Heating, air conditioning

Chapter overview

• Heating
  1
• 1 Repairing heating system
  1
• 1.1 Passenger compartment heating
  1
• 1.2 Removing and installing fresh air blower V2
  2
• 1.3 Removing and installing activated charcoal filter or dust and pollen filter
  3
• 1.4 Removing leaf screen
  4
• 1.5 Removing centre vents
  5
• 1.6 Removing and installing vent on front passenger side
  6
• 1.7 Removing and installing vent on driver side
  6
• 1.8 Removing footwell vent
  7
• 1.9 Removing and installing controls for fresh and heated air
  8
• 1.10 Notes on mapped cooling, engine code ARR
  10
• 1.11 Mapped cooling layout, engine code ARR
  11
• 1.12 Mapped cooling components in engine compartment, engine code ARR
  13
• 1.13 Connection diagram for mapped cooling vacuum hoses, engine code ARR
  14
• 1.14 Checking ventilation
  14
• 1.15 Checking auxiliary air heater element Z35
  15
• 1.16 Removing auxiliary heating heater element contact switch F268
  19
• 2 Heater unit
  21
• 2.1 Removing and installing heater unit
  21
• 3 Dismantling and assembling heater unit
  24
• 3.1 Dismantling heater unit
  25
• 4 Dismantling and assembling heated air and fresh air controls
  28
• 5 Installing and adjusting cables
  29
• 5.1 Adjusting cable at temperature flap
  30
• 5.2 Adjusting cable at footwell/defroster flap
  30
• 5.3 Adjusting cable at centre flap
  30
• Air conditioning system
  32
• 2 Air conditioning system with manual controls
  33
• 2.1 Air conditioning and heating - passenger compartment
  33
• 2.2 Removing and installing fresh air blower V2
  34
• 2.3 Removing and installing heating and air conditioning controls
  35
• 2.4 Dismantling and assembling heating and air conditioning controls
  37
• 2.5 Installing and adjusting heating and air conditioning cables
  38
• 2.6 Adjusting cable at temperature flap
  39
• 2.7 Adjusting cable at footwell/defroster flap
  40
• 2.8 Adjusting cable at centre flap
  40
• 2.9 Air conditioning system and heating - engine compartment, vehicles ▸ 02.00
  41
• 2.10 Checking water drain valve
  43
• 2.11 Removing high-pressure sender G65
  44
• 2.13 Air conditioning system and heating - engine compartment, vehicles ▸ 03.00
  44
• 2.14 Air conditioning system and heating - engine compartment, engine codes ANY and AYZ
  47
• 2.15 Checking water drain valve
  49
• 2.16 Removing high-pressure sender G65
  49
• 2.17 Checking coolant temperature sender G62
  50
• 2.18 Repairing Sanden magnetic clutch for air conditioning system N25
  51
• 3 Climatronic air conditioning with automatic regulation
  56
• 3.1 Procedure for checking and adjusting components
  56
• 3.2 Function of operating and display unit for Climatronic air conditioning system E87
  56
• 3.3 Connectors on Climatronic control unit J255
  58
• 3.4 Climatronic - passenger compartment
  60
• 3.5 Removing and installing footwell vent temperature sender G192
  64
• 3.6 Removing and installing sunlight penetration photosensor G107
  65
• 3.7 Removing and installing fresh air blower control unit J126
  65
• 3.8 Removing and installing fresh air blower V2
  65
• 3.10 Removing and installing air flow flap control motor V71
  67
• 3.11 Removing and installing temperature flap control motor V68
  68
• 3.12 Removing and installing centre flap control motor V70
  69
• 3.13 Removing and installing footwell and defroster flap control motor V85
  70
• 3.14 Climatronic - engine compartment
  70
• 3.15 Removing high-pressure sender G65
  72
• 3.16 Checking water drain valve
  73
• 3.17 Removing ambient temperature sensor G17
  73
• 4 Bracket for air conditioner compressor
  74
• 4.1 Removing and installing air conditioner compressor bracket, engine code AHT
  74
• 4.4 Removing and installing air conditioner compressor bracket, engine code AMF
  80
• 4.6 Removing and installing air conditioner compressor bracket, engine code ARR
  84
• 4.7 Removing and installing air conditioner compressor bracket, engine code AVY
  86
• 5.1 Renewing refrigerant circuit components, vehicles ▸ 02.00
  89
• 5.2 Renewing refrigerant circuit components, vehicles 03.00 ▸
  94
• 5.3 Renewing components of refrigerant system, engine codes ANY and AYZ
  98
• 5.4 Removing receiver with dryer
  101
• 5.5 Evacuating and charging valve, low-pressure side
  103
• 5.6 Evacuating and charging valve, high-pressure side
  105
• 5.7 Quick release coupling
  106
• 5.10 Removing and installing air conditioner compressor, engine codes ARR
  114
• 5.11 Notes on installing air conditioner compressor
  117
• 5.12 Removing and installing heater and air conditioning unit
  118
• 5.13 Dismantling and assembling evaporator housing
  122
• 5.14 Expansion valve, function and removal
  123
• 5.15 Expansion valve - function and removing, engine codes ANY, ARR, AVY and AYZ
  125
• 5.16 Removing and installing condenser, vehicles ▸ 02.00
  128
• 5.17 Removing and installing condenser, vehicles 03.00 ▸
  130
• 5.18 Removing and installing condenser engine codes ANY, ARR, AVY and AYZ
  132
• 6 Capacities
  135
• 6.1 Refrigerant R134a
  135
• 6.2 Refrigerant oil
  135