Auxiliary heater

Chapter overview

• Supplementary heating
  1
• 1 Safety precautions for working on vehicles with auxiliary/supplementary heater
  1
• 2 Notes on general repairs on vehicles with auxiliary/supplementary heaters
  2
• 2.1 Starting conditions for auxiliary heating (preheater)
  2
• 2.2 Starting conditions for auxiliary heating
  2
• 3 Rules for cleanliness when working on the auxiliary heater and the fuel system
  3
• 4 Fittings location overview - auxiliary/supplementary heater
  4
• 5 Auxiliary/supplementary heater
  8
• 5.1 Fittings location overview - auxiliary/supplementary heater
  8
• 5.2 Assembly overview - auxiliary/supplementary heater, internal
  10
• 5.3 Removing and installing auxiliary heater Thermo Top V/fleece
  11
• 5.4 Removing and installing air intake silencer
  15
• 5.5 Removing and installing circulation pump V55
  15
• 5.6 Removing and installing silencer with bracket
  17
• 5.7 Removing and installing exhaust system
  17
• 5.8 Removing and installing exhaust pipe
  18
• 5.9 Removing and installing bracket for auxiliary/supplementary heater
  19
• 5.10 Removing and installing cover
  20
• 5.11 Dismantling and assembling auxiliary heater Thermo Top V/fleece
  20
• 5.12 Removing and installing glow plug with flame monitoring Q8
  21
• 6 Coolant circuit with auxiliary/supplementary heater
  23
• 6.1 Coolant hose connection diagram
  23
• 6.2 Removing and installing heater coolant shut-off valve N279
  37
• 7 Fuel supply
  39
• 7.1 Extracting fuel from Thermo Top V/fleece
  39
• 7.2 Removing and installing metering pump V54
  41
• 7.3 Testing quantity of fuel delivered
  42
• 8 Regulation of auxiliary/supplementary heater
  45
• 8.1 Functional description of Thermo Top V/fleece
  45
• 8.2 Preheating mode
  46
• 8.3 Auxiliary heating mode
  46
• 8.4 Switching off auxiliary/supplementary heater Thermo Top V/fleece
  47
• 9 Other controlling and regulating components
  49
• 9.1 Removing and installing ambient temperature sensor G17
  49
• 9.2 Removing and installing remote control receiver for auxiliary coolant heater R149
  49
• 9.3 Functional description of remote control for auxiliary/supplementary heater
  50