FITTING YOUR EM SERIES BOV
Remove the OEM diverter valve
Identify turbocharger location
Remove the electronic plug from the OEM diverter valve and
unscrew the three screws in an anti-clockwise direction,
completely remove and safely store the original mounting
screws. The valve will likely want to fall off the mounting flange
as you unscrew the last screw, ensure you do not drop the OEM
valve as permanent damage may occur to the plastic.
Identify the location of the turbocharger assembly, this is usually
located close to the exhaust side of the engine for a typical in-
line engine, for a v configuration engine, following the path of the
exhaust immediately out of the head can assist you in locating
the turbocharger assembly.
If the turbocharger cannot be located, seek assistance from your
Observe factory plumb back recirculation path
required if your valve has a flat)
Cosmetic engine covers may be required to be removed
prior to the turbocharger assembly being visible.
If your BOV has a flat featured on the flange (indicated in yellow
below), this flat is to indicate the orientation of the plumb back
ports relative to the factory plumb back recirculation path. This is
to ensure maximum recirculation performance.
The turbocharger assembly may require the vehicle to be
raised on a hoist or jacked up and secured using vehicle
jack stands, ensure your safety is not compromised.
Identify OEM diverter valve location
The OEM electronic diverter valve is usually located on the
compressor cover of the turbocharger, the diverter valve
generally is mounted with 3 or 2 bolts.
On some vehicle applications, this diverter valve is mounted on
the intercooler, or the charge pipe between the turbocharger
compressor outlet and the engine throttle body.
If the diverter valve cannot be located, seek assistance from your
It may be required to remove auxiliary components to
access the diverter valve, ensure you consult your local
specialist or a service manual for correct disassembly
Usually black plastic