WHEEL TORQUE SETTINGS FOR1 SERIES COUPE
Though I do not have the specific factory recommendation for this vehicle, I can tell you that 85 ft-lbs is the industry standard torque for all alloy wheels. No manufacturer will build a car that requires a significantly different torque because the tire shops would trash it.
The important thing is not that the lug nuts are at the correct torque to achieve a specific pressure (as with head bolts) or a specific degree of stretch (as with flywheel bolts) but rather that they all be the same, so that the force on the hub and brake rotor is uniform. The bolts just have to be tight enough so they don't come loose and the brake heat can transfer to the wheel, but not so tight that they damage the wheel. 85 ft-lbs uniform tension will get you where you want to be.
By the way, if you want to take good care of your hubs, brakes, and wheels, don't let anyone else touch them. The tire shop will tell you that they use their impact wrenches to snug the nuts only to 60 ft-lbs, then tighten the lugs the rest of the way with their torque wrenches. Stand outside their shop and watch them sometime. 90% of the time, they put their torque wrench on and don't get any more turn on the bolt before the wrench clicks. That means the nut is already tighter than 85 ft-lbs, and they have no idea how much tighter.
Jan 27, 2011 |
2011 BMW 1 Series