Wheels and tires
For wheel and tire specifications (pressure, tightening torques, etc.). Specification
When changing wheels or tyres, you must ensure that local health and safety requirements are met.
If your vehicle is equipped with a tyre pressure monitoring system, only wheels and rims recommended by Jaguar may be used. If the wheel and tyre size is changed (for example, from R18 to R20), the correct pressure information for the new wheel and tyre combination must be entered into the TPMS module. Update the information in the TPMS module using the Jaguar approved diagnostic system.
As a general guideline, remember that tires should only be replaced in pairs or sets, and only with tires of equivalent size and specification.
Check for any symptoms reported by the customer.
Ask the driver as much information as possible to help diagnose the cause.
Before performing a road test, perform a basic inspection to ensure the vehicle is in safe and legal condition.
Basic inspection
- Correct tire pressure.
- Permissible tire tread depth
- Cuts/bulges in the sidewalls of tires
- Tire delamination
- Foreign objects inside the tire
- Wheel rim damage
- Correct installation of the tire (specification, direction of rotation, etc.)
- Any obvious deformation of the tire (flat spots/bulges)
- Wear/damage to steering or suspension components
Road test
If the basic inspection is satisfactory, perform a road test to verify that the stated symptoms are present.
To reproduce the symptoms of the malfunction, test the vehicle on roads similar to those on which the malfunction occurs and at similar speeds. (if the traffic rules allow it).
If you can reproduce the vibration or noise, note the speed at which it appears and see if you can make it disappear by moving faster or slower.
If this is possible, the problem is likely caused by a wheel or tire out of balance.
[Details can be found on the website: www.lrman.ru]
If the vibration or noise increases as the vehicle speed increases, the problem is likely due to wheel or tire deformation, or wear or damage to components.
Checks for deformation
Check for deformation by raising the car so that the wheels hang freely and placing a secure support under the car next to each wheel in turn.
If the support is installed under the tire tread, the tire can be checked for out-of-roundness by manually rotating the wheel and checking for a decrease or increase in the gap between the tread and the support.
If the support is mounted close to the wheel rim or tire sidewall, the wheel and tire can be checked for lateral runout in a similar manner.
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