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Minor Repairs 183
If the vehicle is not secured, or incorrectly
secured, during repair work, it could move
unexpectedly or fall from the car jack or car lift.
f Be alert and cautious around the engine at all
times while it is running.
If you have to work on the engine while it is
running, always apply the electric parking
brake.
f Always support your car with safety stands if it
is necessary to work under the car. The jack
supplied with the car is not adequate for this
purpose.
Switch off level control of air suspension and
height adjustment.
Please see the chapter “RAISING THE VEHICLE
WITH A LIFTING PLATFORM, TROLLEY JACK
OR STANDARD JACK” on page 195.
f Jack up the vehicle only at the specified
jacking points on the underside of the vehicle.
f Never start the engine when the vehicle is
jacked or lifted up. Vibration from the engine
could cause the vehicle to fall.
f When working under the car without safety
stands but with the wheels on the ground,
make sure the car is on level ground, the
wheels are blocked, and that the engine
cannot be started. Withdraw ignition keys.
Information
f Incomplete or improper servicing may cause
problems in the operation of the car. If in doubt
about any servicing, have it done by your
authorized Porsche dealer.
Improper maintenance during the warranty
period may affect your Porsche warranty
coverage.
f Some countries require additional tools and
special spare parts to be carried in your
vehicle. Please make enquiries before driving
abroad.
T
The engine-compartment blowers are mounted in
the engine compartment.
After the engine is switched off, the engine
compartment temperature is monitored for
approx. 30 minutes.
During this period, and depending on
temperature, the engine-compartment blowers
may continue to run or start to run.
f Carry out work in this area only with the engine
off and exercise extreme caution.
The radiators and radiator fans are in the front of
the vehicle.
The radiator fans in the front of the vehicle may be
operating or unexpectedly start operating when
the engine is switched on.
f Carry out work in these areas only with the
engine switched off.
f Take great care to ensure that parts of the
body, items of clothing or jewellery cannot be
drawn in by the radiator fan, engine-
compartment blower, drive belt or other
moving parts.
Measurements on test stands
Performance test
Performance tests on roller-type test stands are
not approved by Porsche.
Brake tests
Brake tests must be performed only on roller-type
test stands.
The following limit values must not be exceeded
on roller-type test stands:
– Test speed 4.7 mph (7.5 km/h)
– Test duration 20 seconds
Testing the electric parking brake
Electric parking brake tests on the brake test
stand must only be performed with the ignition
switched on and with the manual gearshift lever in
neutral or the Porsche Doppelkupplung selector
lever in position N.
The vehicle switches automatically to brake test
stand mode, in which the electric parking brake
can be tested.
The message “Electric parking brake in
service mode” appears on the multi-function
display in the instrument panel.
Balancing wheels on the vehicle
During finish balancing of the wheels, the entire
vehicle must be lifted and the wheels must be free
to turn.
Information
The tools required for changing a wheel (e.g. jack,
wheel bolt wrench, assembly aids) are not
supplied as standard with the vehicle. Your
authorized Porsche dealer will be pleased to
advise you.
Failure to secure vehicle
WARNING
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Radiator fans, engine
compartment blowers
WARNING
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