2009-2012 Boxster – Manual

2009-2012 Boxster – Manual

Page: 208

Screw in two assembly aids for cars with Porsche Ceramic Composite Brake

  1. Take the wheel off and put a new wheel on.
    Please see the chapter "WHEEL BOLTS" on page 206.
  2. Insert wheel bolts and tighten by hand.
  3. Remove assembly aids, screw in remaining wheel bolts.
    Initially tighten bolts only slightly in diagonally opposite sequence so that the wheel is centred.
  4. Inflate the tire if necessary.
    Please see the chapter "TIRE PRESSURE FOR COLD TIRES (68 °F/20 °C)" on page 241.
  5. Lower the car fully and remove the jack.
  6. Tighten wheel bolts in diagonally opposite sequence.

  • Immediately after changing a wheel, use a torque wrench to check the prescribed tightening torque (96 ftlb./130 Nm).

Note on operation for vehicles with Tire Pressure Monitoring

  • On vehicles with Tire Pressure Monitoring, the settings on the on-board computer must be updated after the wheel change.
  • Please see the chapter "TPM TIRE PRESSURE MONITORING" on page 121.

Checking tire pressure with a pressure gage

  1. Remove the valve stem cap from the tire.
  2. Press the pressure gage onto the valve stem.


  • Do not press too hard or force the valve stem sideways, or air will escape.
    If the sound of air escaping from the tire is heard, reposition the pressure gage.

  1. Read the tire pressure on the gage stem and compare it to the permissble tire pressure.
    This information can be found on the tire pressure plate or in the chapter Technical Data.
    Please see the chapter "TIRE PRESSURE FOR COLD TIRES (68 °F/20 °C)" on page 241.
  2. Remove the pressure gage.
  • Please see the chapter "TPM TIRE PRESSURE MONITORING" on page 121.

Flat Tire
A tire sealant and compressor with pressure tester are located in the luggage compartment.

  • Please observe the safety and operating instructions on the special sealant bottle with a special Porsche part number and on the compressor – these are essential.

Sealing the tire with the tire repair kit is only an emergency repair. Even with the tire air-tight, it may be used only for short journeys in an emergency.

The maximum permitted speed is 50 mph (80 km/h).

  • Do not use commercially available sealant or tire inflating bottles.
    Use only the tire sealant located in the luggage compartment.

Damaged Tires

Damaged tires could burst causing loss of control of the vehicle.

  • Have the tire replaced by a specialist workshop as soon as possible.
  • Avoid hard acceleration and high cornering speeds.
  • Observe maximum speed of 50 mph (80 km/ h).
  • Always observe the safety and operating instructions, which can be found in the separate operating instructions for the sealant and on the compressor.

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