2002-2010 Porsche Cayenne SUV Trailer Hitch User Manual
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Trailer Hitch for Your Porsche Cayenne SUV First Generation (2002-2010)

242 Trailer coupling
Trailer Hitch
Trailer coupling........................................... 243
Trailer coupling with removable ball hitch......245
Electrically folding trailer coupling ................251
Trailer coupling 243
Trailer coupling
f Please follow the operating instructions for the
trailer.
f Do not modify or repair the trailer coupling.
Retrofitting
Have a trailer coupling retrofitted only by a quali-
fied specialist workshop. They are familiar with the
manufacturer’s specifications and any necessary
conversion measures.
We recommend that you use a Porsche partner
for this work since these are staffed with trained
personnel and have the necessary parts and
tools.
Electrical connection
Your Porsche is equipped with a 13-pin plug for
the electrical connection to the trailer.
If you wish to tow trailers with a 7-pin plug, an
appropriate adapter must be used.
Definitions
The towed weight (gross weight of the trailer) is
the sum of the trailer’s empty weight and the
weight of the load.
The vertical coupling load is the weight that the
trailer drawbar exerts on the trailer coupling of the
vehicle.
The rear-axle load is the vehicle weight on the
rear axle plus the weight of the transported load
and the vertical coupling load of the trailer.
The gross weight of the vehicle and trailer is
the sum of the weight of the towing vehicle and the
weight of the trailer.
f Never exceed the permissible individual
weights.
Safety notes!
Driving with a trailer
f Always observe the permissible towed weight,
vertical coupling load and rear-axle load.
This information is provided in the chapter
Technical Data in this Driver’s Manual:
Please observe the chapter “WEIGHTS” on
Page 369.
f When connected, the trailer must always be
horizontal behind the towing vehicle. If neces-
sary, use a trailer with an adjustable drawbar.
f When the vehicle is driven in the mountains, the
engine output decreases as altitude increases.
The maximum weights stated are the values at
sea level. The total weight of the vehicle-trailer
combination must therefore be reduced by
10 % for each increment of 1,000 metres
altitude. Please take this into consideration
when planning your route.
Distributing the load
f Distribute the load in the trailer so that heavy
objects are as close to the axle as possible.
Always safeguard all objects against slipping
and tie them down securely.
f You should make the best possible use of the
trailer coupling’s rated vertical coupling load
when loading the trailer, but never exceed it.
244 Trailer coupling
Tyre pressure
f Select the vehicle tyre pressure for full load
when towing a trailer.
f The information on tyre pressure is provided in
the chapter Technical Data in this Driver’s
Manual:
Please observe the chapter “TYRE
PRESSURES, COLD” on Page 367.
f Check the tyre pressure of the trailer’s wheels
according to the manufacturer’s instructions.
Door mirrors
f If the width of the trailer obstructs your view of
the traffic behind the trailer, you must have
additional door mirrors fitted.
Headlights, lights
f Always check the headlight adjustment before
driving with a trailer.
If necessary, correct with the headlight beam
adjustment function.
f Check whether the plug of the trailer is
plugged into the towing vehicle and whether all
lights function.
Driving with a trailer
The vehicle with trailer must be used at a speed
appropriate to street and traffic conditions, as well
as adjusted to the loading situation. Never exceed
a speed of 80 km/h (50 mph). Excessive speed
considering the conditions of use can lead to
losing control of the vehicle-trailer combination.
f Carefully and gradually familiarise yourself with
the handling and braking behaviour of the
vehicle-trailer combination.
f Do not drive with the towing vehicle empty and
the trailer loaded.
If this unfavourable condition is unavoidable,
please drive especially slowly.
f Bear in mind the different vehicle handling and
size in situations such as braking, parking,
cornering and overtaking, etc.
f The driving stability of the vehicle-trailer combi-
nation worsens as the speed increases. There-
fore, drive especially slowly on downhill
stretches and in the case of unfavourable road
and weather conditions (such as wind).
f Drive in an appropriately low gear on downhill
stretches in order to make use of the engine
braking effect.
f Slow down immediately if the trailer starts to
sway. Do not countersteer; brake if necessary.
Never attempt to straighten out the vehicle-
trailer combination by accelerating.
f Activate the Low Range off-road driving
programme when moving off on steep slopes.
f Under no circumstances may people, animals
or objects be in the space between the trailer
and towing vehicle when the vehicle is moving.
f When reversing, bear in mind that ParkAssist is
not active.
Maintenance note
f Please take into consideration that driving with
a trailer places much greater stress on all
vehicle components. Expert inspection and
maintenance after every use are indispensable
prerequisites for proper functioning and safety.
Trailer coupling 245
Hitching trailer
f Always turn off the alarm system before you
attach a trailer. The inclination sensor could
trigger the alarm unintentionally.
