Webasto D5W Z Manual Download Page 8

D5W Z heater upgrade

Galaxy

8

Circulating pump actuation

For vehicles with 66 kW and 85 kW 
engines only

The vehicle’s circulating pump is activated by PIN 6 on 
module A302 (1) of the “air-conditioning compressor 
coupling” in slot C16 of the central electrics box CJB.

- Disconnect module A302 (1)

Make the connections using the supplied butt 
connectors as shown in the figure and in the circuit 
diagram in Figure 3 (crimp and shrink).

- Release the socket (4) from the fuse/relay holder
- Cut the green cable (3, 5) from module A302 to the

coolant pump M151 approx. 50 mm behind the
socket (4), PIN 6 

- Connect the black cable (1) from relay K3.3/30 to the

green cable (5) to the refrigerant pump M151

- Connect the red cable (2) from relay K3.3/87a to the

green cable (3) from module A302

- Engage the socket (4) in the fuse/relay holder again

and connect module A302

For vehicles with 96 kW and 110 kW 
engines only

The vehicle’s circulating pump is activated by PIN 7 on 
inversion relay K245 (1) of the “radiator blower slow-
down” in slot C25 of the central electrics box CJB.

- Disconnect inversion relay K245 (1) 

Make the connections using the supplied butt 
connectors as shown in the figure and in the circuit 
diagram in Figure 4 (crimp and shrink).

- Release the socket (2) from the fuse/relay holder
- Cut the green cable (1, 3) from inversion relay K245

to the coolant pump M151 approx. 50 mm behind
the socket (2), PIN 7 

- Connect the black cable (5) from relay K3.3/30 to the

green cable (1) to the coolant pump M151

- Connect the red cable (4) from relay K3.3/87a to the

green cable (3) from inversion relay K245

- Engage the socket (2) in the fuse/relay holder again

and inversion relay K245

1

7

5

3

1

4

2

8

1

9

5

2

1

3

10

4

Summary of Contents for D5W Z

Page 1: ...This may result in serious or fatal injuries Special company training technical documentation special tools and special equipment are required for the installation and repair of Webasto heating and c...

Page 2: ...rating instructions for the end customer 15 Validity NOTE The vehicle types engine types and equipment versions not listed in these installation instructions have not been tested It may nevertheless b...

Page 3: ...quired to the installation work set out in these installation instructions The appropriate engineering conventions and any instructions from the vehicle manufacturer must be observed for the installat...

Page 4: ...rim on the driver s side Remove the left side skirt trim Release the fuse relay holder 1 For vehicles with automatic air conditioning system only Remove the air conditioning control ATC module A96 Cir...

Page 5: ...F22 Blade type fuse car M124 Front blower motor M151 Refrigerant pump N289 External temperature switch P91 Central electrics box X Isolation point NOTE The vehicle s C311 plug connector is on the und...

Page 6: ...un on inverter relay M124 Front blower motor M151 Refrigerant pump N289 External temperature switch P91 Central electrics box X Isolation point NOTE The vehicle s C311 plug connector is on the underfl...

Page 7: ...der 5 NOTE The order of the various relays depends on the vehicle s equipment Connect the black control relay K3 1 4 to the red relay socket Connect the three grey relays 1 2 3 to the black relay sock...

Page 8: ...cable 3 from module A302 Engage the socket 4 in the fuse relay holder again and connect module A302 For vehicles with 96 kW and 110 kW engines only The vehicle s circulating pump is activated by PIN...

Page 9: ...Cut the red cable 1 from the standard main blade type fuse F 106 110 A to plug C6 supply to standard blade type fuses F51 to F54 as shown in the figure IMPORTANT The black insulation sheath is used o...

Page 10: ...air conditioning system only NOTE Insulate and tie back the longer black cable This cable is not required it is routed in the timer wiring harness with a crimped PIN For vehicles with automatic air c...

Page 11: ...ug C2 1 PIN 13 in the central electrics box P91 Make the connections as shown in the figure and the circuit diagram in Figure 3 or 4 Route the second black cable 2 with crimped PIN to plug C2 1 Discon...

Page 12: ...position Drill two holes using the template Remove the template Connect the plug of the digital timer wiring harness to the digital timer 1 Secure the digital timer 1 to the instrument panel with the...

Page 13: ...he Telestart receiver 1 using the existing screw in position 2 with the fuse relay holder Place the Telestart receiver 1 on the holder Telestart aerial installation NOTE Clean degrease the area to whi...

Page 14: ...standard blade type fuse F3 to plug connector C311 PIN 7 NOTE The vehicle s C311 plug connector is on the underfloor in front of the heater 2 On the black cable 1 2 from exterior temperature switch N...

Page 15: ...e diode group output Concluding work Install all the removed parts in reverse Check that all electrical connections are tight Secure all loose lines and cables with cable ties Connect the car battery...

Page 16: ...Printed in Germany 07 04 Printed by Steffen Webasto AG Kraillinger Stra e 5 82131 Stockdorf http www webasto de...

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