Operation And Display; Operation - Audi 243 Service Manual

Operation

The self-levelling control unit E281 is used to
control the 4-level air suspension and the
display/monitor the system status.
Certain level changes occur automatically
during normal driving (see Control strategy).
Within defined conditions (see Control
strategy) the driver can use the "raise" or
"lower" buttons to select an appropriate level
at any time.
It is possible to switch to a higher level
only when the engine is running or
when sufficient pressure is present in
the pressure accumulator.

Operation and display

Operating unit for self-levelling E281
Pressing the "raise" button once selects the
next highest level. By pressing the button
repeatedly, it is possible to change, e.g.
directly from low level to high level 1. High
level 2 cannot be selected until high level 1
has already been set.
Changing to a lower level is performed in the
same manner as described above using the
"lower" button. By pressing several times (x3)
it is possible to shift directly from high level 2
to the low level.
It is possible to change to a lower level even
when the engine is switched off.
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