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Audi A6 242 - Pneumatic System Operation

Audi A6 242
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45
Suction/compression
When the piston moves
upwards, air is sucked into the
crankcase via the sinter filter. The
air is compressed above the
piston and enters the air dryer
via non-return valve 1.
The compressed and dried air
passes via non-return valve 2 to
the pressure connector which
leads to the transverse check
valves N150 and N151.
Overflow
When the piston moves back, the
air which has been sucked into
the crankcase passes via the
diaphragm valve into the
cylinder.
Filling/lifting
The relay for the compressor
and the air spring valves are
controlled simultaneously by the
control unit for filling (see
Suction/Compression).
242_015
Non-return valve 1
Air dryer
Pressure connector
Non-return valve 2
242_014
Diaphragm valve
Suction/compression
Overflow

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