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#11
6th March 2020, 07:20 AM
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The electrical connection is for a solenoid which controls a valve to an air pocket inside the mount. The ECU controls the effective strength of the mount by switching on / off what is basically an air spring. There's an SSP on them somewhere - I'll see if I can find it.
The D4 actually has a separate computer just to control the active engine mounts 
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