2006 BMW M5 Owner's Manual - Page 181

New wheels and tires Have new wheels and tires installed only by your BMW center or tire shop that works according to BMW repair procedures with correspondingly trained personnel. If this work is not carried out properly, there is a danger of subsequent damage and related safety hazards. Make sure that the new wheels are balanced.< Wear indicators at the tread-groove base, refer to arrow, are distributed over the tire's circumference and are marked on the side of the tire with TWI - Tread Wear Indicator. If the tire tread has been driven down to the wear indicators, a tread depth of 0.063 in/1.6 mm has been reached. Retreaded tires BMW does not recommend that you use retreaded tires, as driving safety may be impaired. The causes for this include the possibly different tire casing structures and the often wide variations in their age, which can result in a limited service life.< Wheel/tire damage Please note that low-profile tires cause wheels, tires and suspension parts to be more susceptible to road hazards and consequential damages. Unusual vibrations encountered during normal vehicle operation can indicate tire failure or some other vehicle defect. This can, for example, be caused by driving over curbs. These kinds of problems may also be signaled by other changes in vehicle response, such as a strong tendency to pull to the left or right. In these cases, reduce speed immediately and have wheels and tires thoroughly checked. To do so, drive carefully to the nearest BMW center or tire shop that works according to BMW repair procedures with correspondingly trained personnel. If necessary, have the vehicle towed there. Tire damage can be extremely dangerous for vehicle occupants and other road users.< The right wheels and tires BMW recommends that you use only wheel and tire combinations that BMW has tested and approved for your particular vehicle. Variations in factors such as manufacturing tolerances mean that even wheels and tires with identical official size ratings could actually have different dimensions than the approved units - these differences could lead to body contact, and with it the risk of severe accidents. When selecting the tires, also ensure that they have a sufficient load-carrying capacity. If non-approved wheels and tires are used, BMW cannot evaluate their suitability, and therefore cannot be held liable for driving safety.< You can inquire about the right wheel/tire combination at your BMW center. The correct wheel/tire combination also affects various systems whose function would otherwise be impaired, e.g. ABS or DSC. To maintain good handling and vehicle response, use only tires of a single tread configuration from a single manufacturer. Following tire damage, have the original wheel and tire combination remounted on the vehicle as soon as possible. Navigation Reference Mobility Communications Entertainment 179 Online Edition for Part No. 01 41 0 012 213 - © 02/06 BMW AG Driving tips Controls At a glance