Mercedes-Benz SLR McLaren. Operator's Manual.

Operation
Tires and wheels
Removing anti-theft wheel nuts
Unscrew anti-theft wheel nut 1 using
wheel nut key 2.
Replace anti-theft wheel nut 1 with
one of the regular wheel bolts.
Fasten the wheel bolt and tighten it
with a torque wrench to a tightening
torque of 95 lb-ft (130 Nm).
Warning! G
The wheels could come loose if the wheel
bolts are not tightened to a torque of 95 lb-ft
(130 Nm). Have the tightening torque
checked after changing a wheel.
286
Fitting anti-theft wheel nuts
Unscrew a wheel bolt from one of the
wheels.
Replace that wheel bolt with one of the
anti-theft wheel nuts 1 delivered with
your vehicle.
Fasten anti-theft wheel nut 1 using
wheel nut key 2 and tighten with a
torque wrench to a tightening torque of
95 lb-ft (130 Nm).
Warning! G
The wheels could come loose if the wheel
bolts are not tightened to a torque of 95 lb-ft
(130 Nm). Have the tightening torque
checked after changing a wheel.
i
Keep the anti-theft wheel nut key in a
convenient place in your vehicle where
you and service personnel can always
find it easily when it is needed.
i
If you should lose the anti-theft wheel
nut key or one of the anti-theft wheel
nuts, please contact an authorized
Mercedes-Benz Center for a replacement.