Unhitching trailer
f Always turn the alarm system off before
uncoupling the trailer, otherwise the alarm will
be tripped when the plug is removed.
f If the trailer is equipped with an overrun brake,
do not unhitch the trailer when its brake is still
applied.
Trailer coupling with removable
ball hitch
The removable ball hitch is stored in the tool box
under the loadspace floor cover.
1. Open and prop up the loadspace floor cover.
For information on opening the loadspace
floor: Please observe the chapter “OPENING
LOADSPACE FLOOR” on Page 223.
2. Open Velco strap of the tool box.
3. Remove the top part of the tool box.
4. Take ball hitch out of the bottom part of the
tool box.
Warning!
Danger of injury and risk of damage by flying
ball hitch in an accident, during braking and
in the case of direction changes.
f Do not transport the ball hitch in the vehicle
unsecured.
f Transport the ball hitch only in the tool box.
Risk of damage to the locking mechanism of
the ball hitch, so that safe use of the trailer
coupling is no longer ensured.
f Never use auxiliary devices or tools to insert or
remove the ball hitch.
The ball hitch can be inserted and removed
using normal manual force.
Risk of accident if the ball hitch is not
properly locked.
f Use the trailer coupling only when it is locked
and the key has been withdrawn.
246 Trailer coupling
Notes on operation
f Do not modify or repair the ball hitch or
mounting tube.
f Consult a qualified specialist workshop if you
experience handling difficulties, notice
anything unusual or find any faults.
f Make sure that the ball hitch is properly locked
in place prior to every journey.
f When driving with a trailer, always lock the lock
and withdraw the key.
f Never unlock the ball hitch when a trailer is still
hitched to the vehicle.
f Always remove the ball hitch and stow it in the
tool box when driving without a trailer.
f Insert the plug into the mounting tube
whenever the ball hitch is removed.
f Important: before using the ball hitch for the
first time, write down the number embossed
on the key.
Note field for
key number .................................
Trailer coupling 247
Inserting ball hitch
The mount for the ball hitch and the socket are
located below the bumper.
A plug in the mounting tube protects it against
soiling.
Removing plug
f Pull plug A out of the mounting tube.
Store plug in the tool box.
f Before inserting the ball hitch, always check
the mounting tube for signs of soiling. In order
to ensure that the ball hitch locks securely, it is
very important to remove any dirt in the
mounting tube.
Preparing the ball hitch
Shank B, locking balls C and handwheel D must
not be soiled or damaged.
Ball hitch E must be pretensioned for insertion.
Checking whether the ball hitch is
pretensioned
– Key F must be in the lock, the arrow on the key
must point towards the “lock open” symbol
and the key cannot be withdrawn.
– The red marking G on the handwheel must
point towards the green area H on the ball
hitch.
248 Trailer coupling
– There must be a clearly visible space between
the handwheel and the ball hitch; the gap J
between handwheel and ball hitch must be
around 5 mm.
– It must be possible to press locking balls C
completely into the shank with their full
diameter.
If the ball hitch is not pretensioned, tension it
as described below:
f The ball hitch must be unlocked, i.e. the arrow
on the key must point to the “lock open”
symbol on the handwheel.
f Hold the ball hitch with your left hand.
Pull the handwheel out in arrow direction 1
with your right hand and then, with the
handwheel still pulled out, turn it in arrow
direction 2 until it engages.
The ball hitch has now been pretensioned.
If the ball hitch cannot be pretensioned, it must not
be used.
f Consult a qualified specialist workshop. We
recommend that you use a Porsche partner for
this work since these are staffed with trained
personnel and have the necessary parts and
tools.
Attaching ball hitch to the vehicle
When inserting ball hitch E, do not touch
handwheel D with your hand. When the ball hitch
locks into place, the handwheel rotates back
counter-clockwise and comes into contact with
the ball hitch again.
1. Insert tensioned ball head E into mounting tube
K in the direction of the arrow and push it up
firmly until the ball hitch snaps into place.
Trailer coupling 249
2. Turn key L counter-clockwise to lock the ball
hitch and then withdraw the key. Once the key
has been removed, it must not be possible to
pull the handwheel to the side.
3. Cover lock with cap M.
4. Store key in the tool box.
Safety check
You can use the following 4 points to check
whether the ball hitch was fitted properly.
Warning!
Risk of accident.
f Do not use the trailer coupling if at least one of
the 4 points below is not met.
Consult a qualified specialist workshop. We
recommend that you use a Porsche partner for
this work since these are staffed with trained
personnel and have the necessary parts and
tools.
1. The green marking N on the handwheel must
coincide with the green area H on the ball
hitch.
2. The handwheel must be in contact with the ball
hitch.
3. After firmly shaking by hand, the ball hitch
must still be securely seated in the mounting
tube.
4. The key must have been withdrawn and cap M
must be in place.
