Heating, air conditioner

Chapter overview

• Heating
  1
• 1 Repairing heating system
  1
• 1.1 Passenger compartment heating
  1
• 1.2 Removing fresh air blower V2
  2
• 1.3 Removing and installing fresh air blower series resistor with overheating fuse N24
  3
• 1.4 Removing and installing dust and pollen filter
  4
• 1.5 Removing vents
  5
• 1.6 Removing and installing rear footwell air duct
  7
• 1.7 Removing and installing controls for heated and fresh air
  8
• 1.8 Connectors on controls for heated and fresh air
  9
• 1.9 Removing and installing flexible shafts
  10
• 1.10 Checking ventilation
  11
• 2 Removing and installing heater unit
  12
• 3 Dismantling and assembling heater unit
  14
• 3.1 Removing and installing air distribution flap actuator
  15
• 3.2 Removing and installing temperature flap actuator
  16
• 3.3 Removing and installing fresh air/air recirculation flap control motor V154
  17
• 3.4 Assembly overview - heat exchanger
  18
• 3.5 Removing and installing heat exchanger
  19
• 3.6 Removing and installing auxiliary air heater element Z35
  21
• 3.7 Checking auxiliary air heater element Z35
  23
• Air conditioning system
  27
• 1.1 Notes concerning odours in air conditioned vehicles
  27
• 2 Air conditioning system with manual regulation “Climatic”
  28
• 2.1 Air conditioning and heating - passenger compartment
  28
• 2.2 Removing and installing heating and air conditioning controls, Climatic
  30
• 2.3 Connections on controls for heating and air conditioning, Climatic
  31
• 2.4 Removing and installing flexible shaft
  32
• 2.5 Removing and installing temperature flap control motor V68
  33
• 2.6 Climatic - engine compartment
  34
• 2.7 Checking water drain valve
  35
• 2.8 Checking high-pressure safety valve on air conditioner compressor
  35
• 2.9 Removing and installing high-pressure sender G65
  36
• 3 Automatic air conditioning system “Climatronic”
  37
• 3.1 Procedure when checking and adjusting components
  37
• 3.4 Connectors on Climatronic control unit J255
  40
• 3.5 Climatronic - passenger compartment
  41
• 3.6 Removing and installing footwell vent temperature sender G192
  43
• 3.7 Removing and installing evaporator out-flow temperature sender G263
  44
• 3.8 Removing and installing centre vent temperature sender G191
  44
• 3.9 Removing and installing sunlight penetration photosensor G107
  45
• 3.10 Removing and installing fresh air intake duct temperature sensor G89
  45
• 3.11 Removing and installing fresh air blower control unit J126
  46
• 3.12 Making adapter cable for control motor actuation up to WEEK 49/2003
  47
• 3.13 Making adapter cable for control motor actuation from WEEK 50/2003
  47
• 3.14 Removing and installing air flow flap control motor V71
  48
• 3.15 Removing and installing centre flap control motor V70
  49
• 3.17 Climatronic - engine compartment
  52
• 4 Bracket for air conditioner compressor
  54
• 4.4 Removing and installing poly V-belt pulley or air conditioning system magnetic clutch N25
  60
• 5.2 Removing and installing heater and air conditioning unit
  63
• 5.3 Dismantling and assembling heater and air conditioner unit “Climatic”
  65
• 5.4 Dismantling and assembling heater and air conditioning unit, “Climatronic”
  67
• 5.5 Renewing refrigerant circuit components
  68
• 5.7 Removing dryer cartridge
  73
• 5.8 Dismantling and assembling evaporator housing
  77
• 5.9 Expansion valve, function and removal
  78
• 5.10 Removing and installing condenser
  79
• 5.11 Quick-release coupling
  81
• 5.12 Removing and installing air conditioner compressor
  83
• 5.13 Notes on installing air conditioner compressor
  88
• 6 Capacities
  90
• 6.1 Refrigerant R134a
  90
• 6.2 Refrigerant oil
  90