Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
80 – Heating, Ventilation
1 General Information
⇒ “1.1 Servicing Heater System“, page 1
⇒ “1.2 Contact Corrosion“, page 1
⇒ “1.3 Performing Guided Fault Finding on Heating System“,
page 2
⇒ “1.4 Heating System Electrical Components“, page 2
⇒ “1.5 Heater Activation and Control Components“, page 3
1.1 Servicing Heater System
WARNING
Before working on electrical system (wiring), remove relevant
fuse(s).
Note
Disconnect battery before starting electric welding work on vehi‐
cle. Refer to ⇒ Electrical Equipment; Rep. Gr. 27 ; Removal and
Installation .
♦ Contact corrosion. Refer to
⇒ “1.2 Contact Corrosion“, page 1 .
♦ Notes for performing Guided Fault Finding on the heating, re‐
fer to
⇒ “1.3 Performing Guided Fault Finding on Heating System“,
page 2 .
♦ Checking the electrical components on the heating system,
refer to
⇒ “1.4 Heating System Electrical Components“, page 2 .
♦ Checking the electrical components actuated by the heating
system, refer to
⇒ “3.3 Electrical Components Controlled by Heating System,
Checking“, page 16 .
1.2 Contact Corrosion
Contact corrosion can occur if inappropriate fasteners (bolts,
nuts, washers, rivets, plugs, grommets, adhesives etc.) are used.
For this reason, the manufacturer only installs fasteners with a
special surface coating. Also, rubber and plastic parts and adhe‐
sive consist of materials that do not conduct electricity. These
parts, which have been tested and are aluminum compatible, are
also available as replacement parts. Refer to Electronic Parts
Catalog (ETKA).
Note
♦ Always install new parts if there is any doubt as to whether
parts can be reused.
♦ Original equipment replacement parts are recommended.
They have been tested and are compatible with aluminum.
Refer to Electronic Parts Catalog (ETKA).
Audi TT 2007 ➤
Heating, Ventilation and Air Conditioning - Edition 01.2011
1. General Information 1
To Next Page
Loading...
