Heating, air conditioner

Kapitelübersicht

• Technical data
  1
• 1 Safety information
  1
• 1.1 Safety precautions when working on air conditioning systems
  1
• 1.2 Safety precautions when handling refrigerants
  1
• 1.3 Safety measures when working on vehicles with a start/stop system
  2
• 1.4 Safety precautions when working on the cooling system
  2
• 2 General information
  3
• 2.1 Notes concerning odours in air conditioned vehicles
  3
• 2.2 Notes for vehicles with start-stop system
  3
• 2.3 Type plates
  4
• 3 Repair notes
  5
• 3.1 Working on refrigerant circuit
  5
• 3.2 General repair instructions
  5
• 3.3 Refrigerant circuit seals
  5
• 3.4 Notes on control motors
  6
• 4 Technical data
  12
• 4.1 Refrigerant capacity
  12
• 4.2 Refrigerant oil
  12
• 4.3 Oil distribution
  12
• Heating
  14
• 1 Heating
  14
• Air conditioning system
  15
• 1 Overview of fitting locations - air conditioning system
  15
• 1.1 Overview of fitting locations - components not located in passenger compartment
  15
• 2 Refrigerant circuit
  24
• 2.1 System overview - refrigerant circuit
  24
• 2.2 Assembly overview - condenser
  26
• 2.3 Removing and installing high-pressure sender G65
  28
• 2.4 Removing and installing expansion valve
  30
• 2.5 Removing and installing condenser
  34
• 2.6 Removing and installing desiccant bag or cartridge
  36
• 2.7 Removing and installing evacuating and charging valves on low and high-pressure side
  43
• 3 Air conditioner compressor
  46
• 3.1 Assembly overview - drive unit of air conditioner compressor
  46
• 3.2 Assembly overview - pulley
  47
• 3.3 Removing air conditioning compressor from and installing on bracket
  50
• 3.4 Removing and installing air conditioner compressor
  52
• 3.5 Checking high-pressure safety valve on air conditioner compressor
  57
• 3.6 Removing and installing pulley
  58
• 4 Control motors
  61
• 4.1 Overview of fitting locations - front control motors
  61
• 4.2 Removing and installing temperature flap control motor V68
  66
• 4.3 Removing and installing defroster flap control motor V107
  70
• 4.4 Removing and installing air recirculation flap control motor V113
  71
• 4.5 Removing and installing left temperature flap control motor V158
  75
• 4.6 Removing and installing right temperature flap control motor V159
  79
• 4.7 Removing and installing fresh air/air recirculation, air flow flap control motor V425
  82
• 4.8 Removing and installing front air distribution flap control motor V426
  85
• 4.9 Removing and installing air distribution flap control motor V428
  86
• 4.10 Removing and installing air distribution flap actuator
  87
• 4.11 Removing and installing fresh air/air recirculation, air flow flap actuator
  88
• 5 Front heater and air conditioning unit
  90
• 5.1 Assembly overview - heater and air conditioning unit
  90
• 5.2 Assembly overview - evaporator housing
  95
• 5.3 Removing and installing heater and air conditioning unit
  96
• 5.4 Removing and installing evaporator
  102
• 5.5 Dismantling and assembling evaporator housing
  103
• 5.6 Removing and installing air distribution housing
  104
• 5.7 Removing and installing heat exchanger
  106
• 5.8 Removing and installing dust and pollen filter
  110
• 5.9 Checking auxiliary air heater element Z35
  114
• 5.10 Removing and installing auxiliary air heater element Z35
  115
• 5.11 Removing and installing fresh air blower V2
  116
• 5.12 Removing and installing fresh air blower control unit J126
  119
• 5.13 Removing and installing fresh air blower series resistor with overheating fuse N24
  120
• 5.14 Removing and installing evaporator output temperature sender G263
  120
• 5.15 Checking condensation drain
  121
• 5.16 Removing and installing glove box cooling
  123
• 5.17 Removing and installing coolant pipes on heat exchanger
  123
• 5.18 Removing and installing flexible shaft for air distribution
  125
• 5.19 Removing and installing baffle plate
  126
• 6 Air duct
  127
• 6.1 Assembly overview - air duct and air distribution in passenger compartment
  127
• 6.2 Removing and installing rear footwell vent
  128
• 6.3 Removing and installing driver side footwell vents
  129
• 6.4 Removing and installing front passenger side footwell vents
  130
• 6.5 Checking forced ventilation for passenger compartment
  131
• 6.6 Removing and installing forced ventilation for passenger compartment
  131
• 6.7 Removing and installing fresh air intake
  132
• 6.8 Removing and installing air duct for defroster vent
  135
• 6.9 Removing and installing air duct for centre vent
  135
• 7 Operating and display unit
  136
• 7.1 Overview of fitting locations - operating and display unit
  136
• 7.2 Removing and installing operating and display unit
  139
• 8 Other controlling and regulating components
  142
• 8.1 Removing and installing sunlight penetration photosensor G107
  142
• 8.2 Principle of operation of air quality sensor G238
  143
• 8.3 Removing and installing air quality sensor G238
  144
• 8.4 Ambient temperature sensor G17
  146
• 8.5 Removing and installing left vent temperature sender G150
  146
• 8.6 Removing and installing right vent temperature sender G151
  147
• 8.7 Removing and installing centre vent temperature sender G191
  148
• 8.8 Removing and installing footwell vent temperature sender G192
  149
• 8.9 Removing and installing left footwell vent temperature sender G261
  149
• 8.10 Removing and installing right footwell vent temperature sender G262
  150