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Audi 8V0.055.204.A Instrucciones De Instalación página 129

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Installation instructions - Audi A3 2013 ► Audi A3 2014 ► Electrics set for removable tow-
ing bracket, scope of delivery 8V0.055.204.A Audi Genuine Accessories
Edition 03/2014
◆ Function test of all electrical consumers.
– When doing so, please also refer to the ⇒  operating manual
for the vehicle.
Note
After reconnecting the power supply, the ESP warning light can
only extinguish after a few metres have been driven.
7.2
Adjusting the coding
The codes are adjusted using the ⇒  vehicle diagnostic tester.
This must be connected "online".
– Consult an Audi or VW workshop.
7.3
Function testing
– Test the function of the trailer socket -U10- using the trailer
socket tester -VAS 5800-, a trailer or a test lamp.
◆ Connection assignment at the trailer socket -U10-
⇒  P age
58.
7.4
Adjusting the cooling system
As trailer operation puts greater demands on the engine cooling
system, the cooling system is upgraded—where technically
possible—when the towing bracket is installed in the factory.
This is achieved by installing a more powerful or second cooling
fan and/or a larger cooler. Hot country versions of vehicles and/
or those with air conditioning systems have a more powerful en-
gine cooling system, but this system may not be adequate for
towing.
When a towing bracket is retrofitted, the cooling unit should be
upgraded unless this has already been done at the factory. Oth-
erwise, a high engine load (e.g. high trailer load, high ambient
temperatures, mountains) could cause the cooling system to
overheat. In the event of an alteration, the parts in the Genuine
Parts catalogue must be used in the engine cooling system dur-
ing trailer operation. The work instructions in the relevant work-
shop manuals must also be observed.
The cooling system does not need to be upgraded if it is possi-
ble to guarantee that the engine is only exposed to moderate
stress, e.g.:
◆ The permissible gross combination weight is significantly un-
derrun
◆ No high ambient temperatures
◆ No long, steep inclines
◆ No high altitude journeys
In any case, the coolant temperature display must be carefully
monitored. If the display moves into the hot area, the speed
must be reduced immediately. A cool-down time must also be
60
7 Concluding operations

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