Audi R8 2017 Owner's Manual page 269

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Removing and mounting a wheel
Fig. 182 Wheel: int ernal hex socket to turn the wheel
bolts
Fig. 183 Wheel: alignment pin in t he top hole
Removing a wh eel
• Remove the top wheel bolt complete ly using
the hex socket in the screwdr iver hand le (in t he
vehicle tool kit)
¢
fig . 182 and place it on a
clean surface.
• Install the alignment pin (from the vehicle tool
kit) by hand into the empty hole ¢ fig . 183 U.
• Remove the rest of the wheel bolts.
• Remove the wheel ¢ CI). The alignment pin re-
ma ins in the ho le while do ing this.
In stall a wh eel
Read the directions on ¢ page 267 when instal-
ling unidirectional tires.
• Slide the wheel above the alignment pin ¢ Ci).
• Install the wheel bo lts and tighten gent ly using
the hex socket.
• Remove the alignment pin and also tighten the
remaining wheel bolt .
l )
Appli es t o vehicles with ceram ic brake rotor s• : use a s ec-
on d alignme nt pin• (from t he ve hicle too l kit) for t he low-
e st hole acco rding to t he step s descr ibed for the first
alignm e nt pin.
Em er gen cy a ss istanc e
• Carefully lower the vehicle using the vehicle
jack* .
• Tighten the wheel bolts in a d iagonal pattern
using the wheel wrench.
The wheel bolts must be clean and loosen/t ight-
en easily . Check the contact surfaces for the
wheel and hub. Contaminants on these surfaces
must be removed before installing the wheel.
A
WARNING
-
Never use the hex socket in the screwdriver
handle to t ighten the wheel bolts . Using the
hex socket will not ach ieve t he required t ight-
ening torque, which increases the risk of an
accident.
(D
Note
When removing or installing the wheel, the
rim could hit the brake rotor/ceram ic brake
rotor* and damage the rotor. Work carefully
and have a second person he lp you .
@
Tips
- When mount ing tires with unidirectional
tread design make sure the tread pattern is
pointed the right way ¢ page 267 .
- The wheel bolts sho uld be clean and easy to
t urn. Check fo r dirt and co rrosion on the
mating surfaces of bo t h the wheel and the
hub. Remove all dirt from t hese s urfaces be-
fore remounting the whee l.
Unidirectional tires
-
A unidirectional t ire profi le is identified by arrows
that point in the running direct ion on the tire
s idewall. You must always adhere to the spec i-
fied running direction . This is necessa ry ensure
the tire's opt imum pe rformance in regard to ad-
hesion , running no ise, friction and hydroplaning .
To benefit fully from the advantages of the uni-
directional t ire design, you should replace faulty ..,
267