Audi Q7 2015 Owner's Manual page 241

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Weight Rating will also change the per-
formance and handling characterist ics of
your vehicle, which could cause a crash
result ing in serious injury or death .
- The Gross Vehicle Weight Rating for your
vehicle would be exceeded if your vehicle
is simultaneously equipped with Panor-
amic sliding sunroof; th ird-row seating;
trailer towing equipment (factory or
dealer-installed), and running boards
(dealer-installed) . UNDER NO CI RCUM-
STANCES MAY ALL SUCH ITEMS BE IN-
STALLED ON THE SAME VEHICLE.
Operating instructions
MAX 6.9"
MAX175mm
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Fig. 232
Permitted ball posit ion of t he tra iler hitch
Trailer towing weights
W ith a factory-installed tra iler hitch, the
maximum permissible trailer we ight is 6,600
lbs (3,000 kg). The maximum permissible un-
braked trailer weight is 1,650 lbs (750 kg).
With an aftermarket trailer hitch, the maxi-
mum permissible t railer we ight is 5,500 lbs
(2,500 kg). These specifications apply when
driving on roads having an incline of less than
12%.
Permissible tongue load
For best vehicle handling under these
changed conditions, adjust the trailer load so
that the tongue load is at the maximum al-
lowable or slightly lower. You can get an ap-
proximation of the tongue load with a bath-
room scale or you can measure the load at a
trucking company or weighing station .
With a factory-installed tra iler hitch, the
maximum permissible load on the ball hitch
Trailer towing 239
may not exceed 660 lbs (300 kg). With an af-
termarket trailer hitch, the maximum permis -
sible load on the ball hitch may not exceed
550 lbs (250 kg).
It
is recommended to use
the maximum permissible load.
Trailer load distribution
Be sure the load in the trailer is held securely
in place to prevent it from shifting forward,
backward or sideways.
Never allow a passenger to ride in a trailer
¢ .& in Driving instructions on page 240.
Ball mount
The trailer hitch may only be used w ith suita-
ble ball mount and ball ¢ fig. 232. Installa-
t ion of the hit ch ball must be carried out in ac-
cordance with the manufacturer's instruc-
tions. At the height dimension of 1.5 in
(38.5 mm) a tolerance of+/- 0.5 in (12 . 7 mm)
is perm issible.
Engine cooling system
Towing a trailer makes the engine work hard-
er. It is important that the cooling system's
performance is up to the additional load.
Make sure that the cooling system has enough
fluid .
Tire pressure
When towing a t railer, inflate the t ires of your
vehicle to the cold tire pressure listed under
" Full load" on the tire pressure label. The tire
pressure label is located on the driver's side B-
pillar . Inf late trailer tires to trai ler and t ire
manufacturers' specificat ions.
Lights
The headlight settings should be checked with
the trailer attached before driving off . Check
to make sure both vehicle and trailer lights
are working properly .
Safety chains
Be sure trailer safety chains are properly con-
nected from the trailer to the hitch on the
ve-
hicle . Leave enough slack in the chains to per-
mit turning corners. When you install safety
Ill-
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