Removing Air Valve of Technology Wheel

General
- It is not necessary to replace the steel valve each time the tire is changed as the seal rings of the valve are highly resilient (silicone).
- However, the valve should be replaced at every second tire change or after three years at the latest.

Technology Wheel Steel Valve Core (Part 1 Of 2):

Technology Wheel Steel Valve Core (Part 2 Of 2):

Important Notes On Removal And Installation
- Do not use proprietary steel valves.
The Porsche valves are shorter (dimension X).
In the case of Porsche valves, dimension X is approx. 43 mm.
- Only the complete valve is available as a spare part.
See spare parts catalog.
- The valve insert is of a proprietary type.
- Valve cap No. 1 is equipped with a seal (air-tight).
Do not use a proprietary valve cap.
- The shank of the fastening nut No. 2 must face the valve base.
Otherwise the valve will not be firmly seated.
- Observe the position of washer No. 3 (arrow).
If the washer is incorrectly installed, the O-ring will be damaged.
This may cause more serious damage.
- When loosening and tightening fastening nut No. 2, you must hold a screw driver against the valve base.
There is a slot for a screwdriver in the valve base.

Installation
- Insert valve No. 5 with base seal (already installed) into wheel.
Push O-ring No. 4 carefully onto valve from outside.
- Install washer No. 3 in correct position (arrow).
The O-ring will then fit into the recess on the washer.
- Install fastening nut No. 2 with shank facing valve base.
- Tighten fastening nut with 3.5 ±0.5 Nm (2.2 ±0.4 ft lb) using a torque wrench.
- When tightening nut, hold a screwdriver against the valve base.