Review on Mann Filter WK842 23X Fuel Filter by Terry Kohl

filter is an exact match to OEM fuel filter. The water sensor is easy to install using small hex head screws and the included o-rings (unscrew, rotate 30 degrees, then lift slightly to remove). You will need a 5mm Allen key to loosen the filter clamp. The part number on the filter matches the window cutout on the filter holder perfectly, so you know it's positioned correctly before you block the filter. My filter didn't have a socket/grommet around it and it fit into the clamp with no problem. Including new pilot/vent valve (plastic, like OEM) for water separator. Switch the ignition to position 1 and press the reset button (on the left side of the display) three times to enter service mode to allow the fuel pump to work. continuously and deflate (you can hear it working). Wait about 30 seconds and then turn off the ignition to exit service mode. Since we usually make these filters at the same time as you change the oil, you can use the same procedure to check the oil level. First set the display to mph/km/h. Turn the ignition to position 1. Press the reset button three times and then press the up arrow to view the oil level gauge. Set the ignition to position 2 and the current oil level is displayed.