Porsche 928 S4 – Owner’s Manual |
|
Model Year 1987 From
the “Porsche 928 S4 Owner’s Manual”, available from 928 Specialists. |
Collapsible spare tire
The
spare tire is stored underneath the luggage compartment cover. It is covered by a lid with a quick
release catch. The car jack, the
electric air compressor kit and the tire pressure tester are stored inside
the wheel rim. This kit also
includes a plastic cover for the road wheel to keep luggage compartment or
car interior clean. Due
to tread and space save design features of the collapsible tire, car handling
may be affected. Therefore, do not drive more than 50 mph/80 km/h with moderate acceleration when using the collapsible spare tire. It is for emergency use and short distances only. Fitting the spare wheel at the front improves handling of the car and reduces wear on the tires. This applies for cars equipped with locking differential, in particular. Only one collapsible spare tire may be fitted to the car. Remount the original road tire as soon as possible.
WARNING Do not overinflate your spare tire. Inflate
the collapsible tire with the electric air compressor that comes with your
Porsche. Do not use other
equipment!
When
the air is released from the collapsible tire, it will return to its original
shape after cooling down for several hours. Store collapsible tire in the luggage compartment. The collapsible spare tire cannot be repaired or mounted with standard workshop equipment. Repair and remounting must only be done by the tire manufacturer. Tire tread depth As
required by law, the tread depth of the collapsible tire is the same as that
of the original equipment tire.
Replace a worn collapsible spare tire in time. If air compressor does
not work .
. . Check if tobacco or any other foreign matter is lodged in the cigarette
lighter socket. Remove carefully
with a wooden pick. Do not use
metal object to prevent short circuit. .
. . Check if fuse is blown.
Replace with new equivalent fuse. Maintenance of air
compressor The
air compressor is maintenance-free.
Do not apply oil or any other lubricant. The
air filter should be cleaned periodically to assure maximum efficiency of the
unit. You
can guard against wheel theft by installing lockable wheel nuts on your
wheels. Each kit contains three
keys and four wheel nuts with lock sleeve. The locking mechanism is identical for all four wheel
nuts. When taking the vehicle to
your Porsche dealer or to a workshop for wheel or tire service, remember to
leave one key with the service attendant. In case of loss, duplicate keys cannot be furnished by your Porsche dealer. Do not leave these keys in the vehicle. Keep them in a safe place. To unlock a wheel 1.
Remove protective plastic
cap from wheel nut. 2.
Insert key all the
way and turn left about 30°. 3.
Remove lock sleeve
together with inserted key. 4.
Replace protective
plastic cup. Generally, it is not
necessary to balance the wheels after installing lockable wheel nuts. To lock a wheel
WARNING
– Failure to follow these instructions may result in serious personal
injuries to you or to bystanders.
Sequence
of operation
Do not raise the vehicle until you are sure the jack is securely engaged.
Correct
tightness of the wheel nuts is important. Correctly tightened nuts should have a torque of 94 ft.
lb. (130 Nm). This torque can be
obtained with the wheel nut wrench by any person of average strength. If in doubt about the correct
tightness of wheel nuts, have it checked with a torque wrench by your dealer
or at a service station. Lifting with car jack The
jack ports are located below the front and the rear of the doors underneath
the floor pan, hidden from view. WARNING
The
vehicle should never be lifted or jacked up from underneath the engine oil
pan, the transmission housing, or the front or rear axle. This could lead to serious damage. Lifting with workshop hoist
Make
sure there is sufficient clearance between pads and vehicle before driving
vehicle onto hoist, especially it the vehicle has a large front panel or
spoiler. The vehicle must be
lifted only at the lift points illustrated. The
front
lift points for the car jack also apply when using a hoist. The
rear lift
points are located on the rear axle control arm mount. Take care to avoid damaging critical components which are close to the lift points. WARNING When
removing components such as engine block, transmission housing, fuel tank,
wheels, front or rear axle, anchor vehicle to hoist or add corresponding
weights to maintain the center of gravity. Otherwise the vehicle might tilt or slip off the hoist
causing serious damage or personal injury. Lifting with floor jack The
same lift points as illustrated for the hoist also apply when using a floor
jack. To avoid damage to the
underbody or chassis frame, it is necessary to insert a rubber pad between
the floor jack and the lift points. |
|
|