A8L Quattro Sedan V8-42L (BVJ) (2007) Tire Pressure Sensor Replacement
-
Push metal valve with rubber seal from the inside through the rim.
-
Attach chamfered washer and union nut from the outside and tighten by hand.
-
Secure against twisting with counterhold -1- (poss. drill 2 mm diameter).
Tightening torque 4 Nm
-
Press wheel electronics -1- into the drop center rim and bolt on at the rear at the valve with micro-encapsulated screw.
Tightening torque 4 Nm
Tire change
The nickel-plated valve insert must be replaced every time the tire is changed.
The metal valve and the wheel electronics can be reused.
-
Release the air from the tire by unscrewing the nickel-plated valve insert.
-
Remove tires
Visual inspection for loose or damaged parts. Replace entire valve complex when bolted connections are detached.
Always replace damaged wheel electronics.
-
Mount tires.
-
Screw in new nickel-plated valve insert.
-
Fill tire, screw on plastic cap again.
-
Balance tires.
Fig. 1 Removing tire
Roll or press off tires
When using removing blades first press off tire on opposite side of valve.
Do not use removing blades in shaded area -a-.
-
Position puller knob in vicinity of valve so that the tire lever can be positioned approx. 30 degrees -b- next to the valve.
-
Then pull off the tire in the valve area first.