2006 Mercedes SLK-Class Owner's Manual - Page 349

Operation Winter driving Before the onset of winter, have your vehicle winterized at an authorized Mercedes-Benz Center. This service includes: Checking anticorrosion and antifreeze concentration. Adding of cleaning concentrate to the water of the windshield and headlamp cleaning* system. Add MB Concentrate "S" to a pre-mixed windshield washer solvent/antifreeze which is formulated for temperatures below freezing point ( page 456). Battery test. Battery capacity drops with decreasing ambient temperature. A well charged battery helps to make sure the engine can be started, even at low ambient temperatures. Tire change. ! When scraping ice or snow from the rear window, be careful not to damage the sealing strip or apertures along the side of the window. Winter tires Always use winter tires at temperatures below 45°F (7°C) and whenever wintry road conditions prevail. Not all M+S rated tires provide special winter performance. Make sure the tires you use show M+S and the mountain/snowflake.marking on the tire sidewall. These tires meet specific snow traction performance requirements of the Rubber Manufacturers Association (RMA) and the Rubber Association of Canada (RAC) and have been designed specifically for use in snow conditions. Using winter tires is the only way to achieve the maximum effectiveness of the ABS and ESP® in winter operation. For safe handling, make sure all mounted winter tires are of the same make and have the same tread design. Warning! G Winter tires with a tread depth under 1/6 in (4 mm) must be replaced. They are no longer suitable for winter operation. Always observe the speed rating of the winter tires mounted to your vehicle. If the maximum speed for which your tires are rated is below the speed rating of your vehicle, you must place a notice to this effect where it will be seen by the driver. Such notices are available at your tire dealer or any authorized Mercedes-Benz Center. 348