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Block diagram of auxiliary heater > < Removing and installing burner element

A4 Mk3

Removing and installing heat exchanger
Removing and installing heat exchanger
Preparation
–  Switch off ignition (and auxiliary heater).
–  Removing auxiliary heater → Chapter
–  Detaching add-on components of auxiliary heater → Chapter
–  Dismantling auxiliary heater → Chapter
–  Removing combustion air blower -V6- → Chapter
–  Removing burner element → Chapter
Removing
   
–  Use a suitable screwdriver to carefully press the heat exchanger -2- through the rear water connection (water inlet) -arrow A- out of the water jacket -1- in the direction of -arrow B-.
  Note
This illustration shows a burner element -5- with round connection area. The burner element -5- fitted with this auxiliary heater has a connection area of rectangular design → Electronic parts catalogue.
Installing:
Install in reverse order; paying attention to the following:
–  If applicable, clean the inside and outside of the heat exchanger -2- with a brass wire brush (spark plug brush).
–  Check the sealing surfaces at the heat exchanger -2- for damage.
–  Prior to assembly, always replace the O-ring -3- and the seal -4-.
  N82-0115
–  Pay attention to the installation position of the heat exchanger -arrows-.
  N82-0096

Block diagram of auxiliary heater > < Removing and installing burner element