The 2010s-era M-B GL550 was a full-size luxury SUV from Mercedes-Benz that came equipped with a 382 hp 5.5L V8 as well as optional 4Matic AWD, a full slate of high-tech features and the typical Benz commitment to quality and engineering. (NOTE: no info on OEM tires in Metabase).
Your Benz may have left the factory with 295/40R21 111V XL or 295/40R21 111W XL tires, so be sure of your tire size when you shop 2011 Mercedes-Benz GL550 tires. Premium all-season tires would be a great choice, thanks to their long wear, quiet, comfortable ride, responsive handling and year-round traction. Think about tires like the Michelin Pilot Sport All Season 4 (with 45k mile treadwear warranty), Pirelli Scorpion Zero or Yokohama Geolandar X-CV (with 50k mile treadwear warranty). If you really want to push the envelope of handling with your GL550, there are summer and ultra-high-performance tires like the Michelin Pilot Sport 4 SUV and Toyo Celsius Sport.
Browse 2011 Mercedes-benz Gl550 tires by Trim and Size.