Webasto BlueHeat Installation Instructions Manual - page 15
2004 Lexus RX330 3.3 Liter V-6
12
Concluding Work
Power Connection
Position 1 and 2
– Connect heater power lead to the positive terminal of
the battery.
– Connect battery ground cable(s).
Final Inspection and Initial Start-up
Final Inspection
1. Check all fasteners to ensure system is secure.
2. Check routing of coolant lines and ensure coolant lines are securely tied and protected against chaffing and
related damage.
3. Check routing of air intake and exhaust lines and ensure lines are secure. Keep hot exhaust components away
from heat sensitive vehicle components and fuel lines.
4. Check routing of fuel lines and ensure fuel lines are securely tied and protected against chaffing and related
damage.
5. Check routing of wiring harnesses and ensure wiring harnesses are securely tied and protected against chaffing
and related damage.
6. Check for loose wiring connections and battery connections.
7. Check operation of vehicle heater fan with Webasto heater OFF.
Initial Start-up
1. Top off cooling system with coolant per engine/vehicle manufacturers recommendations.
2. Set interior heater control to maximum heat position (hot) and switch off air conditioning system.
3. Start the vehicle engine and run on fast idle for 5 minutes to purge any remaining air from the Webasto heater
and coolant system. While the engine is running check:
• hose connections for leaks.
• coolant level in expansion tank. Add coolant as needed.
4. Switch off the engine.
ATTENTION
More than one start-up attempt of the heater may be required to purge air from fuel system before heater will
start. Cycle heater Off and On after each failed start attempt until heater starts successfully. If heater should fault
to the lock-out mode, which is possible after three start attempts, refer to “Troubleshooting” and follow directions
under “Heater Lockout Reset Procedure.” No further start attempts are possible until the lockout condition is
cleared.
5. Switch on the Webasto heater by means of the instant heat button on timer and check:
• timer panel and instant heat indicator illuminates.
• circulating pump in operation.
• initiation of start-up sequence.
• successful start-up and operation.
6. Allow heater to run for 20 minutes or until coolant is heated to temperature. Re-tighten all hose clamps.
7. Install all vehicle components removed during heater installation.
8. Place Owners Manual and related documentation in vehicle.
Fig. 38 Example only
1
2
FR
O
N
T
Final
Inspection
Initial Start-
up