Webasto BlueHeat Installation Instructions Manual - page 12
2004 Lexus RX330 3.3 Liter V-6
9
2
3
1
Fig. 28
Integration into the Coolant System
NOTE:
For an overview of the coolant circuit, turn to the back
section of this manual for a plumbing schematic.
NOTE:
Torque all hose clamps to 1.5 - 2.0 Nm (13 - 18 lb-in.).
Position 1, 2 and 3
– Cut coolant supply hose to heat exchanger between
hose clamping pliers.
Position 4, 5 and 6
– Install 90 degree coolant hose on heater outlet with
clamp.
Position 7, 8 and 9
– Install 180 degree coolant hose on heater inlet with
clamp.
Position 9, 10, 11 and 12
– Route heater inlet and outlet hoses between air box
bracket and engine.
– Cover hoses with loom where they come into contact
with air box bracket.
– Reposition coolant supply hose coming from engine as
shown.
– Connect heater inlet hose to coolant supply hose with
adapter and to hose clamps.
Position 13, 14, 15 and 4
– Connect heater outlet hose to hose going to heat
exchanger with adapter and two clamps.
Preparing
Heater
Hoses For
Connection
4
6
5
Fig. 29
8
9
7
Fig. 30
12
13
14
4
11
9
10
15
Fig. 31