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Home >> Infiniti >> 2011 >> M37 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Suspension Control System) >> HBMC >> System Description >> System >> Component Description
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Component Description

WARNING: This page is about a different car, the 2012 Infiniti QX56 and 2011 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
COMPONENT DESCRIPTION CHART

Component parts Description
Needle valve A Needle valve for oil filling or trouble diagnosis. It is usually closed.
Needle valve B Needle valve for trouble diagnosis. It is usually open.
Needle valve C Needle valve for oil filling or trouble diagnosis. It is usually closed.
Needle valve D Needle valve for trouble diagnosis. It is usually open.
Needle valve E Needle valve for oil filling or trouble diagnosis. It is usually closed.
Relief valve If system pressure increases, then the orifice becomes clogged and oil flow into PPMU becomes disrupted, resulting in a large pressure difference between PPMU and both pipes. In this case, the relief valve opens to let the oil flow.
Oil injection jack
  • Oil filling inlet
  • For basic inspection use.
Air bleeder For air bleeding use.