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 Change a 2002 Mercedes Clk 320 Cabin Filter

1. Remove the two screws on the panel directly beneath the glove compartment.
2. Pull the panel out and down to disconnect it from the dash.
3. Tilt the old filter slightly up. Pull the filter toward the floor of the car to remove it from the filter compartment.
4. Insert the new filter into the compartment. Tilt it slightly forward when it is almost all the way in to get it to fit properly.
5. Replace the panel that covers the filter compartment. Insert the screws that secure the panel in place.