Auxiliary heater

Chapter overview

• Technical data
  1
• 1 General information
  1
• 1.1 Rules for cleanliness when working on auxiliary coolant heater and fuel system
  1
• 2 Safety instructions
  2
• 2.1 Safety measures for working on vehicles with auxiliary coolant heaters
  2
• 2.2 Safety measures for working on vehicles with auxiliary air heaters
  2
• 3 Repair notes
  3
• 3.1 Notes on general repairs of vehicles with auxiliary coolant heaters
  3
• 3.2 Notes on general repairs of vehicles with auxiliary air heaters
  3
• Supplementary heating
  4
• 1 Fitting locations overview - auxiliary coolant heater Thermo Top Z/C
  4
• 2 Auxiliary coolant heater Thermo Top Z/C
  5
• 2.1 Fittings location overview - auxiliary coolant heater
  5
• 2.2 Dismantling and assembling auxiliary coolant heater
  7
• 2.3 Removing and installing auxiliary coolant heater
  9
• 2.4 Connector and pin assignment of auxiliary coolant heater
  10
• 2.5 Removing and installing exhaust system, vehicles ► 2010
  12
• 2.6 Removing and installing exhaust system, vehicles 2010 ►
  12
• 2.7 Removing and installing circulation pump V55 , vehicles ► 2010
  13
• 2.8 Removing and installing circulation pump V55 , vehicles 2010 ►
  14
• 2.9 Removing and installing combustion air blower V6
  15
• 2.10 Removing and installing combustion chamber with combustion tube
  15
• 2.11 Removing and installing glow plug for heater Q9 with flame monitor, vehicles up to 2010
  17
• 2.12 Removing and installing glow plug for heater Q9 with flame monitor, vehicles from 2010
  18
• 3 Coolant circuit with auxiliary coolant heater Thermo Top Z/C
  19
• 3.1 Connection diagram - coolant hoses for 5-cylinder diesel engine
  19
• 3.2 Connection diagram - coolant hoses for 4-cylinder diesel engine
  21
• 3.4 Removing and installing heater coolant shut-off valve N279
  25
• 3.5 Coolant temperature sender for heater G241
  26
• 4 Fuel supply to auxiliary coolant heater Thermo Top Z/C
  27
• 4.1 Fuel take-off
  27
• 4.2 Testing fuel delivery rate
  27
• 4.3 Removing and installing metering pump V54
  30
• 5 Regulation of auxiliary coolant heater Thermo Top Z/C
  31
• 5.1 Function description
  31
• 5.2 Heating mode
  31
• 5.3 Switching off auxiliary coolant heater
  31
• 6.1 Removing auxiliary coolant heater radio receiver R149
  33
• 6.2 Function description of remote control
  34
• 7 Auxiliary air heater Air Top 3500 and Airtronic D3
  36
• 7.1 Overview of Air Top 3500 and Airtronic D3
  36
• 7.2 Removing and installing auxiliary air heater Air Top 3500
  37
• 7.3 Dismantling and assembling auxiliary air heater Air Top 3500
  41
• 7.4 Removing and installing auxiliary air heater Airtronic D3
  43
• 7.5 Dismantling and assembling auxiliary air heater Airtronic D3
  47
• 7.6 Removing and installing air intake silencer
  49
• 7.7 Removing and installing exhaust system
  49
• 7.8 Removing and dismantling auxiliary air heater bracket
  50
• 7.9 Covers for auxiliary air heater Air Top 3500
  51
• 7.10 Removing and installing auxiliary heater control unit J364 , Airtronic D3
  52
• 7.11 Removing and installing heater unit of auxiliary air heater D3 on housing
  53
• 7.12 Removing and installing burner unit of Airtop 3500
  55
• 7.13 Removing and installing burner unit of Airtop D3
  55
• 7.14 Removing and installing glow plug with flame monitor Q9 for Airtronic D3
  58
• 7.15 Removing and installing mantle of Airtronic »D3«
  59
• 7.17 Removing and installing combustion air blower V6 of Airtronic D3
  63
• 7.18 Removing and installing heat exchanger of Airtronic D3
  65
• 8 Fuel supply for auxiliary air heater Air Top 3500 and Airtronic D3
  68
• 8.1 Removing and installing metering pump V54
  68
• 8.2 Testing fuel delivery rate
  69
• 9 Airtronic D3 and Air Top 3500 auxiliary air heater regulation
  71
• 9.1 Principle of operation of Airtronic D3 auxiliary air heater
  71
• 9.2 Principle of operation of auxiliary air heater Air Top 3500
  73
• 9.3 Fault code output Air Top 3500
  76
• 9.4 Function of auxiliary air heater operating and display unit E407 or roof display unit J702
  77
• 9.6 Connectors on auxiliary air heater operating and display unit E407 or roof display unit J702
  78
• 10 Other components of auxiliary air heater Air Top 3500 and Airtronic D3
  81
• 10.1 Removing and installing temperature sensor G18 , Air Top 3500
  81
• 10.2 Ambient temperature sender 2 G249 , Airtronic D3
  82
• 10.3 Removing and installing remote control receiver for auxiliary air heater
  82
• 10.4 Function description of remote control
  83