Open the pressure valve on the compressor (the front
valve).
Drain the coolant.
Warning: Note safety precautions (64 50 009).
When installing:
a) Evacuate (refill) the system (64 50 009).
b) Check oil level in compressor (64 52 509).
Remove lower center left instrument panel trim (51 45 190).
Remove lower center right instrument panel trim (51 45 200).
Unscrew blower cover at left and right.
Remove screws holding side section.


Siehe auch 64 50 009
Siehe auch 64 52 509

51020001 - click to zoom
 
Take off evaporator cover.

51020002 - click to zoom
 
Carefully pull out the temperature sensor.

51020003 - click to zoom
 
On Automatic cars:
Remove the selector lever screen.

51020004 - click to zoom
 
Unscrew the fresh air grille cover.

51020005 - click to zoom
 
Pull off the cable connections.
When installing:
Cables on wiper switch:
black-yellow53 a
black-grey53 b
black-violet53
Cables on cigar lighter:
brown-
red+

51020006 - click to zoom
 
Unscrew pipe unions 1 and 2.
When installing:
a) Do not re-use copper sealing rings.
b) Apply low temperature oil to threads to prevent
later seizure.
c) Insulate pipe union 2 with Not-Tape sealing
strip to prevent condensate formation.

51020007 - click to zoom
 
Unscrew and lift out the retaining bracket.

51020008 - click to zoom
 
Unscrew the evaporator at the rear.

51020009 - click to zoom
 
Remove evaporator complete with spacer.
Disconnect the cables.

51020010 - click to zoom
 
When installing: Pierce the hole for condensate drainage
again, to remove any blockage.

51020011 - click to zoom