Auxiliary heater

Chapter overview

• Supplementary heating
  1
• 1 Hydronic D5WS auxiliary coolant heater
  1
• 1.1 General information
  1
• 1.2 Safety precautions
  1
• 1.3 Rules for cleanliness and important notes
  2
• 1.4 General notes
  3
• 1.5 Overview of fitting locations – Hydronic D5WS auxiliary coolant heater
  3
• 1.6 Assembly overview – Hydronic D5WS auxiliary coolant heater
  4
• 1.7 Notes on operation of Hydronic D5WS auxiliary coolant heater
  4
• 1.8 Control and safety devices of Hydronic D5WS auxiliary coolant heater
  5
• 1.9 Technical data of Hydronic D5WS auxiliary coolant heater
  6
• 1.10 Type and configuration of the Hydronic D5WS auxiliary coolant heater
  8
• 1.11 Technical data of the coolant circulation pump V50
  9
• 2 Pre-selection clock E111 of Hydronic D5WS auxiliary coolant heater
  10
• 2.1 Operation and function of pre-selection clock E111
  10
• 2.2 Setting, activating and deactivating pre-selected times
  12
• 2.3 Removing and installing pre-selection clock E111
  13
• 2.4 Diagnosis functions of the pre-selection clock E111
  14
• 2.5 Reading event memory using pre-selection clock E111
  14
• 2.6 Table of fault codes in event memory (fault codes 000-050)
  15
• 2.7 Table of fault codes in event memory (fault codes 051-091)
  19
• 2.8 Unlocking control unit and clearing event memory
  22
• 3 Maintenance work on Hydronic D5WS auxiliary coolant heater
  23
• 3.1 Safety precautions
  23
• 3.2 General information
  24
• 3.3 Assembly overview - heater unit of Hydronic D5WS auxiliary coolant heater
  24
• 3.4 Removing and installing heater unit with bracket
  27
• 3.5 Removing and installing heater unit bracket
  29
• 3.6 Removing and installing seal (sealing foil)
  30
• 3.7 Removing and installing exhaust pipe
  31
• 3.8 Removing and installing blower cover
  31
• 3.9 Removing and installing housing cover
  32
• 3.10 Removing and installing auxiliary heater control unit J364
  33
• 3.11 Removing and installing glow plug for heater Q9
  34
• 3.12 Removing and installing fuel connection
  36
• 3.13 Removing and installing flame monitor G64
  37
• 3.14 Checking flame monitor G64
  40
• 3.17 Removing and installing combustion air blower V6
  42
• 3.18 Checking rotation speed of combustion air blower V6
  44
• 3.19 Removing and installing flame protection mesh
  44
• 3.20 Removing and installing combustion chamber
  45
• 3.21 Removing and installing heat exchanger
  47
• 3.22 Removing and installing remote control receiver for auxiliary coolant heater R149
  48
• 4 Coolant circuit with auxiliary/supplementary heater
  49
• 4.1 Coolant hose schematic diagram
  49
• 5 Fuel supply to Hydronic D5WS auxiliary coolant heater
  57
• 5.1 Safety precautions
  57
• 5.2 Rules for cleanliness
  57
• 5.3 Assembly overview - fuel take-off
  57
• 5.4 Removing and installing metering pump V54 for Hydronic D5WS
  58
• 5.5 Removing and installing strainer of metering pump V54
  59
• 5.6 Prerequisites for checking/measuring fuel delivery rate
  60
• 5.7 Checking/measuring fuel delivery rate of Hydronic and »D5WS« auxiliary coolant heater
  60
• 6 Auxiliary air heaters Airtronic D2 and D4S
  62
• 6.1 General information
  62
• 6.2 Safety precautions
  62
• 6.3 Rules for cleanliness
  63
• 6.4 Overview of auxiliary air heaters installed in vehicle
  63
• 6.5 Working principles of Airtronic auxiliary air heaters D2 and D4S
  65
• 6.6 Control and safety devices of auxiliary air heaters Airtronic D2 and D4S
  66
• 6.7 Fitting location and principle of operation of Airtronic D2 auxiliary air heater
  67
• 6.8 Fitting location and principle of operation of Airtronic D4S auxiliary air heater
  69
• 6.9 Technical data of Airtronic D2 auxiliary air heater
  70
• 6.10 Technical data of Airtronic D4S auxiliary air heater
  72
• 6.11 Type and version of auxiliary air heaters Airtronic D2 and D4S
  74
• 6.12 Synchronising remote control
  78
• 6.13 Setting or changing operating time of auxiliary heater
  79
• 6.14 Using remote control
  80
• 7.1 General information
  81
• 7.4 Removing and installing pre-selection clock E111 with temperature regulator
  84
• 7.5 Pin assignment on rear of pre-selection clock E111 with temperature regulator
  85
• 7.6 Diagnosis functions of the pre-selection clock E111
  86
• 7.7 Reading event memory using pre-selection clock E111
  86
• 7.10 Unlocking control unit and clearing event memory
  93
• 8.1 General information
  95
• 8.4 Removing and installing pre-selection clock E111 with temperature regulator
  98
• 8.5 Pin assignment on rear of pre-selection clock E111 with temperature regulator
  99
• 8.6 Diagnosis functions of the pre-selection clock E111
  100
• 8.7 Reading and erasing event memory using pre-selection clock E111
  101
• 8.10 Disabling control unit lock
  108
• 9 Maintenance work on auxiliary air heaters Airtronic D2 and D4S
  110
• 9.1 Safety precautions
  110
• 9.2 General information
  111
• 9.3 Assembly overview - heater unit of Airtronic D2 auxiliary air heater
  111
• 9.4 Assembly overview - heater unit of Airtronic D4S auxiliary air heater
  113
• 9.5 Overview of available versions of combustion air blower V6
  114
• 9.6 Removing and installing heater unit of Airtronic D2 auxiliary air heater
  114
• 9.9 Removing and installing exhaust pipe of Airtronic D2 auxiliary air heater
  121
• 9.10 Removing and installing exhaust pipe of Airtronic D4S auxiliary air heater
  121
• 9.14 Removing and installing air duct of Airtronic D4S auxiliary air heater
  125
• 9.16 Working principles of auxiliary heater control unit J364
  127
• 9.17 Removing and installing auxiliary heater control unit J364
  128
• 9.18 Removing and installing glow plug for heater Q9
  129
• 9.19 Removing and installing flame protection mesh
  131
• 9.21 Checking flame monitor G64 and overheating sensor G189
  136
• 9.22 Removing and installing combustion air blower V6 (combination blower)
  137
• 9.23 Removing and installing heat exchanger
  140
• 9.24 Removing and installing combustion chamber
  142
• 9.25 Ambient temperature sender 2 G249
  145
• 10 Fuel supply to Airtronic auxiliary air heaters D2 and D4S
  146
• 10.1 Safety precautions
  146
• 10.2 Rules for cleanliness
  146
• 10.3 Assembly overview - fuel take-off
  146
• 10.4 Removing and installing metering pump V54
  147
• 10.5 Removing and installing strainer of metering pump V54
  150
• 10.6 Prerequisites for checking/measuring fuel delivery rate
  150