Heating, air conditioning

Chapter overview

• Heating
  1
• 1 Repairing heating system
  1
• 1.1 Passenger compartment heating
  1
• 1.2 Removing and installing heater unit baffle plate
  3
• 1.3 Removing fresh air blower V2
  4
• 1.4 Removing and installing fresh air blower series resistor with overheating fuse N24
  4
• 1.5 Removing and installing dust and pollen filter
  5
• 1.6 Removing vents
  6
• 1.7 Removing and installing controls for heated and fresh air
  9
• 1.8 Connectors on controls for heated and fresh air
  10
• 1.9 Removing and installing flexible shaft for air distribution
  11
• 1.10 Removing and installing Bowden cable for temperature flap
  12
• 1.12 Removing and installing heat exchanger
  13
• 1.15 Checking ventilation
  20
• 1.16 Removing and installing inlet grilles
  20
• 1.17 Removing and installing heater unit
  21
• 2 Dismantling and assembling heater unit
  26
• 2.1 Assembly overview – heater unit
  26
• 2.2 Removing and installing air distribution housing
  28
• 2.3 Dismantling and assembling heater unit
  29
• 2.4 Removing and installing air distribution flap actuator
  29
• 2.5 Removing and installing temperature flap actuator
  30
• Air conditioning system
  31
• 1.1 Notes concerning odours in air conditioned vehicles
  31
• 2 Air conditioning system with manual controls “Climatic”
  32
• 2.1 Air conditioning and heating - passenger compartment
  32
• 2.3 Connectors on controls for heating and air conditioning “Climatic”
  36
• 2.4 Removing and installing flexible shaft for air distribution
  37
• 2.5 Checking condensation water drainage hose on heater and air conditioner unit
  38
• 2.6 Removing and installing air recirculation flap control motor V113
  38
• 2.7 Removing and installing temperature flap control motor V68
  39
• 2.8 Removing and installing footwell vent temperature sender G192
  42
• 2.9 Removing and installing centre vent temperature sender G191
  42
• 2.10 Ambient temperature sensor G17
  42
• 3 Air conditioning system with automatic regulation “Climatronic”
  44
• 3.1 Procedure for checking and adjusting components
  46
• 3.2 Function of operating and display unit for Climatronic air conditioning system E87
  46
• 3.4 Connectors on Climatronic control unit J255
  49
• 3.5 Climatronic - passenger compartment
  51
• 3.6 Indirect ventilation
  54
• 3.7 Assembly overview - evaporator housing
  57
• 3.8 Removing and installing fresh air blower control unit J126
  58
• 3.9 Removing and installing left footwell vent temperature sender G261
  59
• 3.10 Removing and installing right footwell vent temperature sender G262
  60
• 3.12 Ambient temperature sensor G17
  61
• 3.13 Function of air quality sensor G238
  61
• 3.14 Removing and installing air quality sensor G238
  63
• 3.17 Checking condensation water drainage hose on heater and air conditioner unit
  64
• 3.18 Renewing control motors for air conditioning regulation
  64
• 3.19 Removing and installing air recirculation flap control motor V113
  65
• 3.22 Removing and installing setting unit for fresh air and air recirculation flap and air flow flap
  69
• 3.23 Removing and installing defroster flap control motor V107
  70
• 3.24 Removing and installing left temperature flap control motor V158
  71
• 3.25 Removing and installing right temperature flap control motor V159
  73
• 3.26 Removing and installing central flap control motor V70
  74
• 3.27 Notes on control motors
  75
• 4 Removing and installing ancillary bracket for air conditioner compressor
  81
• 4.2 Engine codes: BCA, BUD
  83
• 4.3 Engine codes: BLG, BMY
  85
• 4.4 Engine codes: BAG, BKG, BLF, BLN, BLP and CAXA
  87
• 4.6 Engine codes: BGP, BGQ, BTK, CBTA and CBUA
  91
• 4.7 Engine codes: BUB, CBRA
  93
• 5.1 Testing equipment and tools
  97
• 5.2 Removing and installing heater and air conditioning unit
  98
• 5.3 Dismantling and assembling heater and air conditioner unit “Climatic”
  103
• 5.4 Dismantling and assembling heater and air conditioner unit “Climatronic”
  105
• 5.5 Renewing refrigerant circuit components
  107
• 5.6 Removing and installing high-pressure sender G65
  110
• 5.7 Removing and installing receiver with dryer
  110
• 5.8 Removing and installing receiver with drier, Modine
  113
• 5.9 Removing and installing air conditioner compressor
  115
• 5.10 Assembly overview - poly V-belt pulley (air conditioner compressor from “Denso”)
  118
• 5.12 Checking high-pressure safety valve on air conditioner compressor
  121
• 5.13 Expansion valve, function and removing
  121
• 5.14 Removing and installing evaporator
  124
• 5.15 Removing and installing condenser
  124
• 5.16 Notes on installing air conditioner compressor
  127
• 6 Capacities
  131
• 6.1 Capacities for refrigerant R134a
  131
• 6.2 Refrigerant oil
  131
• 6.3 Oil distribution
  131