A4 Quattro Wagon V6-2.8L (AHA) (1998)
/Page-1944001.png)
Valve: Service Precautions
WARNING:
Sodium-filled exhaust valves must not be scrapped without first being properly treated.
The valves must be cut open using a hacksaw, by hand between the valve head and the middle of the stem.
The valves must not come into any contact with water while being cut
After cutting open the valves, throw not more than 70 at a time into a bucket of water and step back. A sudden chemical reaction will
occur during which the sodium filling is consumed.
Valves that have been treated in this way can be disposed of as normal waste.
