Manual: 2013/2014 911

Page: 230

Snow Tire Use

The standard tires profile and rubber mixture are optimized for wet and dry driving conditions, and may not prove favorable for snow conditions.

  • Install snow tires before driving in such conditions.


Risk of insufficient road grip leading to loss of control and damage to the vehicle.

The standard tires profile and rubber mixture are optimized for wet and dry driving conditions, and may not prove favorable for snow conditions.

  • Install snow tires before driving in such conditions.

Before mounting snow tires, consult with your Porsche dealer. They have the technical information necessary to advise you on wheel and tire compatibility.

  • Snow tires should have the same load capacity as original equipment tires and should be mounted on all four wheels.

Tire Hazards

Driving the vehicle with low tire pressure increases risk of a tire failure and resulting loss of control. Furthermore, low tire pressure increases the rate of wear of the affected tires and causes damage. Tires with badly worn treads are very dangerous and could cause accidents.

  • Make sure they are replaced immediately.
  • Do not exceed the snow tire speed rating.

Snow tires do not have the same degree of traction on dry, wet or snowfree roads as normal tires.

Furthermore, snow tires wear rapidly under these conditions.


Information
We recommend that you fit snow tires on the vehicle at temperatures below 45 °F (7 °C) since the driving performance of summer tires is reduced at low temperatures and a lower level of comfort can also be expected. For example, juddering noises caused by the tires can occur while maneuvering the vehicle or accelerating out of bends on both dry and wet road surfaces.

Extremely low temperatures can cause permanent damage to summer tires.

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

Comply with all state and local laws governing snow tire and tread depth requirements.


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.

Wheel change

  • When wheels are removed, mark the direction of rotation and position of each wheel.
    Example: FR (front right), FL, RR and RL.
  • Always fit the wheels in accordance with the markings.

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.
  • Use only the fine-link snow chains recommended and authorized by Porsche so that sufficient clearance between the wheel well and the chain is assured.
  • Please see the chapter "WHEELS, TIRES" on page 261.
  • Follow instructions issued by the supplier of the chains.