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