Auxiliary heater

Chapter overview

• Technical data
  1
• 1 Safety instructions
  1
• 1.1 Safety precautions for working on vehicles with auxiliary/supplementary heater
  1
• 1.2 Safety measures for when working on vehicles with a start/stop system
  2
• 1.3 Safety precautions when working on the fuel system
  2
• 1.4 Safety precautions when working on cooling system
  3
• 1.6 Safety precautions when working on high-voltage system
  3
• 1.7 Safety precautions when working in vicinity of high-voltage components
  4
• 2 General notes
  5
• 2.1 Starting conditions for auxiliary/supplementary heater
  5
• 2.2 Notes for vehicles with a start/stop system
  6
• 2.4 Identification plates
  6
• 3 Repair notes
  8
• 3.1 General repair instructions
  8
• Supplementary heating
  9
• 1 Fittings location overview - auxiliary/supplementary heater
  9
• 1.1 Fittings location overview - auxiliary/supplementary heater components
  9
• 2 Auxiliary/supplementary heater
  12
• 2.1 Fittings location overview - auxiliary/supplementary heater
  12
• 2.2 Assembly overview - auxiliary/supplementary heater attachments
  14
• 2.3 Assembly overview - auxiliary/supplementary heater, internal
  15
• 2.4 Removing and installing auxiliary/supplementary heater
  16
• 2.5 Dismantling and assembling auxilary/supplementary heater
  21
• 2.6 Removing and installing air intake silencer
  23
• 2.7 Removing and installing circulation pump V55
  23
• 2.8 Removing and installing exhaust system
  26
• 2.9 Removing and installing auxiliary/supplementary heater bracket
  26
• 2.10 Removing and installing covers for auxiliary heater control unit J364
  27
• 2.11 Removing and installing glow plug with flame monitoring Q8
  28
• 2.13 Connector pin assignment for supplementary heater
  29
• 2.14 Dismantling and assembling burner unit
  29
• 2.15 Removing and installing auxiliary heater control unit J364 with combustion air blower V6
  30
• 3 Coolant circuit with auxiliary/supplementary heater
  32
• 3.1 Schematic diagram - coolant hoses
  32
• 3.2 Bleeding coolant circuit of auxiliary/supplementary heater
  39
• 3.3 Removing and installing coolant pipes for auxiliary/supplementary heater
  40
• 4 Fuel supply
  43
• 4.1 Fittings location overview - fuel supply
  43
• 4.2 Testing quantity of fuel delivered
  46
• 4.3 Removing and installing metering pump V54
  47
• 4.4 Checking metering pump V54 with end sealing valve
  51
• 4.5 Bleeding fuel line to metering pump V54 (filling with fuel)
  52
• 5 Regulation of auxiliary/supplementary heater
  54
• 5.1 Functional description
  54
• 5.2 Supplementary heating mode
  55
• 5.3 Auxiliary heater mode
  55
• 5.4 Switching off auxiliary/supplementary heater
  55
• 6 Other control components
  57
• 6.1 Removing and installing ambient temperature sensor G17
  57
• 6.2 Removing and installing remote control receiver for auxiliary coolant heater R149
  57
• 6.3 Functional description of remote control for auxiliary/supplementary heater
  60