Audi Air conditioning 2003 A8 Workshop Manual page 54

Audi A8 2003 ➤
Air conditioning - Edition 09.2010
Note
Mark the motor/flap connecting element on removal to avoid
♦
interchange with the connecting elements of other control mo‐
tors.
In the event of the fault „Upper or lower limit value exceeded",
♦
check the motor/flap connecting element. It must be properly
attached to the motor and there must not be any clearance
between the control motor mount and the connecting element.
The position of the air recirculation flap control motor -V113-
♦
beneath the scuttle panel trim is such that rainwater may drip
onto the cover -B- and ingress by way of the separation point
between the air conditioning unit and the cover into the hous‐
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
ing and onto the control motor or into the connector at the
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
control motor. with respect to the correctness of information in this document. Copyright by AUDI AG.
To prevent the ingress of water, the joint between the housing
♦
sections has been sealed at the factory as of 02.2003 with
adhesive sealant (e.g. silicone adhesive sealant -D 176 001
A3- ) and/or round butyl packing (diameter 3 mm). The packing
is inserted in the joint between the cover -B- for the control
motor and the cover with air recirculation flap to provide a seal.
As of 12.2003, a modified cover -A- was gradually introduced
♦
(with an additional sealing lip) for the air recirculation flap con‐
trol motor -V113- with 4 attachment points for the bolts -B- and
-C- (instead of 2 attachment points), an appropriately modified
cover with air recirculation flap -E- and a wiring harness with
a modified socket -D- ⇒ Electronic parts catalogue .
If water has ingressed into the connector -B- or the control
♦
motor, this can no longer adjust the air recirculation flap and
faults may be stored in the fault memory for this control motor.
In addition, corrosion at the plug contacts may cause contact
resistance at the connector. On vehicles with a sun roof with
solar cells, such contact resistance may lead to an increased
air conditioner no-load current input.
5.14.1 Removing
– Switch off ignition.
– Remove the plenum chamber cover on the left and right.
– Remove the dust and pollen filter
– Remove the body brace with the reinforcement to the scuttle
panel trim. ⇒ Running gear; Rep. gr. 40
– Remove the windscreen wipers and scuttle panel trim: ⇒
Electrical system; Rep. gr. 92
48
Rep. gr.87 - Air conditioning system
⇒ page 31 .