BMW 7 Series: Removing And Installing Complete Independent Heater
WARNING: Risk of scalding! Only perform the following repair work on an engine that has cooled down.
Follow Notes for Repair Work on Cooling System.
NOTE: Clamp off coolant hoses on independent heater.
Recycling
Fuel escapes when fuel line is detached. Have a suitable collecting vessel ready.
Catch and dispose of escaping fuel.
Observe country-specific waste disposal regulations.
Necessary preliminary work
- Remove FRONT WHEEL ARCH COVER (FRONT SECTION)
- Remove FRONT UNDERBODY PROTECTION
Release screws (1).
Remove lower left cover (2).
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Fig. 114: Identifying Lower Left Cover Screws
Release spring clamps (1) and detach coolant hoses.
Installation note: Top Up Coolant and Bleed Cooling System: See DRAINING AND ADDING COOLANT.
Unlock and detach fuel line (2).
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Fig. 115: Identifying Fuel Line And Spring Clamps
Release plug connections (1) and disconnect.
Unfasten screws (2).
Lower independent heater (3).
Installation note: Make independent heater (3) is correctly seated.
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Fig. 116: Disconnecting Plug Connections And Screws
Release spring strap (1) and detach coolant hose (3).
Remove independent heater (3).
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Fig. 117: Identifying Independent Heater, Spring Strap And Coolant Hose
READ NEXT:
Removing And Installing Or Replacing Fuel Pump
Recycling
Fuel escapes when fuel lines are detached. Have a suitable collecting vessel
ready.
Catch and dispose of escaping fuel.
Observe country-specific waste disposal regulations.
Undo screw (1
Removing And Installing/Replacing Exhaust Pipe
Necessary preliminary work
Remove FRONT UNDERBODY PROTECTION
NOTE: Graphic similar.
Release screws (1).
Remove lower left cover (2).
Fig. 124: Identifying Lower Left Cover Screws
Slacken nut (1).
SEE MORE:
System Components
Involved Components
The following components are involved in the wiper/washer system:
Control units
Steering column switch cluster
Central gateway module
Junction box electronics
Instrument cluster
Dynamic stability control
Rain/lights/solar/condensation sensor
Wiper switch on the
Ignition Coil
NOTES ON CHECKING IGNITION SYSTEM
Troubleshooting
Fault in fuel injection system
Spark plug faults
Ignition coil faults
Further fault patterns with evaluation
Additional fault notes for troubleshooting
Oscillograms
Normal oscillogram
Oscillograms of ignition coils from different manufactur
