McLaren P1 Owner's Handbook Manual page 197

MAINTAINING YOUR McLAREN
WHEELS AND TYRES
WARNING: The tyres must be mounted
according to the labelling on the tyre
wall. The benefits of asymmetric tyres
will only be available if the tyres are fitted
correctly.
Inspecting Wheels and Tyres
At least every 14 days, check the tyres for
cuts, punctures, tears, bumps, deformation
and cracks. Check wheels for severe
corrosion. Damaged wheels could cause a
loss of tyre pressure.
Regularly check the tyre tread depth and the
condition of the tread across the whole width
of the tyre. Turn the front wheels to full lock in
order to inspect the inner tread.
When the tread is worn to 1.6mm, the wear
indicators appear on the surface of the tread
pattern, producing a continuous band of
rubber across the width of the tyre. Tyres
must be replaced as soon as the wear
indicator becomes visible, or sooner if
legislation dictates replacement at a greater
tread depth.
NOTE: It is recommended that you
always have your tyres replaced by your
McLaren Retailer. In order to avoid
damage to Tyre Pressure Monitoring
System (TPMS) sensors, the tyres must
be replaced using the correct procedure.
WARNING: Tyre grip decreases rapidly on
wet or icy roads, particularly when the
tread depth is close to the minimum.
You could lose control of the vehicle and
cause an accident due to the reduced
grip of the tyres. Reduce your speed and
drive with greater care.
NOTE: If tread wear is uneven across the
tyre, or becomes excessive, the wheel
alignment should be checked.
Regularly check the pressure of all your tyres
and correct the pressure as necessary, see
Tyre Pressures, page 5.46.
All wheels must have a valve cap fitted to
protect the valve against dirt and moisture.
5.45