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Removing and installing exhaust system > < Auxiliary heater -D3W- (supplementary heater), vehicles: ? 05.00

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Repairing auxiliary heater -D3W- (supplementary heater)
Repairing auxiliary heater -D3W- (supplementary heater)
  Note
t  Before every repair, please read out the fault memory of the heater control unit -J162- using the diagnostic tester -VAS 5019- → Chapter.
t  A manufacturer's plate is fitted on the auxiliary heater unit. This plate provides information about the type of auxiliary heater installed in the vehicle → Fig..
t  Removing and installing auxiliary heater components → Chapter; Dismantling and assembling auxiliary heater -D3W-.
t  Check the coolant circuit after working on the coolant circuit → Rep. Gr.19.
   
1 - Metering pump -V54-
q   Fuel supply to auxiliary heater → Chapter.
2 - Auxiliary heater
q   With heater control unit -J162-
q   Removing and installing → Chapter
q   Dismantling and assembling → Chapter
3 - Exhaust system
q   Removing and installing → Chapter
q   Securing front exhaust pipe to auxiliary heater → Fig..
q   Securing rear exhaust pipe to silencer → Fig.
4 - Coolant hoses
q   Coolant hose routing; connecting auxiliary heater to coolant circuit → Chapter.
5 - Ambient temperature switch -F38-
q   Switch position -On- at temperatures lower than 5 °C
q   Switch position -Off- at temperatures above 5 °C
q   Removing → Fig.

   
Manufacturer's plate
  Note
t  The most important technical data are shown on upper part of manufacturer's plate.
t  Only the 25 1864 01 version for -D3W- is factory-fitted in the Alhambra 1996 ►.
t  The date of first use is entered on the lower part of manufacturer's plate.
t  The year the unit was first put into use must be entered on the “Genuine part” manufacturer's plate. The heat exchanger for the auxiliary heaters does not have to be renewed after 10 years. Legislation in Germany dictates that air heaters must be renewed.
  N82-0037
Removing ambient temperature switch -F38-
–  Unclip ambient temperature switch -F38--1- from holder.
  Note
In vehicles from model year 10.1998, the wiper motor must also be replaced → Rep. Gr.92.
–  Checking ambient temperature switch -F38- → Chapter
  N82-0128

Removing and installing exhaust system > < Auxiliary heater -D3W- (supplementary heater), vehicles: ? 05.00