Page 1
Webasto heating and cooling systems. Only original Webasto parts must be used. For this, also see the catalog of air and water heat- er accessories from Webasto. NEVER attempt to install or repair Webasto heating or cooling systems if you have not...
Mazda 3 Table of Contents Validity Preparing installation location Heater/installation kit Installing heater Foreword Fuel General instructions Coolant circuit Special tools Combustion air Explanatory notes on document Exhaust gas Preliminary work Final Work Heater installation location Operating Instructions for End Customer Preparing electrical system Electrical system Fan control for manual air conditioning...
Mazda 3 Heater/installation kit Quantity Description Order No.: Retail accessories Thermo Top E / C See Mazda price list Installation kit for Mazda 3 2009 1.6 Petrol 1314977A Mazda Order No.: 4100-78-771 Heater control See price list Heater recommended for the respective vehicle class:...
Mazda 3 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. Mechanical system Electrical system Coolant circuit Fuel Exhaust gas Combustion air...
Mazda 3 Preliminary work WARNING! - Open the fuel tank cap and vent the fuel tank. - Close the tank cap again. - Disconnect the battery "earth" or "ground" connection. - 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.
Mazda 3 Preparing electrical system Only with automatic air-conditioning Install wire section 2 in protective sleeving provided. Cutting wires to length 0,75² Produce connections as shown in wiring dia- gram. Install wire section 2 in protective sleeving provided. Preparing fuse F4 1314978D_EN...
Mazda 3 Fan control for manual air conditioning Webasto Mazda Wiring dia- gram F-02 C-51 C-03 4² 4² Webasto components Vehicle components Colours and symbols Heater TT-C/E Fan motor 6-pin heater connector Fan relay black 25A fuse Fan switch pink...
Mazda Wiring dia- gram F-02 C-51 C-03 4² 0740-201B 4² 0740-201A 0,75² 0740-203 0,75² Webasto components Vehicle components Colours and symbols Heater TT-C/E Fan motor 6-pin heater connector GRs Fan relay black 25A fuse Fan controller pink Fan relay 0740-203...
Page 10
Mazda 3 Connection on connector C-03 5 A-pillar. Produce connections as shown in wiring dia- gram. 1 Light blue (hbl) wire of fan motor 2 Black (sw) wire of K3/30 Connect- 3 Red (rt) wire of K3/87a ing fan-mo- 4 Light blue (hbl) wire of connector C-03 Connection on 16-pin connector 0740-201B 4 from A/C control panel.
Mazda 3 Preparing installation location 1 Drill out 9.1 mm dia. hole 2 9.1 mm dia. hole Preparing installa- tion loca- tion Original vehicle bolt removed at position 2 . 1 Rivet nut [2x] Installing rivet nut Cut perforated bracket A to size. Angle down perforated bracket B by approx.
Mazda 3 1 Loosely mount M6x20 bolt, flanged nut Preparing bracket Insert 5 mm shim at position 1 , 10 mm shim at position 2 and 40 mm shim at position 4 be- tween bracket and frame side member. Tight- en all loose mounting hardware.
Mazda 3 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. Un- less specified otherwise, always fasten using cable ties.
Page 15
Mazda 3 Shape fuel standpipe 1 as shown. Preparing fuel stand- pipe 1 Fuel-tank vent line 2 24 mm dia. clamp [2x] 3 Fuel standpipe 4 Hose section, 10 mm dia. clamp [2x] 5 Fuel line Installing fuel stand- pipe Insert fuel standpipe 1 through ventilation connecting piece.
Page 16
Mazda 3 Fix fuel line 1 in place on fuel tank with adhe- sive tape. Install fuel tank in accordance with manufacturer's instructions Fastening fuel line Shorten 180° moulded hose 1 . Cutting moulded hose to length 1 Original vehicle bolt 2 Bracket of metering pump 3 Silent block, flanged nut [2x] 4 Loosely install rubber-coated p-clamp...
Mazda 3 Coolant circuit WARNING! Any coolant running off should be collected using an appropriate container! Route hoses kink-free! Un- less 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"...
Page 18
Mazda 3 Discard section X . A = 1000 B = 135 C = 920 Cutting hoses to length Connect hose B and C . Slide on red (rt) rub- ber isolator 1 [2x] and black (sw) rubber isola- tor 2 [2x]. Premount- ing hoses 1 Perforated bracket...
Page 19
Mazda 3 Align black (sw) rubber isolator 2 to connector Connec- tion of heater Routing in engine compart- ment Cut off original vehicle hose on engine out- let/heat exchanger inlet 1 at marking. Cutting point Hose section on engine outlet 3 on connec- tion piece turned by approx.
Page 20
Mazda 3 Route hose A through rubber-coated p-clamp 1 Engine outlet hose section Connect- ing engine outlet Route hose C through rubber-coated p- clamp. Align black (sw) rubber isolator 2 to brake line. Ensure sufficient distance to neighbouring components. 1 Hose on heat exchanger inlet Connect- ing heat exchanger...
Mazda 3 Combustion air Discard section X . 1 Combustion air pipe a = 180 Cutting combus- tion air pipe to length 1 Combustion air pipe 2 27 mm dia. clamp Installing combus- tion air pipe 1 Original vehicle stud bolt, flanged nut 2 Silencer 3 52 mm dia.
Mazda 3 Exhaust gas Discard section X . 1 Exhaust pipe a = 380 Preparing 2 Exhaust end section exhaust b = 380 pipe Turn perforated bracket 1 by 90° in longitudi- nal axis Preparing perforated bracket 1 Perforated bracket 2 M6x20 bolt, flanged nut 3 Silencer Premount-...
Page 23
Mazda 3 1 Hose clamp [2x] 2 Exhaust pipe Installing exhaust pipe When drilling, watch components located be- hind! 1 6.5 mm dia. hole Drilling hole in cross member Angle down perforated bracket 1 by 90° Preparing perforated bracket 1 Perforated bracket 2 M6x20 bolt, large diameter washer, flang- ed nut Installing...
Page 24
Mazda 3 1 M6x20 bolt, M6 flanged nut 2 25 mm dia. p-clamp 3 Exhaust end section Fastening exhaust end sec- tion Detach horn 1 and twist. Ensure sufficient dis- tance to adjacent components, especially to the silencer! Twisting horn Cut out underride protection 1 on marking.
- Place the sticker "Switch off parking heater before re-fuelling" in the area of the filler neck - For initial startup and function test, see installation instructions Feel the drive Webasto AG Postfach 80 D-82132 Stockdorf / Germany National Hotline: 01805 93 22 78...
Mazda 3 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.