Manual: 2013/2014 911

Page: 200

Radiator fan, engine compartment blowers

Radiator Fans, Engine Compartment Blowers

The engine-compartment blowers are mounted under the engine compartment lid.

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.

  • 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.

  • Carry out work in these areas only with the engine switched off.
  • Take great care to ensure that parts of the body, items of clothing or jewellery cannot be drawn in by the radiator fan, enginecompartment 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.