenger compartment monitoring, this is to be deactivated in addition to the vehicle settings of the heating operation. For information on deactivation, please see the vehicle owner's manual.

Before parking the vehicle, make the following settings:

Climatic System:

Image shows Climatic control panel.

• 1 Direct air outlet toward windscreen
• 2 Set fan to level "1", or possibly "2"
• 3 Set temperature to "max."

Climatronic System:

Image shows Climatronic control panel.

• 1 Direct air outlet toward windscreen
• 2 Set temperature on both sides to "HI".