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Climatronic - Air conditioner with automatic regulation - Part 2 > < Safety measures when working on vehicles with air conditioning and when using refrigerant R 134a

Superb

Air conditioner - Passenger compartment
   
Air conditioner - Passenger compartment
  Note
The parts marked with an * can only be repaired in a service centre as the refrigerant must be drained off using a service position.
1 - Retaining clip
q   press up with screwdriver
2 - Dust and pollen filter
q   removing and installing → Chapter
3 - Inlet connection
4 - Defroster vent
5 - Side window vent
q   removing → Chapter
6 - Flow vent
q   Removing vent, passenger or driver side → Chapter
q   Removing the centre vent → Chapter
7 - Control for heating and air conditioning system
q   removing and installing → Chapter
q   disassembling and assembling → Chapter
8 - Heating element for air auxiliary heating -Z35-
q   not fitted to all vehicles
q   removing and installing → Fig.
q   check → Current flow diagrams and Fitting locations
9 - Cross member - dash panel
q   When installing pay attention to the fitting instruction for the fixing screw → Fig.
10 - Intermediate piece for defrost
q   replace:
–  Remove the dash panel → Body Work → Rep. Gr.70.
11 - Fresh air flap and re-circulating air flap control motor -V154-
q   removing and installing → Chapter
12 - Outside temperature switch -F38-
q   switches off the Magnetic coupling - N25- if the ambient temperature is too low (switch value 5°C)
q   replace:
–  Remove storage compartment on passenger side → Body Work → Rep. Gr.68.
–  Grab the ambient temperature switch by hand from below behind the air conditioner.
–  Pull out ambient temperature switch.
13 - Gasket
q   replace if damaged
q   replace:
–  Removing Ambient temperature switch - F38-.
–  Removing dust and pollen filter
–  Position fresh/re-circulating air flap in end position “Fresh air”.
–  Close the fresh air intake duct with a cleaning cloth.
–  Pull out gasket by hand by reaching through the fresh air intake duct.
14 - Water drain funnel
q   removing and installing → Chapter
15 - Air conditioning unit*
q   removing → Chapter
q   Disassembling and assembling the evaporator housing → Chapter
16 - Fresh air blower -V2-
q   removing and installing → Fig.
17 - Series resistor for fresh air blower with overheating fuse -N24-
q   replace → Fig.
18 - Centre trim
19 - Contol trim
q   unclip with screwdriver
20 - Control cables
q   installing → Chapter
21 - Heat exchanger*
q   refill refrigerant after replacing
q   Removing and installing heat exchanger:
–  Remove air conditioning unit.
22 - Intermediate piece
23 - Connecting rubber
24 - Front air deflector
25 - Rear air deflector
q   with connection fitting for refrigerator box - centre console -arrow-
26 - Flow vent - centre part
q   removing and installing → Body Work → Rep. Gr.68
27 - Nozzle for rear duct
q   removing and installing → Chapter
28 - Left rear duct
29 - Bottom connecting piece
30 - Top connecting piece
31 - Footwell vent
q   replace:
–  Remove the dash panel → Body Work → Rep. Gr.70.
–  Removing cross member - dash panel.
–  Removing top connecting pieces.
–  Carefully raise air conditioning unit.
–  Pull out the footwell vent.
32 - Fixing screw for left cross member - dash panel and side member
q   When installing pay attention to the fitting instruction for the fixing screw → Fig.
33 - Relay
q   Radiator fan relay -J26-
q   Radiator fan relay V7 and V35 - Stage 1 -J279-
q   Radiator fan relay V7 - stage 2 -J280-
q   Radiator fan run-on relay - J397- (for vehicles with a turbo-diesel engine)
q   Fitting locations → Current flow diagrams and Fitting locations
34 - Control unit for air conditioning system deactivation -J314-
q   Fitting location → Current flow diagrams and Fitting locations
35 - Dash panel
q   removing and installing → Body Work → Rep. Gr.70

   
Replacing Fresh air blower with overheating fuse series resistor -N24-
–  Switch off the ignition and all electrical components.
–  Remove storage compartment on passenger side → Body Work → Rep. Gr.68.
–  Disconnect plug and release screw -arrow-.
–  Before installing seal space between the series resistor -1- and the air duct with a sealing compound -D 176 001 A3 -.
  N87-0328
Removing and installing fresh air blower - V2-
–  Switch off the ignition and all electrical components.
–  Remove storage compartment on passenger side → Body Work → Rep. Gr.68.
–  Unplug connector -1-.
–  Release 3 screws -arrows- and pull out fresh air blower -2- downwards.
  N87-0332
Installation instruction for the fixing screw on left cross member - dash panel and side member
To avoid damaging the dash panel wiring loom -2- make sure the protective cap -1- is fitted to the top fixing screw on the cross member - dash panel -4- and left side member -3-.
  N87-0299
Removing heating element for additional air heating -Z35-
–  Remove air conditioning unit → Chapter.
–  Remove heat exchanger.
–  Release earth lead.
–  Disconnect the plug connection from the supply line for the heating element for additional air heating -Z35-.
–  Press heating element for additional air heating - Z35- out of the fixture in the direction of the arrow and pull out upwards together with the supply line.
  N80-0354

Climatronic - Air conditioner with automatic regulation - Part 2 > < Safety measures when working on vehicles with air conditioning and when using refrigerant R 134a