2009-2012 Boxster – Manual

2009-2012 Boxster – Manual

Page: 202

Excessive Speed for Tires

Exceeding the maximum permitted speed for the tires fitted could cause tire failure.

  • Always check the maximum speed rating on the tire sidewall on any tire on the vehicle.
  • Never exceed the maximum speed rating of the tires.

  • Fit snow tires to both axles well before the cold season begins.
    Your authorized Porsche dealer will be pleased to advise you.

We recommend fitting snow tires on the vehicle at temperatures below 45 °F (7 °C) since the driving performance of summer tires is reduced at low temperatures. Summer tires may be permanently damaged at extremely low temperatures.

Snow tires lose their traction capability when their tread depth falls below 5/32 in. (4 mm).

Snow chains

Risk of damage to body, axle or brake components.

  • Fit snow chains only to the rear wheels, and only with the tire/rim combination listed in the Technical Data.
    To ensure adequate clearance between chain and body, Porsche recommends only the use of fine-link chains such as those approved by Porsche.
  • Follow instructions issued by the supplier of the chains.

Different states and countries have varying statutory requirements regarding maximum speed.

Check with local authorities for possible restrictions.

  • Remove chains as soon as the roads are free of ice and snow.

Fitting snow chains
The use of snow chains is not permitted when 5 mm spacers are mounted.

Risk of damage to the wheel housings if the 5 mm spacers are not removed before fitting snow chains.

  • To permit the fitting of snow chains, have the 5 mm spacers removed on all 4 wheels.

  • To fit/remove the spacers:
    Please consult an authorized Porsche dealer.
  • Please see the chapter "SPACERS" on page 211.

Tire designations
Due to new speed and load ratings for radial tires, new designations have come into force for snow tires for your Porsche.

The designation to be used for ZR tires is e.g., 265/40 ZR 18 (Z = code letter for radial tires for speeds above 150 mph / 240 km/h).

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