BMW 5251 Service Manual page 741

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Rear Suspension!
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Air compressor pump relay, removing and
installing
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Working in cargo compartment, remove spare wheel.
4
Remove air supply pump fasteners (arrows). Turn pump
over.
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Turn relay plug 45" and remove relay.
EHC control module, removing and
installing
The EHC control module is mounted on the right side of the
spare tire well in the cargo compartment.
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Remove spare tire.
4
Remove electrical components cover (A).
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Release control module wiring harness plug loclting clip
(B)
and remove module.
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Installation is reverse of removal.
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After assembly, reset ride height using BMW diagnostic scan
tool DIS.
Air supply unit, removing and installing
CAUTION-
Maintain high levels of cleanliness around air line connec-
tions when disassembling and assembling air suspension
components. Even small dirt particles can cause leakage in
the pressurized system.
When the airsupply unit is removed for any reason, reset ride
height using BMW scan tools DIS or MoDiC.
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Remove spare tire.
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