The Check Control system monitors functions in the vehicle and notifies you of malfunctions in the monitored systems.
A Check Control message is displayed as a combination of indicator or warning lights and text messages in the instrument cluster and in the Head-up Display.
In addition, an acoustic signal may sound and a text message may appear on the Control Display.
BMW X3 Service & Repair Manual > Integrated suspension systems: Connection
Connection Mechanical tool
NOTE:
(test connection) For leakage check on the air suspension strut in water bath
SI number
01 14 98 (343)
Connector Mechanical tool
NOTE:
(Connection piece with 300 mm hose) For checking tyre pressure of pressure
accumulator in self-levelling suspension
...