Test Stand Measurement - Porsche 718 Cayman GT4 Owner's Manual

Test Stand Measurement

Inhalation of Toxic
WARNING
Exhaust Gases
Danger of serious or fatal injuries due to inhalation of
toxic exhaust gases.
Exhaust gas contains colorless and odorless carbon
monoxide, which is toxic even in low concentrations.
e Perform work with the engine running only
outdoors or with suitable extraction systems for
the exhaust gases.
Inadequate Securing of
WARNING
Vehicle
An unsecured or incorrectly secured vehicle can
move unintentionally or tip or fall off lifting equip-
ment such as a jack or lifting platform. This can cause
serious injuries and damage.
e Raise the vehicle using a jack on a solid and flat
surface only.
e Raise the vehicle at the prescribed jacking points
(Fig. 83, Fig. 84) on the vehicle underbody only.
e Always place the vehicle on solid supports when
working under the vehicle.
e Never start the engine when the vehicle is raised.
Engine vibrations can cause the vehicle to fall.
Carrying out test stand
measurements
Power measurement
Porsche does not authorize power measurements on
roller-type test stands.
Carrying out brake tests
e Brake tests must only be performed on roller-
type test stands.
The following limits must not be exceeded:
– Test speed 4.6 mph (7.5 km/h)
– Test duration 20 seconds
In order to fulfill legal stipulations, measurements
with different limit values are permissible (e. g.
exhaust emissions tests etc.).
Carrying out electric parking brake tests
e 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 with the Porsche Doppelkupplung
(PDK) selector lever in position N.
The vehicle switches automatically to the brake test
stand mode in which the electric parking brake can
be tested. A message appears on the multifunction
display in the instrument panel.
Test Stand Measurement
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