Panamera S (970) V8-4.8L (2010)
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The wheel electronics are removed
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The self-locking -1- fastening screw is loose
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The bead seat sealing ring -6- is porous or damaged
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The valve body -7- is bent
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The union nut -4- is loose.
The wheel electronics -A- must be replaced if:
2nd generation wheel electronics
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The housing is visibly deformed
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The filter surface (round, porous section on back of wheel electronics) is so badly soiled that it can no longer be cleaned by wiping
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Tire sealant (tire sealing liquid) has been used
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The service life of the battery has expired
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There is a fault within the wheel electronics.
After removal of the tire, the wheel electronics -A- can be seen at the valve in the outer rim well base.
Fitted wheel electronics, by way of example
1. Release wheel electronics from valve using a Torx socket screwdriver T 20 (if necessary, counter with a suitable assembly pin, e.g. steel pin
diameter approx. 1.8 mm in bore at valve foot) and remove it.
2. Then unscrew union nut and remove valve.