Audi A4: Coolant temperature display
Applies to: vehicles with a coolant temperature indicator
The coolant temperature display (9) only functions when the ignition is
switched on.
To reduce the risk of engine damage, please observe
the following notes about the temperature
ranges.
Cold range
If only the LEDs at the bottom of the gauge turn
on, the engine has not reached operating temperature
yet. Avoid high engine speeds, full acceleration,
and heavy engine loads.
Normal range
The engine has reached its operating temperature
once the LEDs up to the center of the gauge
turn on. If the
indicator light in
the instrument cluster display turns on, the coolant temperature
is too high.
Note
- Auxiliary headlights and other accessories in
front of the air intake impair the cooling effect
of the coolant. This increases the risk of
the engine overheating during high outside
temperatures and heavy engine load.
- The front spoiler also helps to distribute
cooling air correctly while driving. If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the engine overheating
will increase. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.
READ NEXT:
The tachometer (1) displays the engine
speed in revolutions per minute (RPM). The beginning
of the red zone in the tachometer indicates
the maximum permissible engine speed for
all gears once the engi
General information
Applies to: touch display
The center display is a touchscreen. Operation is
very similar to operating a smartphone.
Tips
Certain gestures are not available in every
menu.
Pressing
SEE MORE:
The expansion valve atomizes the streaming refrigerant and
controls the flow quantity so that the vapor is gaseous only at
the evaporator outlet, depending on the heat transmission.
Note
Be sure to use the correct part number when replacing the
expansion valve. Refer to the Parts Catalo
Removing
- Remove the window frame trim panel. Refer to
→ Body Interior; Rep. Gr.70; Rear Door Trim Panels; Window Frame
Trim Panel, Removing and Installing.
- Remove the B-pillar trim. Refer to
→ Chapter "B-Pillar Door Trim, Removing and Installing, Rear".
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