2016 AUDI S6 relay

Trailer mode Driving with a trailer
General information
Your Audi was designed primarily for passenger
transportation .
If you plan to tow a trailer, please remember that
the additional load will affect durability, econo­
my and performance.
T railer tow ing not only p laces more stress on the
vehicle, it a lso calls for more concentration from
the dr iver.
F or this reason, always follow the operating and
driving instructions provided and use common
sense.
(D Note
If you are going to tow a trailer, you must ac­
tivate the trai ler operation mode
¢ page 199, Operating instructions.
Technical requirements
Tr ailer hitch
Use a weight -carrying hitch conforming to the
gross tra iler weight. The h itch must be suitab le
for your vehicle and tra ile r and must be mo unted
securely on the vehicle's chassis at a
technically
sound
location . Use on ly a trailer hitch with a re­
movable ba ll mou nt. Always che ck wit h the t rail­
e r hitch manufac turer to make s ure that you a re
usi ng the co rrect hitch .
Do not use a bumper hitch .
The hitch must be installed in such a way that it
does not interfere with the impact -absorbing
bumper system . No mod ifica tions should be
made to the vehicle exhaust and brake systems .
Fr om time to time, chec k that all hitch mo un ting
bo lts rem ain securely fastened.
W hen you are not tow ing a trailer,
remove the
tra iler hitch ba ll mount . This prevents the hitch
from ca u sing damage s hou ld your veh icle be
struck from behind
¢ .&, .
Trailer mode
Trailer brakes
If your traile r i s equ ipped with a b raking sys tem,
c h ec k t o be sure that it con forms to a ll regu la ­
tions.
T he tra ile r h ydr aulic bra ke sy stem must not be
directly con nected to the vehicle's hydr aulic
brake sy stem.
Safety chains
Always use safety chains between your vehicle
and the tra iler .
Trailer lights
Trailer lights must meet all regulations. Be sure
to check w it h your Aud i dealer for correct wir ing,
swi tches and relays .
Mirrors
If you are unab le to see the traffic behind you us­
ing the regular outside mirrors, then you
must in­
stall extended mirrors . It is important that you
always have clear vision to the rear .
A WARNING
--
After remov ing the tra ile r hi tch, do not sto re
i t in yo ur vehicle. In case of sudde n brak ing,
t he hitch could fly fo rwa rd and injure you or
your passengers.
Operating instructions
Maximum trailer weight
A traile r for yo ur vehicle is lim ited to a typical
cla ss 1 or class 2 trailer.
Trailer load distribut ion
Be sure the load in the tra iler is held secure ly in
place to p reve nt it from shifting forward, back­
ward o r sideways.
Ne ver allow a passenger to ride in a trailer¢.&.
in Driving instructions on page 201 .
Engine cooling system
Towing a tra ile r makes the engine wor k harder. It
is important that the cooling system's perform­
ance is up to the additional load. Make sure that
the cool ing system has enoug h fluid . .,..
199

(D Note
Never use a fast charger as a booster to start
the engine . This will serious ly damage sensi­
tive electronic components, such as control units, relays, radio, etc., as well as the battery
charger.
Battery replacement
The new battery must have the same specifica­
tions and dimensions as the original equipment
battery .
Intelligent energy management in your vehicle is
responsible for distributing the electrical energy
throughout your vehicle
¢ page 192 . The intelli ­
gent energy management system w ill keep the
engine battery charged better than vehicles with­
out this system . To make sure the addit ional
e lectrica l energy is available once again after you
have changed the battery, we recommend that
you install batteries of the same type and manu­
facture only (the same as those installed at the
time your veh icle was delivered). Specifications
are listed on the battery housing. Your author­
ized dealer must code the battery in the energy
management system to enable you to use the en­
ergy management functions correctly after re­
p lacing the battery .
The new battery must have the same capacity,
voltage (12-volts), amperage, construction and
plug sealing .
When installing the battery, make sure the igni­
tion and all electrical consumers are sw itched
off.
(D Note
Make sure the ventilation hose on the side of
the battery is connected, otherw ise fumes or
battery acid can leak out.
- Vehicles with the Start-Stop-System* are
equipped with a special cycle-proof AGM
battery . Install ing a different type of bat­
tery can cause prob lems in the vehicle elec­
trical system. When replacing the vehicle
battery, always install one with the same
specifications as the original battery.
Checking and Filling
{® For the sake of the environment
Because of the problem of proper disposal of
a battery, we recommend your authorized
Audi dealer change the battery for you. Bat­
teries contain sulfur ic acid and lead and must
always be disposed of properly in compliance
with all environmental regulations. Disposing
of veh icle batteries improperly is very danger­
ous to the environment .
Windshield/head Light
washer container
Fig. 192 Eng in e compar tment: cover on the windshie ld
and head light * washer fluid reservoir
The washer fluid container is marked with the
symbol~ on its cap
¢fig. 192, c:;,page 218,
fig. 186 .
.. Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS c::;, A in Working in the engine compart­
ment on page 216.
.. Lift the filler cap tongue to add washer fluid .
You can fill the container to the top .
.. Press the cap back onto the filler neck after fill-
ing the container .
You can find the reservoir
capacity in the table in
¢page 271.
Clean water should be used when filling up. If
possible, use soft water to prevent scaling on
washer jets. Always add a glass cleaner solution
(with frost protection in the winter) . ..,.
229

Emergency situations
Emergency situations
General
This chapter is intended for trained emergency crews and working personnel who have the nec­
essary tools and equipment to perform these
operations.
Starting by pushing or
towing
CD Note
Vehicles with an automatic transmission can­
not be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine con be started by con­
necting it to the battery of another vehicle .
If the engine should fail to start because of a dis­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, using a
pair of jumper cables to start the engine.
Jumper cables
Use only jumper cables of sufficiently large cross
section
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use only jumper cables with
insulated terminal
clamps which are distinctly marked :
plus(+) cable in most cases colored red
minus(-) cable
in most cases colored black .
A WARNING
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal in­
jury. Follow the instructions below for safe hand Ling of your vehicle's battery .
-Always shield your eyes and avoid leaning
over the battery whenever possible.
-A discharged battery can freeze at tempera­
tures just below 32 °F (0 °C). Before con­
necting a jumper cable, you must thaw the
264
frozen battery completely, otherwise it could explode .
- Do not allow battery acid to contact eyes or
skin. Flush any contacted area with water immediately.
- Improper use of a booster battery to start a
vehicle may cause an explosion.
- Vehicle batteries generate explosive gases.
Keep sparks, flame and lighted cigarettes
away from batteries.
- Do not try to jump start any vehicle with a
low acid level in the battery .
- The voltage of the booster battery must also
have a 12-volt rating. The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batteries of different voltage or substantial­
ly different "Ah" rating may cause an explo­
sion and personal injury .
- Never charge a frozen battery. Gas trapped in the ice may cause an explosion .
- Never charge or use a battery that has been
frozen . The battery case may have be weak­
ened .
- Use of batteries of different voltage or sub­ stantially different capacity (Ah) rating may
cause an explosion and injury. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
~page 216.
CD Note
-Applying a higher voltage booster battery
will cause expensive damage to sensitive
electronic components, such as control
units, relays, radio, etc.
- There must be no electrical contact between
the vehicles as otherwise current could al­
ready start to flow as soon as the positive
(+) terminals are connected.
@ Tips
The discharged battery must be properly con-
nected to the vehicle's electrical system. .,.