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 measures when working on vehicles with a start/stop system
  1
• 1.4 Safety precautions when working on the cooling system
  2
• 1.5 Safety precautions when handling refrigerants
  2
• 1.6 Safety precautions for working on vehicles with auxiliary/supplementary heater
  3
• 1.7 Safety precautions when working on SCR system
  4
• 2 Identification
  6
• 2.1 Identification of heater and air conditioning unit
  6
• 3 General information
  8
• 3.1 Type plates
  8
• 4 Repair instructions
  11
• 4.1 Rules for cleanliness
  11
• 4.2 General information
  11
• 4.3 General repair instructions
  11
• 4.4 Contact corrosion
  12
• 4.5 Nuts and bolts
  12
• 4.6 Routing and attachment of lines
  12
• 4.7 Fitting radiators, coolers and condensers
  13
• 4.8 Working on refrigerant circuit
  13
• 4.9 Refrigerant circuit seals
  14
• 5 Technical data
  16
• 5.1 Refrigerant capacity
  16
• 5.2 Refrigerant oil capacities
  16
• 5.3 Oil distribution
  17
• Heating
  18
• 1 Heating
  18
• Air conditioning system
  19
• 1 Overview of fitting locations - air conditioning system
  19
• 1.1 Overview of fitting locations - components not located in passenger compartment
  19
• 2 Refrigerant circuit
  26
• 2.1 System overview - refrigerant circuit
  26
• 2.2 Assembly overview – condenser
  28
• 2.3 Removing and installing refrigerant circuit pressure sender G805
  30
• 2.4 Removing and installing refrigerant line with internal heat exchanger
  31
• 2.5 Removing and installing expansion valve
  35
• 2.6 Removing and installing condenser
  39
• 2.7 Removing and installing desiccant bag or cartridge
  42
• 2.9 Commissioning air conditioning system after filling refrigerant circuit
  54
• 2.13 Removing and installing damper weight for refrigerant line, low-pressure side
  65
• 2.14 Commissioning air conditioning system after filling refrigerant circuit
  65
• 3 Air conditioner compressor
  67
• 3.1 Assembly overview – drive unit of air conditioner compressor
  67
• 3.2 Assembly overview - pulley
  71
• 3.3 Removing air conditioning compressor from and installing on bracket
  75
• 3.4 Removing and installing air conditioner compressor
  77
• 3.5 Checking high-pressure safety valve on air conditioner compressor
  82
• 3.6 Removing and installing pulley
  83
• 4 Control motors
  89
• 4.1 Overview of fitting locations – control motors at front
  89
• 4.2 Removing and installing temperature flap control motor V68
  93
• 4.3 Removing and installing defroster flap control motor V107
  95
• 4.4 Removing and installing air recirculation flap control motor V113
  96
• 4.5 Removing and installing left temperature flap control motor V158
  98
• 4.6 Removing and installing right temperature flap control motor V159
  100
• 4.7 Removing and installing fresh air/air recirculation, air flow flap control motor V425
  101
• 4.8 Removing and installing front air distribution flap control motor V426
  103
• 4.9 Removing and installing air distribution flap control motor V428
  104
• 4.10 Removing and installing air distribution flap actuator
  106
• 5 Front heater and air conditioning unit
  113
• 5.1 Assembly overview - flaps and partitions in air distribution housing
  113
• 5.2 Assembly overview – heater and air conditioning unit
  115
• 5.3 Assembly overview – evaporator housing
  117
• 5.4 Removing and installing evaporator
  117
• 5.5 Checking auxiliary air heater element Z35
  118
• 5.6 Removing and installing auxiliary air heater element Z35
  119
• 5.7 Removing and installing heater and air conditioning unit
  122
• 5.8 Removing and installing holder for heater and air conditioning unit
  128
• 5.9 Dismantling and assembling heater and air conditioning unit
  129
• 5.10 Removing and installing air distribution housing
  129
• 5.11 Removing and installing dust and pollen filter
  130
• 5.12 Removing and installing fresh air blower V2
  135
• 5.13 Removing and installing fresh air blower control unit J126
  137
• 5.14 Removing and installing heat exchanger
  139
• 5.15 Removing and installing coolant pipes on heat exchanger
  161
• 5.16 Removing and installing evaporator temperature sensor G308
  164
• 5.17 Removing and installing condensation drain
  166
• 5.18 Checking condensation drain
  170
• 5.19 Removing and installing baffle plate
  170
• 6 Air duct
  171
• 6.1 Assembly overview – air duct and air distribution in passenger compartment
  171
• 6.2 Removing and installing driver side footwell vents
  172
• 6.3 Removing and installing front passenger side footwell vents
  173
• 6.4 Removing and installing rear footwell vent
  175
• 6.5 Removing and installing air ducts
  176
• 6.6 Removing and installing forced ventilation for passenger compartment
  177
• 6.7 Checking forced ventilation for passenger compartment
  178
• 6.8 Removing and installing fresh air intake
  179
• 6.9 Removing and installing cover for fresh air intake
  180
• 6.10 Removing and installing air intake duct
  181
• 6.11 Removing and installing air duct for defroster vent
  181
• 6.12 Removing and installing air duct for centre vent
  182
• 7 Operating and display unit
  183
• 7.1 Overview of operating and display unit
  183
• 7.2 Removing and installing operating and display unit
  187
• 8 Other controlling and regulating components
  190
• 8.1 Removing and installing sunlight penetration photosensor G107
  190
• 8.2 Working principles of air quality sensor G238
  191
• 8.3 Removing and installing air quality sensor G238
  192
• 8.4 Removing and installing ambient temperature sensor G17
  193
• 8.5 Removing and installing humidity sender for air conditioning system G260
  193
• 8.6 Removing and installing left vent temperature sender G150
  194
• 8.7 Removing and installing right vent temperature sender G151
  195
• 8.8 Removing and installing footwell vent temperature sender G192
  197