Caution:
- Fuel is flammable and a hazard to health.
- Observe relevant safety regulations.
Drain fuel tank, if necessary.
Remove the fuel filler cap.
Remove the reducer unit with roll-over valve (1) and disconnect the hoses.
Remove the roll-over valve.
Installation is the reverse of the removal procedure.
Secure non-reusable hose clips with pliers, BMW # 13 1 500.
Caution: Make sure that O-ring seal (2) is correctly seated. After installing, check fuel filler cap for leaks.