Jaguar XK JJM 18 02 30 701 - Manual (Page 230)

Wheels and Tires
264
L
Incorrect wheel alignment will accelerate
tire wear. If there is wear on the inner or
outer edges of the tread pattern it will be
advantageous to have the cause detected
by having the wheel alignment checked.
Do not interchange tires from side to side,
front to rear or vice versa.
Note:
1. On all models the rear wheel and tire
assemblies are larger than the front.
These larger assemblies must never
be fitted to the front of the vehicle.
2. On certain models the tires may be
directional type. These tires must be
fitted so that when viewed from the
side of the vehicle, direction of
rotation arrow, on the tire wall, points
in the vehicle forward direction of
travel when positioned at the top of
the tire.
Damage
Caution: Do not use paraffin
(kerosene), because this has a
detrimental effect on rubber.
Excessive local distortion can cause the
casing of a tire to fracture and may lead to
premature failure. Tires should be
examined especially for cracked walls,
exposed cords, etc. Flints and other
sharp objects must be removed from the
tire tread; if left in they may work through
the cover. Clean off any oil or grease
contamination by using a suitable cleaner.
Tire repair
Damaged tires should be replaced with
new tires fitted. They must not be repaired
in view of the high performance capability
of the vehicle.
Tire replacement
When replacing tires, it is preferable to fit
a complete vehicle set. If either front or
rear tires only need to be renewed, new
tires must be fitted as axle sets.
After new tires have been fitted the
wheels need to be dynamically balanced.
Do not fit tires with a different tread
pattern, size or speed rating.
The installation of replacement tires with
steel cord body plies in the tire sidewall
may cause malfunction of the Tire
Pressure Monitoring System (TPMS) and
is not recommended (cord material
information is moulded on the tire
sidewall).
Additionally, if your vehicle was equipped
with run-flat tires, replacing them with
tires that are not identical to those
originally fitted may cause malfunction of
the TPMS, and is not recommended.
Always check your TPMS indicator after
replacing one or more tires on your
vehicle. See TPMS, page 267.
Tire ageing
!
WARNING:
Tires degrade over time, even when
they are not being used. It is
recommended that tires generally be
replaced after six years of normal
service. Heat caused by hot climates or
frequent high loading conditions can
accelerate the ageing process.
You should replace the spare tire when
you replace the other road tires due to
the ageing of the spare tire.