Necessary preliminary work

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Read out fault memory in DME control unit
Switch off ignition
Remove right INTERCOOLER
Release holder for electropneumatic pressure converter (EPPC) and carefully press to one side

NOTE: Solenoid valve (4) controls the inlet adjustment unit.
Solenoid valve (2) controls the exhaust adjustment unit.

Unlock plug connections of solenoid valves (2 and 4) and disconnect.

Installation note:

Plug connections must snap audibly into place!

Fig 1: Identifying Solenoid Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws (1 and 3).

Tightening torque 11 36 3AZ .

Pull out solenoid valves (2 and 4).

Installation note: