Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Replace Fuel Tank Cap Gasket

Model: BMW Serie 7 E68, MK 4, E65, E67, E66 - Years: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Part: Fuel cap

See other generations:
Video tutorial

The fuel tank cap is equipped with a gasket that seals the tank, preventing the escape of vapors generated inside the tank due to increased pressure; these vapors are directly introduced into the intake manifold through a valve that detects the pressure increase in the tank.

A failure of the cap gasket will result in decreased pressure in the tank, triggering the check engine light on the dashboard; replacing the cap gasket is obviously very simple.


Updated on 19 February 2026 by ScegliAuto


Related tutorials

Replacing Car Speakers
Replacing Car Speakers
BMW Serie 7 (2001-2008 / E68, MK 4, E65, E67, E66) The following guide is for replacing the speakers in your car. The first step is to remove the grilles in front of the speakers. Then, using a screwd…
Replacing Automotive Bushings
Replacing Automotive Bushings
BMW Serie 7 (1994-2001 / E38, MK 3) If the bushings on your vehicle are worn, they need to be replaced, along with the control arms, suspensions, shock absorbers, sway bar links, etc. Y…
Replacing Stabilizer Bar Bushings
Replacing Stabilizer Bar Bushings
BMW Serie 7 (2001-2008 / E68, MK 4, E65, E67, E66) This guide shows how to replace the bushings of the stabilizer bar. To facilitate removal, disconnect the bar. It is a very simple job; just disconne…

Other guides you may be interested in

How to Reset the Tyre Light on a Toyota Aygo?

To reset the tyre light on a Toyota Aygo, start by locating the reset button, which is found in the glove compartment of the front passenger side. Turn on the car and ensure that the tyres are at the correct pressure. Then, press and hold the reset button for a few seconds until the tyre light either flashes or turns off, depending on the model. Release the button and wait for the reset procedure to complete. Restart your Toyota Aygo and check if the tyre light has turned off, indicating that the reset was successful.

Watch the video!


by ScegliAuto

More videos