Trailer socket
The socket is located to the left of the inserted ball
hitch.
250 Trailer coupling
Removing ball hitch
1. Uncap the lock.
Insert key and turn clockwise to unlock.
The arrow on the key must point to the “lock
open” symbol on the handwheel.
Warning!
Danger of injury by the heavy ball hitch.
f When removing the ball hitch, hold it in such a
way that your hand cannot be pressed onto the
road surface.
2. Hold ball hitch E with your left hand. Pull
handwheel D out in arrow direction 1 and
then, with the handwheel still pulled out, turn it
as far as it will go in arrow direction 2.
Hold handwheel in this position.
3. Remove ball hitch from the mounting tube in
arrow direction 3.
Release handwheel.
The ball hitch has now been tensioned and can
be stowed in the tool box in this state.
4. Always insert the plug into the mounting tube
to protect against soiling.
Tip on driving
The ball hitch must always be removed when
driving without a trailer.
Care instructions
The ball hitch and mounting tube must be kept
clean to ensure proper functioning.
Remove the ball hitch and insert the plug before
cleaning the vehicle with a high-pressure cleaner,
steam cleaner or similar device.
The ball hitch must not be cleaned with a high-
pressure cleaner, steam cleaner or similar device,
because this would wash out the lubricating
grease inside the ball hitch.
Trailer coupling 251
Electrically folding trailer coupling
Warning!
Danger of injury and risk of damage when
the ball hitch is extended or retracted.
f Make sure that no persons, animals or obsta-
cles are in the movement range of the ball
hitch.
f In order to stop the ball hitch movement in the
event of danger, touch rocker switch A again.
f Never swivel the ball hitch if a trailer is hitched
to the vehicle or a bicycle carrier or similar
item is mounted on or supported by the ball
hitch.
f Use the trailer coupling only with the ball hitch
fully extended.
f Never use auxiliary devices or tools to inter-
fere with the movement of the ball hitch. This
could damage the locking mechanism. Safe
use of the trailer coupling would then no longer
be guaranteed.
f Make sure that the ball hitch is properly locked
in place prior to every journey.
Preconditions
– The vehicle must be stationary.
– The rear lid or rear window must be open.
Extending
f Press top half of rocker switch A.
The ball hitch automatically extends to
operating position.
The red light-emitting diode in the rocker
switch flashes until the ball hitch reaches
operating position.
Preconditions
– The vehicle must be stationary.
– The rear lid or rear window must be open.
– Trailer must be unhitched.
– The plug (and any adapter) must have been
removed from the socket.
– There must not be any items on the ball hitch
(e.g. ball protection cap, bicycle carrier, etc.).
Extending trailer coupling
Retracting trailer coupling
252 Trailer coupling
Retracting
f Press bottom half of rocker switch A.
The ball hitch automatically moves to retracted
position.
The red light-emitting diode in the rocker
switch flashes until the ball hitch reaches
retracted position.
Notes on operation
– The ball hitch must be in retracted position
when not in use.
– The plug of the trailer, bicycle carrier or similar
item must be plugged in when the trailer
coupling is in use.
– In order to stop the ball hitch movement in the
event of danger, touch rocker switch A again.
The two red light-emitting diodes in the rocker
switch flash rapidly to indicate this interruption.
It is prohibited to use the trailer coupling
in this intermediate position.
f A warning appears on the multi-purpose
display in the event of malfunctions. For infor-
mation on warning messages on the multi-
purpose display: Please observe the chapter
“OVERVIEW OF WARNING MESSAGES” on
Page 151.
Trailer socket
The socket is located to the right of the extended
ball hitch.
The socket is retracted along with the ball hitch.
Overload protection
When the rocker switch is used in one-touch
mode, movement of the ball hitch is interrupted if
resistance is encountered. The red light-emitting
diode in the rocker switch flashes rapidly to
indicate this interruption.
Switching overload protection off
f Keep the rocker switch depressed (for at least
2 seconds) until the ball hitch has reached
operating or retracted position.
Care instructions
When cleaning the vehicle with a high-pressure
cleaner, steam cleaner or similar device, make
sure that the cleaning jet does not strike the ball
hitch seal directly. Moisture could penetrate.
Faults
f Consult a qualified specialist workshop if you
experience handling difficulties, notice
anything unusual or find any faults.
We recommend that you use a Porsche
partner for this work since these are staffed
with trained personnel and have the necessary
parts and tools.
Storing end positions of the trailer coupling
The end positions of the trailer coupling could be
lost after a fault (e.g. when the battery is discon-
nected and reconnected).
To teach the end positions:
– Press and hold top half of rocker switch A until
the ball head has reached operating position.
– Press and hold bottom half of rocker switch A
until the ball head has reached retracted
position.

Related Topics

Trailer coupling Trailer coupling with removable ball hitch Electrically folding trailer coupling

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