Auxiliary heater

Chapter overview

• Technical data
  1
• 1 Safety information
  1
• 1.1 Safety precautions when working on vehicles with auxiliary/supplementary heater
  1
• 1.2 Safety measures when working on vehicles with a start/stop system
  2
• 1.3 Safety precautions during work on 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 the vicinity of high-voltage components
  4
• 2 General information
  5
• 2.1 Starting conditions for auxiliary/supplementary heater
  5
• 2.2 Notes for vehicles with start-stop system
  6
• 2.3 Rules for cleanliness when working on auxiliary heater and fuel system
  6
• 2.4 Type plates
  6
• 3 Repair notes
  8
• 3.1 General repair instructions
  8
• Supplementary heating
  9
• 1 Overview of fitting locations - auxiliary/supplementary heater
  9
• 1.2 Overview of fitting locations - auxiliary heater components, Golf Estate
  10
• 2 Auxiliary/supplementary heater
  12
• 2.1 Overview of fitting locations - 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 auxiliary/supplementary heater
  20
• 2.6 Removing and installing air intake silencer
  22
• 2.7 Removing and installing circulation pump V55
  22
• 2.8 Removing and installing exhaust system
  25
• 2.9 Removing and installing auxiliary/supplementary heater bracket
  25
• 2.10 Removing and installing covers for auxiliary heater control unit J364
  26
• 2.11 Removing and installing glow plug with flame monitor Q8
  27
• 2.13 Connector pin assignment for auxiliary/supplementary heater
  28
• 2.14 Dismantling and assembling burner unit
  28
• 2.15 Removing and installing auxiliary heater control unit J364 with combustion air blower V6
  29
• 3 Coolant circuit with auxiliary/supplementary heater
  31
• 3.1 Connection diagram - coolant hoses
  31
• 3.2 Bleeding coolant circuit of auxiliary/supplementary heater
  38
• 3.3 Removing and installing coolant pipes for auxiliary/supplementary heater
  39
• 4 Fuel supply system
  42
• 4.1 Overview of fitting locations - fuel supply system
  42
• 4.2 Checking fuel delivery rate
  44
• 4.3 Removing and installing metering pump V54
  45
• 4.4 Checking metering pump V54 with end sealing valve
  50
• 4.5 Bleeding fuel line to metering pump V54 (filling with fuel)
  51
• 5 Regulation of auxiliary/supplementary heater
  53
• 5.1 Functional description
  53
• 5.2 Supplementary heater mode
  54
• 5.3 Auxiliary heater mode
  54
• 5.4 Switching off auxiliary/supplementary heater
  54
• 6 Other controlling and regulating components
  56
• 6.1 Removing and installing ambient temperature sensor G17
  56
• 6.2 Removing and installing remote control receiver for auxiliary coolant heater R149
  56
• 6.3 Functional description of remote control for auxiliary/supplementary heater
  59