Installing Wheel Electronics
Every set of wheels or wheel change must be communicated to the control unit. In particular, this is necessary when wheel positions have been interchanged. For this purpose, always select the tire type and tire size under Main menu > Tire pressure > Settings in the instrument cluster. The control unit then learns the wheel positions again while the vehicle is driving.
- Clean the valve bore very carefully (visual inspection).
Information
When replacing the wheel electronics -
- Always use a completely new valve.
- Always use a new fastening screw.
- Fit the wheel electronics unit loosely at the valve (do not tighten) and position it in the valve bore together with the new valve.
Information
Counter the new valve with an assembly pin (supplied with the new valve).
- The valve-stem seal may become twisted and can cause damage.
- Fit the washer, chamfered on both sides, from outside and screw on the union nut until it is seated correctly. Visibly screw in the bore at the valve foot and block it using the supplied assembly pin.
- Push wheel electronics -1-
slightly into rim well (this adjusts the angle of inclination of valve to wheel electronics).
Information
When tightening the wheel electronics unit/valve, tighten to the specified tightening torque evenly and in one movement. The tightening process must not be interrupted.
- Remove the assembly pin after tightening the components.
- Tighten self-locking (Torx) fastening screw to the specified tightening torque → Tightening torque: 4 Nm (3 ftlb.)+/-0.5 Nm (+/-0.5 ftlb.)
. The wheel electronics unit should now be lying evenly against the rim.
Information
The wheel electronics must not come into contact with the tire mounting paste or solvent.
When mounting tires, ensure absolute cleanliness around the wheel electronics unit.