Necessary preliminary work

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: