2007 Mercedes SL-Class Owner's Manual - Page 319

Operation Winter driving Snow chains Snow chains should only be driven on snow-covered roads at speeds not to exceed 30 mph (50 km/h). Remove chains as soon as possible when driving on roads without snow. Please observe the following guidelines when using snow chains: Use of snow chains is not permissible with all wheel/tire combinations ( page 435). Use snow chains in pairs and on rear wheels only. Follow the manufacturer's mounting instructions. Use of snow chains may be prohibited depending on location. Always check local and state laws before installing snow chains. Do not use snow chains on the spare wheel ( page 440). Do not use snow chains on wheels with MOExtended tires* ( page 439). ! When driving with snow chains, always select setting 1 of the level control system ( page 225). Other settings may result in damage to your vehicle. ! Some tire sizes do not leave adequate clearance for snow chains. To help avoid serious damage to your vehicle or tires, use of snow chains is not permissible with 285/35 R18 97W 285/35 R18 97Y 285/35 ZR18 97Y 285/30 ZR19 98Y XL (Extra Load) i When driving with snow chains, you may wish to deactivate the ESP® ( page 91) before setting the vehicle in motion. This will improve the vehicle's traction. ! If snow chains are mounted to the front wheels, they may scrape against the body or axle components. The tires or the vehicle could be damaged as a result. Only use snow chains that are approved by Mercedes-Benz. Any authorized Mercedes-Benz Center will be glad to advise you on this subject. 318