How Do I Replace the Fuel Filter on a 2001 BMW 330i

1. Open the glove box. Open the fuse box by turning the two white tabs on either side of it. Remove the #54 fuse, which controls the fuel pump. Remove the gas cap. Start the engine and let it run until it stalls from lack of fuel.
2. Raise the BMW with a floor jack. Lower it onto jack stands at all four corners. Remove the fuel filter protective panel, which is located under the car just to the front of the drivers seat. The panel is held on with four screws that are removed with a Phillips screwdriver.
3. Remove the metal clamp that holds the fuel filter in place using your hand. Loosen the six hose clamps that fasten the fuel lines to the fuel filter. Place a container under the filter to catch spilled fuel. Pull the hoses off of the filter. You may need to twist the hoses with pliers to get them off of the filter.
4. Drain the excess fuel from the filter into the container. Discard the filter. Install the new fuel filter in the same orientation as the old one. Slide the fuel lines onto the new filter. It is recommended to replace the BMW hose clamps with conventional hose clamps that can be tightened with a screwdriver, as the original clamps require a special tool to tighten easily. You can also use a pair of pliers to tighten the original hose clamps a little at a time.
5. Reinstall the clamp that holds the filter in place. Reinstall the oil filter protective panel. Lower the car back to the ground. Reinstall the #54 fuse. Put the fuel cap back on. Start the car and check for leaks.

How to Change the Cabin Air Filter in a 5 Series BMW

1. Shut the engine off and open the hood.
2. Locate the cabin air filter compartment in the rear (near the windshield) part of the passenger side engine bay.
3. Remove the 13mm bolt from the assembly with a socket wrench. Unplug the pressure sensor connection from the assembly.
4. Flip up the two latches that attach the top part of the assembly. Lift the cover and the cabin air filter from the vehicle (the filter is attached to the cover).
5. Remove the old filter from the compartment cover. Insert the new filter, lining up the filter and cover notches.
6. Inspect the bottom part of the compartment for debris (leaves, twigs, etc.) Remove them from the compartment and wipe it with a dry towel.
7. Insert the top part of the compartment with the new filter. Snap up the two latches, reconnect the pressure sensor and tighten the 13mm bolt.
8. Repeat the process for the driver side cabin air filter.

How to Remove Mercedes C300 W204 Air Filter Housing

1. Open the hood of the car. Grasp the sides of the smaller engine cover in the front of the engine compartment and pull up to disengage the clips. Work around all four edges to release the cover, then set it aside.
2. Disconnect the air hose running to the rear engine cover. Pull up on the cover, working around all four edges. Turn the cover upside down to access the two engine air filters.
3. Pull the air filters out of the mounting area. Slide the replacement filters into place. Push the rear engine cover into place until the clips lock. Align the front engine cover and press it into place.

How to Reset the E90 Cabin Air Filter Warning

1. Replace the cabin air filter if you have not done so already. Open the hood and examine the passenger side of the engine bay near the firewall to find the cabin air filter housing. The filter extends from one end of the engine bay to the other.
2. Remove the six 8mm bolts from around the cabin air filter housing. Lift the cover off to expose the filter.
3. Remove the old filter and discard it. Insert the new filter, replace the cover and tighten the bolts.
4. Insert your smart key into the electronic ignition. Press the Engine Start/Stop button without placing your foot on the brake (or on the clutch, if its a manual transmission). Wait for the service warning light to disappear.
5. Press and hold the trip odometer reset button (on instrument panel). Wait for the oil can icon to appear (it will appear after the service triangle) to indicate you are at the service menu.
6. Toggle the indicator stalk until you reach Cabin Filter. Press and hold the BC button at the end of the stalk to reset the interval and turn off the warning display.