To remove

Remove the cover over the engine harness connector.

Fig 1: Illustration For Steps 1 To 2
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Unplug the upper multi-connector.
Unplug the two pin connector from the control valve.

Fig 2: Illustration For Steps 3 To 7
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Unscrew both retaining nuts and loosen the windscreen cover weatherstrip.
Carefully pull out the mounting plate and unhook it from edge of the bulkhead. Lift up the unit.
Unplug the lower multi-connector.
Mark the vacuum hoses and detach them from the valve.
Lift out the holder and drill away the pop rivets.

Fig 3: Illustration For Step 8
Courtesy of SAAB-SCANIA OF AMERICA, INC.