12 63 060 - Temperature switch 45°C (113° F) - remove and install < 12 - Engine Electrical Equipment < BMW 728 - 745i
 
From model '83
REMOVING AND INSTALLING 45° C (113° F)
TEMPERATURE SWITCH

Pull off plug (1).
Remove temperature switch.
Installation:
Tightening torque: max. 30 Nm (22 ft. lbs.).
Fill and bleed cooling system (Group 17).

2013639 - click to zoom
 
Installation:
Check code number (1)* and switching
point (2)*.


Siehe auch * See Specifications
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Checking:
Connect ohmmeter (M 06) on temperature switch.
Ohmmeter should display approximately 0 ohm for
temperature < 30° C (86° F).
Ohmmeter should display approximately ohms
for temperature > 48° C (118° F).

2013634 - click to zoom
 
ACTIVE CARBON FILTER VENT - HOSE ROUTING AND
COMPONENTS

1 = Thermo valve; tightening torque max. 15 NM (11 ft. lbs.)
opens >= 43 ± 3° C (109 ± 5° F) - opens with rising temperature
switching temperature closes <= 33 ± 3° C (91 ± 5° F)

2 = Flushing air control valve

3 = Hose to active carbon filter

4 = Hose to throttle housing

5 = Check valve

Connections on thermo valve must not be mixed up
- center connection for throttle housing.

DESCRIPTION:

There will be vacuum in hose (4) from partial load on (not at idle speed).
A thermo valve switches on vacuum through to the flushing air control valve
as from a coolant temperature of >= 46° C (115° F).
With vacuum supply the flushing air control valve switches and the active
carbon filter is flushed with fresh air depending on speed and temperature.

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