Checking the sealing ring in the fuel tank filler cap
WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
Check that the sealing ring (1) in the fuel tank filler cap is intact, is correctly positioned and has a clean mating surface.
The temperature of the fuel tank filler cap must be 20°C +/- 10°C (68°F +/- 18°F).
The leak test below checks the elasticity of the rubber and for cracks and material wear
Use tool 9995757 for the seal test.